diff --git a/cmd/main-migration/migrations/20251107071420.sql b/cmd/main-migration/migrations/20251107071420.sql
new file mode 100644
index 00000000..a9727884
--- /dev/null
+++ b/cmd/main-migration/migrations/20251107071420.sql
@@ -0,0 +1,6 @@
+-- Modify "Infra" table
+ALTER TABLE "public"."Infra" ADD COLUMN "Parent_Code" character varying(10) NULL, ADD COLUMN "Item_Code" character varying(50) NULL;
+-- Create index "idx_Infra_Code" to table: "Infra"
+CREATE UNIQUE INDEX "idx_Infra_Code" ON "public"."Infra" ("Code");
+-- Modify "Room" table
+ALTER TABLE "public"."Room" DROP CONSTRAINT "fk_Room_Specialist", DROP CONSTRAINT "fk_Room_Subspecialist", DROP CONSTRAINT "fk_Room_Unit", DROP COLUMN "Infra_Id", DROP COLUMN "Unit_Id", DROP COLUMN "Specialist_Id", DROP COLUMN "Subspecialist_Id", ADD CONSTRAINT "fk_Room_Specialist" FOREIGN KEY ("Specialist_Code") REFERENCES "public"."Specialist" ("Code") ON UPDATE NO ACTION ON DELETE NO ACTION, ADD CONSTRAINT "fk_Room_Subspecialist" FOREIGN KEY ("Subspecialist_Code") REFERENCES "public"."Subspecialist" ("Code") ON UPDATE NO ACTION ON DELETE NO ACTION, ADD CONSTRAINT "fk_Room_Unit" FOREIGN KEY ("Unit_Code") REFERENCES "public"."Unit" ("Code") ON UPDATE NO ACTION ON DELETE NO ACTION;
diff --git a/cmd/main-migration/migrations/20251107074318.sql b/cmd/main-migration/migrations/20251107074318.sql
new file mode 100644
index 00000000..5156b74e
--- /dev/null
+++ b/cmd/main-migration/migrations/20251107074318.sql
@@ -0,0 +1,4 @@
+-- Modify "Nurse" table
+ALTER TABLE "public"."Nurse" DROP CONSTRAINT "fk_Nurse_Infra";
+-- Modify "Infra" table
+ALTER TABLE "public"."Infra" DROP CONSTRAINT "uni_Infra_Code";
diff --git a/cmd/main-migration/migrations/20251107075050.sql b/cmd/main-migration/migrations/20251107075050.sql
new file mode 100644
index 00000000..fee27fee
--- /dev/null
+++ b/cmd/main-migration/migrations/20251107075050.sql
@@ -0,0 +1,4 @@
+-- Modify "Nurse" table
+ALTER TABLE "public"."Nurse" ADD CONSTRAINT "fk_Nurse_Infra" FOREIGN KEY ("Infra_Code") REFERENCES "public"."Infra" ("Code") ON UPDATE NO ACTION ON DELETE NO ACTION;
+-- Modify "Room" table
+ALTER TABLE "public"."Room" ADD CONSTRAINT "fk_Room_Infra" FOREIGN KEY ("Infra_Code") REFERENCES "public"."Infra" ("Code") ON UPDATE NO ACTION ON DELETE NO ACTION;
diff --git a/cmd/main-migration/migrations/20251107080604.sql b/cmd/main-migration/migrations/20251107080604.sql
new file mode 100644
index 00000000..246be1fa
--- /dev/null
+++ b/cmd/main-migration/migrations/20251107080604.sql
@@ -0,0 +1,2 @@
+-- Modify "Item" table
+ALTER TABLE "public"."Item" ADD COLUMN "Infra_Code" character varying(10) NULL;
diff --git a/cmd/main-migration/migrations/20251107081830.sql b/cmd/main-migration/migrations/20251107081830.sql
new file mode 100644
index 00000000..a7490211
--- /dev/null
+++ b/cmd/main-migration/migrations/20251107081830.sql
@@ -0,0 +1,6 @@
+-- Modify "Device" table
+ALTER TABLE "public"."Device" ADD COLUMN "Infra_Code" character varying(10) NULL, ADD COLUMN "Item_Code" character varying(50) NULL;
+-- Modify "Material" table
+ALTER TABLE "public"."Material" ADD COLUMN "Infra_Code" character varying(10) NULL, ADD COLUMN "Item_Code" character varying(50) NULL;
+-- Modify "Medicine" table
+ALTER TABLE "public"."Medicine" ADD COLUMN "Infra_Code" character varying(10) NULL, ADD COLUMN "Item_Code" character varying(50) NULL;
diff --git a/cmd/main-migration/migrations/atlas.sum b/cmd/main-migration/migrations/atlas.sum
index 70dd468c..440bd74d 100644
--- a/cmd/main-migration/migrations/atlas.sum
+++ b/cmd/main-migration/migrations/atlas.sum
@@ -1,4 +1,4 @@
-h1:mPG9xfcT+aorrateezmQ8OvETRVigtmHiY1O8i2dpwg=
+h1:A8U7W3JZbEUXu6uzF9wfKvSgX/j+G1nQoxchM989kiw=
 20250904105930.sql h1:MEM6blCgke9DzWQSTnLzasbPIrcHssNNrJqZpSkEo6k=
 20250904141448.sql h1:J8cmYNk4ZrG9fhfbi2Z1IWz7YkfvhFqTzrLFo58BPY0=
 20250908062237.sql h1:Pu23yEW/aKkwozHoOuROvHS/GK4ngARJGdO7FB7HZuI=
@@ -75,15 +75,20 @@ h1:mPG9xfcT+aorrateezmQ8OvETRVigtmHiY1O8i2dpwg=
 20251106040137.sql h1:ppcqkVoT0o9jZcjI/TN7LuaPxXhJQhnIXEJtloP/46o=
 20251106041333.sql h1:2JkxyelQ/EeB+boL5bfpnzefw32ttEGKvKchtQjWmAU=
 20251106042006.sql h1:ruppYa1kAJQUU3ufQBbKGMcXrGbGJJiRPclT+dNc/YQ=
-20251106050412.sql h1:MiEMJ1HCFYnalKuq3Z38xJeogfBAMqsTv2sG4EF8dDw=
-20251106063418.sql h1:y3veDJPjKekOWLCZek/LgQwXPRhZtOppTfUXiqoL95s=
-20251106071906.sql h1:/TUZA3XpMY23qEJXdkTwlzrNMvSSl6JJniPcgAttBaw=
-20251106073157.sql h1:78txeibJ602DMD7huD618ZSMt6phSRzDNPTlo0PGyrc=
-20251106074218.sql h1:8Xz7WywrtUnSxOHhlal53gG9rE7r86LFUt5zBFe/mIs=
-20251106081846.sql h1:jp91Bf5bxGXMiUB1VIuN6y768vb2iWwow44WfCE5J5k=
-20251106082844.sql h1:RHYzRO4G1fSWwf+xc/3QezZ/Iil67cZPIgNpNz3TNhQ=
-20251106090021.sql h1:dFDk6mq+zjbYWmfWIrHf9DiKvvoXHjrr0++zssMTWP8=
-20251106144745.sql h1:aHcr23iBFqCHer5D/SsPMXBCLjGqUYvWYfRU8jSJgIw=
-20251107012049.sql h1:hu/7NHhnAkT4xK0RNtqmMDdH1Bo5EZbl7itDRjiCT+g=
-20251107064812.sql h1:sfCXDQYnMf0ddrQ9oYljWJLLSt9NJjJV6o8VS3p7aZE=
-20251107064937.sql h1:DlYGJ9LZFwZyR7jBP5zaGB128aIc4HAixBKPYCz9EkY=
+20251106050412.sql h1:1002KYtHd8AwrQTMewbs/PPHDylHDghigE/3S7PVdMA=
+20251106063418.sql h1:jPW/gBnbFl4RO39lQ0ZMDtYA6xbhyD6CgQupT50HmaY=
+20251106071906.sql h1:leYGKxR3EQn794aOehf0sd/ZPmOnvBMZPy5/anGmRB4=
+20251106073157.sql h1:KASMzjjjk5UB7Zj8lCRtM1utc4ZnDjlnpZbtTe3vONE=
+20251106074218.sql h1:Z5q5deOvLaZDPhiVTN9st3/s56RepBa2YOyrMXBdj4A=
+20251106081846.sql h1:P+VsWwhGt60adDIZuE/Aa38JVp/yX1rnsdpXpxASodw=
+20251106082844.sql h1:Dmi5A8i9frQZvdXYPwc7f8CisZtBH8liSXq1rI6z1iM=
+20251106090021.sql h1:4JwdKgO8T46YhyWVJUxpRIwudBDlG8QN1brSOYmgQ20=
+20251106144745.sql h1:nqnQCzGrVJaq8ilOEOGXeRUL1dolj+OPWKuP8A92FRA=
+20251107012049.sql h1:Pff4UqltGS3clSlGr0qq8CQM56L29wyxY0FC/N/YAhU=
+20251107064812.sql h1:jjpcAi0B/geEOKWmmR6+1UhWMhjstWhWQcz9lUWrtTY=
+20251107064937.sql h1:1nPu0THBf+YquFIJSE4pc1dA7r3EydH92cpp26ozysw=
+20251107071420.sql h1:Q+e+OqjdiuK/sghDQ5NxjU+u2zYl+vh/eRBlUz9Idhg=
+20251107074318.sql h1:VbOWMw2rClEWgMnDSejXPqXkFoQ4odVsHn3/UAEiCYA=
+20251107075050.sql h1:ZZaKJEWXIJ94/0/2Gzzz+HXjmebEs5eP8iUIot26/c8=
+20251107080604.sql h1:aq+tINa0ULCZlJcUK2jaeGh6rRH4jJz3e2NrK47m0Ec=
+20251107081830.sql h1:Bl9kniyLWeMqd3nrvgCgiUpdcJWp8qX1F41JAM1WbiE=
diff --git a/internal/domain/main-entities/device/dto.go b/internal/domain/main-entities/device/dto.go
index 1c874576..36e90a0c 100644
--- a/internal/domain/main-entities/device/dto.go
+++ b/internal/domain/main-entities/device/dto.go
@@ -8,11 +8,11 @@ import (
 )
 
 type CreateDto struct {
-	Code     string  `json:"code" validate:"maxLength=10"`
-	Name     string  `json:"name" validate:"maxLength=50"`
-	Uom_Code string  `json:"uom_code" validate:"maxLength=10"`
-	Infra_Id *uint16 `json:"infra_id"`
-	Item_Id  *uint   `json:"item_id"`
+	Code       string  `json:"code" validate:"maxLength=10"`
+	Name       string  `json:"name" validate:"maxLength=50"`
+	Uom_Code   string  `json:"uom_code" validate:"maxLength=10"`
+	Infra_Code *string `json:"infra_code"`
+	Item_Code  *string `json:"item_code"`
 }
 
 type ReadListDto struct {
@@ -32,17 +32,18 @@ type FilterDto struct {
 }
 
 type ReadDetailDto struct {
-	Id   uint16  `json:"id"`
+	Id   *uint16 `json:"id"`
 	Code *string `json:"code"`
 }
 
 type UpdateDto struct {
-	Id uint `json:"id"`
+	Id *uint `json:"id"`
 	CreateDto
 }
 
 type DeleteDto struct {
-	Id uint `json:"id"`
+	Id   *uint   `json:"id"`
+	Code *string `json:"code"`
 }
 
 type MetaDto struct {
diff --git a/internal/domain/main-entities/device/entity.go b/internal/domain/main-entities/device/entity.go
index ca54c08d..c68b7c3e 100644
--- a/internal/domain/main-entities/device/entity.go
+++ b/internal/domain/main-entities/device/entity.go
@@ -14,7 +14,9 @@ type Device struct {
 	Uom_Code   string     `json:"uom_code" gorm:"size:10"`
 	Uom        *eu.Uom    `json:"uom,omitempty" gorm:"foreignKey:Uom_Code;references:Code"`
 	Infra_Id   *uint16    `json:"infra_id"`
+	Infra_Code *string    `json:"infra_code" gorm:"size:10"`
 	Infra      *ein.Infra `json:"infra,omitempty" gorm:"foreignKey:Infra_Id;references:Id"`
 	Item_Id    *uint      `json:"item_id"`
+	Item_Code  *string    `json:"item_code" gorm:"size:50"`
 	Item       *ei.Item   `json:"item,omitempty" gorm:"foreignKey:Item_Id;references:Id"`
 }
diff --git a/internal/domain/main-entities/infra/dto.go b/internal/domain/main-entities/infra/dto.go
index de566fad..28ff8d93 100644
--- a/internal/domain/main-entities/infra/dto.go
+++ b/internal/domain/main-entities/infra/dto.go
@@ -9,15 +9,15 @@ import (
 )
 
 type CreateDto struct {
-	Code             string             `json:"code" validate:"maxLength=10"`
-	Name             string             `json:"name" validate:"maxLength=50"`
-	InfraGroup_Code  ero.InfraGroupCode `json:"infraGroup_code" validate:"maxLength=15"`
-	Parent_Id        *uint16            `json:"parent_id"`
-	Item_Id          *uint              `json:"item_id"`
-	Unit_Id          *uint16            `json:"unit_id"`
-	Specialist_Id    *uint16            `json:"specialist_id"`
-	Subspecialist_Id *uint16            `json:"subspecialist_id"`
-	Infra_Id         *uint16            `json:"-"` // for room
+	Code               string             `json:"code" validate:"maxLength=10"`
+	Name               string             `json:"name" validate:"maxLength=50"`
+	InfraGroup_Code    ero.InfraGroupCode `json:"infraGroup_code" validate:"maxLength=15"`
+	Parent_Code        *string            `json:"parent_code"`
+	Item_Id            *uint              `json:"-"`
+	Unit_Code          *string            `json:"unit_code"`
+	Specialist_Code    *string            `json:"specialist_code"`
+	Subspecialist_Code *string            `json:"subspecialist_code"`
+	Infra_Code         *string            `json:"infra_code"` // for room
 }
 
 type ReadListDto struct {
@@ -32,24 +32,25 @@ type FilterDto struct {
 	Code            string             `json:"code"`
 	Name            string             `json:"name"`
 	InfraGroup_Code ero.InfraGroupCode `json:"infraGroup-code"`
-	Parent_Id       *uint16            `json:"parent-id"`
-	Item_Id         *uint              `json:"item-id"`
+	Parent_Code     *string            `json:"parent-code"`
+	Item_Id         *string            `json:"item-code"`
 	Search          string             `json:"search" gormhelper:"searchColumns=Code,Name"`
 }
 
 type ReadDetailDto struct {
-	Id      uint16  `json:"id"`
-	Code    *string `json:"code"`
-	Item_Id *uint   `json:"item_id"`
+	Id        *uint16 `json:"id"`
+	Code      *string `json:"code"`
+	Item_Code *string `json:"item_code"`
 }
 
 type UpdateDto struct {
-	Id uint16 `json:"id"`
+	Id *uint16 `json:"id"`
 	CreateDto
 }
 
 type DeleteDto struct {
-	Id uint16 `json:"id"`
+	Id   *uint16 `json:"id"`
+	Code *string `json:"code"`
 }
 
 type MetaDto struct {
@@ -63,10 +64,10 @@ type ResponseDto struct {
 	Code            string             `json:"code"`
 	Name            string             `json:"name"`
 	InfraGroup_Code ero.InfraGroupCode `json:"infraGroup_code"`
-	Parent_Id       *uint16            `json:"parent_id"`
+	Parent_Code     *string            `json:"parent_code"`
 	Parent          *Infra             `json:"parent,omitempty"`
 	Childrens       []Infra            `json:"childrens,omitempty"`
-	Item_Id         *uint              `json:"item_id"`
+	Item_Code       *string            `json:"item_code"`
 	Item            *ei.Item           `json:"item,omitempty"`
 	Rooms           []erb.Basic        `json:"rooms,omitempty"`
 }
@@ -76,10 +77,10 @@ func (d Infra) ToResponse() ResponseDto {
 		Code:            d.Code,
 		Name:            d.Name,
 		InfraGroup_Code: d.InfraGroup_Code,
-		Parent_Id:       d.Parent_Id,
+		Parent_Code:     d.Parent_Code,
 		Parent:          d.Parent,
 		Childrens:       d.Childrens,
-		Item_Id:         d.Item_Id,
+		Item_Code:       d.Item_Code,
 		Item:            d.Item,
 		Rooms:           d.Rooms,
 	}
diff --git a/internal/domain/main-entities/infra/entity.go b/internal/domain/main-entities/infra/entity.go
index 3d8c6f99..dfc19e3d 100644
--- a/internal/domain/main-entities/infra/entity.go
+++ b/internal/domain/main-entities/infra/entity.go
@@ -3,6 +3,7 @@ package infra
 import (
 	ecore "simrs-vx/internal/domain/base-entities/core"
 	ei "simrs-vx/internal/domain/main-entities/item"
+
 	erb "simrs-vx/internal/domain/main-entities/room/base"
 
 	ero "simrs-vx/internal/domain/references/organization"
@@ -10,13 +11,15 @@ import (
 
 type Infra struct {
 	ecore.SmallMain                    // adjust this according to the needs
-	Code            string             `json:"code" gorm:"unique;size:10"`
+	Code            string             `json:"code" gorm:"uniqueIndex;size:10"`
 	Name            string             `json:"name" gorm:"size:50"`
 	InfraGroup_Code ero.InfraGroupCode `json:"infraGroup_code" gorm:"size:15"`
 	Parent_Id       *uint16            `json:"parent_id"`
+	Parent_Code     *string            `json:"parent_code" gorm:"size:10"`
 	Parent          *Infra             `json:"parent" gorm:"foreignKey:Parent_Id;references:Id"`
 	Childrens       []Infra            `json:"childrens" gorm:"foreignKey:Parent_Id"` // may need references to self
 	Item_Id         *uint              `json:"item_id"`
+	Item_Code       *string            `json:"item_code" gorm:"size:50"`
 	Item            *ei.Item           `json:"item,omitempty" gorm:"foreignKey:Item_Id;references:Id"`
-	Rooms           []erb.Basic        `json:"rooms" gorm:"foreignKey:Infra_Id"`
+	Rooms           []erb.Basic        `json:"rooms" gorm:"foreignKey:Infra_Code;references:Code"`
 }
diff --git a/internal/domain/main-entities/item/dto.go b/internal/domain/main-entities/item/dto.go
index 22be4c1a..f20ce217 100644
--- a/internal/domain/main-entities/item/dto.go
+++ b/internal/domain/main-entities/item/dto.go
@@ -11,7 +11,7 @@ type CreateDto struct {
 	Name           string            `json:"name" validate:"maxLength=100"`
 	ItemGroup_Code ero.ItemGroupCode `json:"itemGroup_code" validate:"maxLength=10"`
 	Uom_Code       *string           `json:"uom_code" validate:"maxLength=10"`
-	Infra_Id       *uint16           `json:"infra_id"`
+	Infra_Code     *string           `json:"infra_code"`
 	Stock          *int              `json:"stock"`
 }
 
@@ -27,23 +27,24 @@ type FilterDto struct {
 	Name           string            `json:"name"`
 	ItemGroup_Code ero.ItemGroupCode `json:"itemGroup-code"`
 	Uom_Code       *string           `json:"uom-code"`
-	Infra_Id       *uint16           `json:"infra-id"`
+	Infra_Code     *string           `json:"infra-code"`
 	Stock          *int              `json:"stock"`
 	Search         string            `json:"search" gormhelper:"searchColumns=Code,Name"`
 }
 
 type ReadDetailDto struct {
-	Id   uint16  `json:"id"`
+	Id   *uint16 `json:"id"`
 	Code *string `json:"code"`
 }
 
 type UpdateDto struct {
-	Id uint `json:"id"`
+	Id *uint `json:"id"`
 	CreateDto
 }
 
 type DeleteDto struct {
-	Id uint `json:"id"`
+	Id   *uint   `json:"id"`
+	Code *string `json:"code"`
 }
 
 type MetaDto struct {
@@ -59,7 +60,7 @@ type ResponseDto struct {
 	ItemGroup_Code ero.ItemGroupCode `json:"itemGroup_code"`
 	Uom_Code       *string           `json:"uom_code"`
 	Uom            *eu.Uom           `json:"uom,omitempty"`
-	Infra_Id       *uint16           `json:"infra_id"`
+	Infra_Code     *string           `json:"infra_code"`
 	Stock          *int              `json:"stock"`
 }
 
@@ -70,7 +71,7 @@ func (d Item) ToResponse() ResponseDto {
 		ItemGroup_Code: d.ItemGroup_Code,
 		Uom_Code:       d.Uom_Code,
 		Uom:            d.Uom,
-		Infra_Id:       d.Infra_Id,
+		Infra_Code:     d.Infra_Code,
 		Stock:          d.Stock,
 	}
 	resp.Main = d.Main
diff --git a/internal/domain/main-entities/item/entity.go b/internal/domain/main-entities/item/entity.go
index e0ff4e21..406c57e6 100644
--- a/internal/domain/main-entities/item/entity.go
+++ b/internal/domain/main-entities/item/entity.go
@@ -15,5 +15,6 @@ type Item struct {
 	Uom_Code       *string           `json:"uom_code" gorm:"size:10"`
 	Uom            *eu.Uom           `json:"uom,omitempty" gorm:"foreignKey:Uom_Code;references:Code"`
 	Infra_Id       *uint16           `json:"infra_id"`
+	Infra_Code     *string           `json:"infra_code" gorm:"size:10"`
 	Stock          *int              `json:"stock"`
 }
diff --git a/internal/domain/main-entities/material/dto.go b/internal/domain/main-entities/material/dto.go
index 18a93723..fbedbf43 100644
--- a/internal/domain/main-entities/material/dto.go
+++ b/internal/domain/main-entities/material/dto.go
@@ -8,12 +8,12 @@ import (
 )
 
 type CreateDto struct {
-	Code     string  `json:"code" validate:"maxLength=10"`
-	Name     string  `json:"name" validate:"maxLength=50"`
-	Uom_Code string  `json:"uom_code" validate:"maxLength=10"`
-	Infra_Id *uint16 `json:"infra_id"`
-	Stock    *int    `json:"stock"`
-	Item_Id  *uint   `json:"item_id"`
+	Code       string  `json:"code" validate:"maxLength=10"`
+	Name       string  `json:"name" validate:"maxLength=50"`
+	Uom_Code   string  `json:"uom_code" validate:"maxLength=10"`
+	Infra_Code *string `json:"infra_code"`
+	Stock      *int    `json:"stock"`
+	Item_Code  *string `json:"item_code"`
 }
 
 type ReadListDto struct {
@@ -24,28 +24,29 @@ type ReadListDto struct {
 }
 
 type FilterDto struct {
-	Code     string  `json:"code"`
-	Name     string  `json:"name"`
-	Uom_Code string  `json:"uom-code"`
-	Infra_Id *uint16 `json:"infra-id"`
-	Stock    *int    `json:"stock"`
-	Item_Id  *uint   `json:"item-id"`
-	Search   string  `json:"search" gormhelper:"searchColumns=Code,Name"`
+	Code       string  `json:"code"`
+	Name       string  `json:"name"`
+	Uom_Code   string  `json:"uom-code"`
+	Infra_Code *string `json:"infra-code"`
+	Stock      *int    `json:"stock"`
+	Item_Code  *string `json:"item-code"`
+	Search     string  `json:"search" gormhelper:"searchColumns=Code,Name"`
 }
 
 type ReadDetailDto struct {
-	Id      uint16  `json:"id"`
+	Id      *uint16 `json:"id"`
 	Code    *string `json:"code"`
 	Item_Id *uint   `json:"item_id"`
 }
 
 type UpdateDto struct {
-	Id uint `json:"id"`
+	Id *uint `json:"id"`
 	CreateDto
 }
 
 type DeleteDto struct {
-	Id uint `json:"id"`
+	Id   *uint   `json:"id"`
+	Code *string `json:"code"`
 }
 
 type MetaDto struct {
@@ -56,28 +57,28 @@ type MetaDto struct {
 
 type ResponseDto struct {
 	ecore.Main
-	Code     string     `json:"code"`
-	Name     string     `json:"name"`
-	Uom_Code string     `json:"uom_code"`
-	Uom      *eu.Uom    `json:"uom,omitempty"`
-	Infra_Id *uint16    `json:"infra_id"`
-	Infra    *ein.Infra `json:"infra,omitempty"`
-	Stock    *int       `json:"stock"`
-	Item_Id  *uint      `json:"item_id"`
-	Item     *ei.Item   `json:"item,omitempty"`
+	Code       string     `json:"code"`
+	Name       string     `json:"name"`
+	Uom_Code   string     `json:"uom_code"`
+	Uom        *eu.Uom    `json:"uom,omitempty"`
+	Infra_Code *string    `json:"infra_code"`
+	Infra      *ein.Infra `json:"infra,omitempty"`
+	Stock      *int       `json:"stock"`
+	Item_Code  *string    `json:"item_code"`
+	Item       *ei.Item   `json:"item,omitempty"`
 }
 
 func (d Material) ToResponse() ResponseDto {
 	resp := ResponseDto{
-		Code:     d.Code,
-		Name:     d.Name,
-		Uom_Code: d.Uom_Code,
-		Uom:      d.Uom,
-		Infra_Id: d.Infra_Id,
-		Infra:    d.Infra,
-		Stock:    d.Stock,
-		Item_Id:  d.Item_Id,
-		Item:     d.Item,
+		Code:       d.Code,
+		Name:       d.Name,
+		Uom_Code:   d.Uom_Code,
+		Uom:        d.Uom,
+		Infra_Code: d.Infra_Code,
+		Infra:      d.Infra,
+		Stock:      d.Stock,
+		Item_Code:  d.Item_Code,
+		Item:       d.Item,
 	}
 	resp.Main = d.Main
 	return resp
diff --git a/internal/domain/main-entities/material/entity.go b/internal/domain/main-entities/material/entity.go
index cdfd8bfd..50e6907e 100644
--- a/internal/domain/main-entities/material/entity.go
+++ b/internal/domain/main-entities/material/entity.go
@@ -14,8 +14,10 @@ type Material struct {
 	Uom_Code   string     `json:"uom_code" gorm:"size:10"`
 	Uom        *eu.Uom    `json:"uom,omitempty" gorm:"foreignKey:Uom_Code;references:Code"`
 	Infra_Id   *uint16    `json:"infra_id"`
+	Infra_Code *string    `json:"infra_code" gorm:"size:10"`
 	Infra      *ein.Infra `json:"infra,omitempty" gorm:"foreignKey:Infra_Id;references:Id"`
 	Stock      *int       `json:"stock"`
 	Item_Id    *uint      `json:"item_id"`
+	Item_Code  *string    `json:"item_code" gorm:"size:50"`
 	Item       *ei.Item   `json:"item,omitempty" gorm:"foreignKey:Item_Id;references:Id"`
 }
diff --git a/internal/domain/main-entities/medicine/dto.go b/internal/domain/main-entities/medicine/dto.go
index 82431fc1..945db1e5 100644
--- a/internal/domain/main-entities/medicine/dto.go
+++ b/internal/domain/main-entities/medicine/dto.go
@@ -16,9 +16,9 @@ type CreateDto struct {
 	MedicineMethod_Code *string `json:"medicineMethod_code" validate:"maxLength=10"`
 	Uom_Code            *string `json:"uom_code" validate:"maxLength=10"`
 	Dose                uint8   `json:"dose"`
-	Infra_Id            *uint16 `json:"infra_id"`
+	Infra_Code          *string `json:"infra_code"`
 	Stock               *int    `json:"stock"`
-	Item_Id             *uint   `json:"item_id"`
+	Item_Code           *string `json:"item_code"`
 }
 
 type ReadListDto struct {
@@ -35,25 +35,26 @@ type FilterDto struct {
 	MedicineMethod_Code *string `json:"medicineMethod-code"`
 	Uom_Code            *string `json:"uom-code"`
 	Dose                uint8   `json:"dose"`
-	Infra_Id            *uint16 `json:"infra-id"`
+	Infra_Code          *string `json:"infra-code"`
 	Stock               *int    `json:"stock"`
-	Item_Id             *uint   `json:"item-id"`
+	Item_Code           *string `json:"item-code"`
 	Search              string  `json:"search" gormhelper:"searchColumns=Code,Name"`
 }
 
 type ReadDetailDto struct {
-	Id      uint16  `json:"id"`
-	Code    *string `json:"code"`
-	Item_Id *uint   `json:"item_id"`
+	Id        *uint16 `json:"id"`
+	Code      *string `json:"code"`
+	Item_Code *uint   `json:"item_code"`
 }
 
 type UpdateDto struct {
-	Id uint `json:"id"`
+	Id *uint `json:"id"`
 	CreateDto
 }
 
 type DeleteDto struct {
-	Id uint `json:"id"`
+	Id   *uint   `json:"id"`
+	Code *string `json:"code"`
 }
 
 type MetaDto struct {
@@ -73,10 +74,10 @@ type ResponseDto struct {
 	Uom_Code            *string             `json:"uom_code"`
 	Uom                 *eu.Uom             `json:"uom"`
 	Dose                uint8               `json:"dose"`
-	Infra_Id            *uint16             `json:"infra_id"`
+	Infra_Code          *string             `json:"infra_code"`
 	Infra               *ein.Infra          `json:"infra,omitempty"`
 	Stock               *int                `json:"stock"`
-	Item_Id             *uint               `json:"item_id"`
+	Item_Code           *string             `json:"item_code"`
 	Item                *eit.Item           `json:"item,omitempty"`
 }
 
@@ -91,10 +92,10 @@ func (d Medicine) ToResponse() ResponseDto {
 		Uom_Code:            d.Uom_Code,
 		Uom:                 d.Uom,
 		Dose:                d.Dose,
-		Infra_Id:            d.Infra_Id,
+		Infra_Code:          d.Infra_Code,
 		Infra:               d.Infra,
 		Stock:               d.Stock,
-		Item_Id:             d.Item_Id,
+		Item_Code:           d.Item_Code,
 		Item:                d.Item,
 	}
 	resp.Main = d.Main
diff --git a/internal/domain/main-entities/medicine/entity.go b/internal/domain/main-entities/medicine/entity.go
index d538f496..bbcfec78 100644
--- a/internal/domain/main-entities/medicine/entity.go
+++ b/internal/domain/main-entities/medicine/entity.go
@@ -21,8 +21,10 @@ type Medicine struct {
 	Uom                 *eu.Uom             `json:"uom" gorm:"foreignKey:Uom_Code;references:Code"`
 	Dose                uint8               `json:"dose"`
 	Infra_Id            *uint16             `json:"infra_id"`
+	Infra_Code          *string             `json:"infra_code" gorm:"size:10"`
 	Infra               *ein.Infra          `json:"infra,omitempty" gorm:"foreignKey:Infra_Id;references:Id"`
 	Stock               *int                `json:"stock"`
 	Item_Id             *uint               `json:"item_id"`
+	Item_Code           *string             `json:"item_code" gorm:"size:50"`
 	Item                *eit.Item           `json:"item,omitempty" gorm:"foreignKey:Item_Id;references:Id"`
 }
diff --git a/internal/domain/main-entities/room/base/entity.go b/internal/domain/main-entities/room/base/entity.go
index 2ac690b6..d5651ac9 100644
--- a/internal/domain/main-entities/room/base/entity.go
+++ b/internal/domain/main-entities/room/base/entity.go
@@ -9,17 +9,13 @@ import (
 
 type Basic struct {
 	ecore.SmallMain                       // adjust this according to the needs
-	Infra_Id           *uint16            `json:"infra_id"`
 	Infra_Code         *string            `json:"infra_code" gorm:"size:10"`
-	Unit_Id            *uint16            `json:"unit_id"`
 	Unit_Code          *string            `json:"unit_code" gorm:"size:10"`
-	Unit               *eu.Unit           `json:"unit,omitempty" gorm:"foreignKey:Unit_Id"`
-	Specialist_Id      *uint16            `json:"specialist_id"`
+	Unit               *eu.Unit           `json:"unit,omitempty" gorm:"foreignKey:Unit_Code;references:Code"`
 	Specialist_Code    *string            `json:"specialist_code" gorm:"size:10"`
-	Specialist         *es.Specialist     `json:"specialist,omitempty" gorm:"foreignKey:Specialist_Id"`
-	Subspecialist_Id   *uint16            `json:"subspecialist_id"`
+	Specialist         *es.Specialist     `json:"specialist,omitempty" gorm:"foreignKey:Specialist_Code;references:Code"`
 	Subspecialist_Code *string            `json:"subspecialist_code" gorm:"size:10"`
-	Subspecialist      *ess.Subspecialist `json:"subspecialist,omitempty" gorm:"foreignKey:Subspecialist_Id"`
+	Subspecialist      *ess.Subspecialist `json:"subspecialist,omitempty" gorm:"foreignKey:Subspecialist_Code;references:Code"`
 }
 
 func (Basic) TableName() string {
diff --git a/internal/domain/main-entities/room/dto.go b/internal/domain/main-entities/room/dto.go
index 0ca2e8d4..2ff41c3a 100644
--- a/internal/domain/main-entities/room/dto.go
+++ b/internal/domain/main-entities/room/dto.go
@@ -9,10 +9,10 @@ import (
 )
 
 type CreateDto struct {
-	Infra_Id         *uint16 `json:"infra_id"`
-	Unit_Id          *uint16 `json:"unit_id"`
-	Specialist_Id    *uint16 `json:"specialist_id"`
-	Subspecialist_Id *uint16 `json:"subspecialist_id"`
+	Infra_Code         *string `json:"infra_code"`
+	Unit_Code          *string `json:"unit_code"`
+	Specialist_Code    *string `json:"specialist_code"`
+	Subspecialist_Code *string `json:"subspecialist_code"`
 }
 
 type ReadListDto struct {
@@ -22,10 +22,10 @@ type ReadListDto struct {
 }
 
 type FilterDto struct {
-	Infra_Id         *uint16 `json:"infra-id"`
-	Unit_Id          *uint16 `json:"unit-id"`
-	Specialist_Id    *uint16 `json:"specialist-id"`
-	Subspecialist_Id *uint16 `json:"subspecialist-id"`
+	Infra_Code         *string `json:"infra-code"`
+	Unit_Code          *string `json:"unit-code"`
+	Specialist_Code    *string `json:"specialist-code"`
+	Subspecialist_Code *string `json:"subspecialist-code"`
 }
 
 type ReadDetailDto struct {
@@ -49,26 +49,26 @@ type MetaDto struct {
 
 type ResponseDto struct {
 	ecore.SmallMain
-	Infra_Id         *uint16            `json:"infra_id"`
-	Infra            *ei.Infra          `json:"infra,omitempty"`
-	Unit_Id          *uint16            `json:"unit_id"`
-	Unit             *eu.Unit           `json:"unit,omitempty"`
-	Specialist_Id    *uint16            `json:"specialist_id"`
-	Specialist       *es.Specialist     `json:"specialist,omitempty"`
-	Subspecialist_Id *uint16            `json:"subspecialist_id"`
-	Subspecialist    *ess.Subspecialist `json:"subspecialist,omitempty"`
+	Infra_Code         *string            `json:"infra_code"`
+	Infra              *ei.Infra          `json:"infra,omitempty"`
+	Unit_Code          *string            `json:"unit_code"`
+	Unit               *eu.Unit           `json:"unit,omitempty"`
+	Specialist_Code    *string            `json:"specialist_code"`
+	Specialist         *es.Specialist     `json:"specialist,omitempty"`
+	Subspecialist_Code *string            `json:"subspecialist_code"`
+	Subspecialist      *ess.Subspecialist `json:"subspecialist,omitempty"`
 }
 
 func (d Room) ToResponse() ResponseDto {
 	resp := ResponseDto{
-		Infra_Id:         d.Infra_Id,
-		Infra:            d.Infra,
-		Unit_Id:          d.Unit_Id,
-		Unit:             d.Unit,
-		Specialist_Id:    d.Specialist_Id,
-		Specialist:       d.Specialist,
-		Subspecialist_Id: d.Subspecialist_Id,
-		Subspecialist:    d.Subspecialist,
+		Infra_Code:         d.Infra_Code,
+		Infra:              d.Infra,
+		Unit_Code:          d.Unit_Code,
+		Unit:               d.Unit,
+		Specialist_Code:    d.Specialist_Code,
+		Specialist:         d.Specialist,
+		Subspecialist_Code: d.Subspecialist_Code,
+		Subspecialist:      d.Subspecialist,
 	}
 	resp.SmallMain = d.SmallMain
 	return resp
diff --git a/internal/domain/main-entities/room/entity.go b/internal/domain/main-entities/room/entity.go
index 346c7741..49fb8cc6 100644
--- a/internal/domain/main-entities/room/entity.go
+++ b/internal/domain/main-entities/room/entity.go
@@ -7,5 +7,5 @@ import (
 
 type Room struct {
 	ebase.Basic
-	Infra *ei.Infra `json:"infra,omitempty" gorm:"foreignKey:Infra_Id"`
+	Infra *ei.Infra `json:"infra,omitempty" gorm:"foreignKey:Infra_Code;references:Code"`
 }
diff --git a/internal/interface/main-handler/device/handler.go b/internal/interface/main-handler/device/handler.go
index 1a3cb18d..c827f20f 100644
--- a/internal/interface/main-handler/device/handler.go
+++ b/internal/interface/main-handler/device/handler.go
@@ -33,19 +33,19 @@ func (obj myBase) GetList(w http.ResponseWriter, r *http.Request) {
 }
 
 func (obj myBase) GetDetail(w http.ResponseWriter, r *http.Request) {
-	id := rw.ValidateInt(w, "id", r.PathValue("id"))
-	if id <= 0 {
+	code := rw.ValidateString(w, "code", r.PathValue("code"))
+	if code == "" {
 		return
 	}
 	dto := e.ReadDetailDto{}
-	dto.Id = uint16(id)
+	dto.Code = &code
 	res, err := u.ReadDetail(dto)
 	rw.DataResponse(w, res, err)
 }
 
 func (obj myBase) Update(w http.ResponseWriter, r *http.Request) {
-	id := rw.ValidateInt(w, "id", r.PathValue("id"))
-	if id <= 0 {
+	code := rw.ValidateString(w, "code", r.PathValue("code"))
+	if code == "" {
 		return
 	}
 
@@ -53,19 +53,19 @@ func (obj myBase) Update(w http.ResponseWriter, r *http.Request) {
 	if res := rw.ValidateStructByIOR(w, r.Body, &dto); !res {
 		return
 	}
-	dto.Id = uint(id)
+	dto.Code = code
 	res, err := u.Update(dto)
 	rw.DataResponse(w, res, err)
 }
 
 func (obj myBase) Delete(w http.ResponseWriter, r *http.Request) {
-	id := rw.ValidateInt(w, "id", r.PathValue("id"))
-	if id <= 0 {
+	code := rw.ValidateString(w, "code", r.PathValue("code"))
+	if code == "" {
 		return
 	}
 
 	dto := e.DeleteDto{}
-	dto.Id = uint(id)
+	dto.Code = &code
 	res, err := u.Delete(dto)
 	rw.DataResponse(w, res, err)
 }
diff --git a/internal/interface/main-handler/infra/handler.go b/internal/interface/main-handler/infra/handler.go
index 71a8f1ec..fedccf48 100644
--- a/internal/interface/main-handler/infra/handler.go
+++ b/internal/interface/main-handler/infra/handler.go
@@ -33,19 +33,19 @@ func (obj myBase) GetList(w http.ResponseWriter, r *http.Request) {
 }
 
 func (obj myBase) GetDetail(w http.ResponseWriter, r *http.Request) {
-	id := rw.ValidateInt(w, "id", r.PathValue("id"))
-	if id <= 0 {
+	code := rw.ValidateString(w, "code", r.PathValue("code"))
+	if code == "" {
 		return
 	}
 	dto := e.ReadDetailDto{}
-	dto.Id = uint16(id)
+	dto.Code = &code
 	res, err := u.ReadDetail(dto)
 	rw.DataResponse(w, res, err)
 }
 
 func (obj myBase) Update(w http.ResponseWriter, r *http.Request) {
-	id := rw.ValidateInt(w, "id", r.PathValue("id"))
-	if id <= 0 {
+	code := rw.ValidateString(w, "code", r.PathValue("code"))
+	if code == "" {
 		return
 	}
 
@@ -53,19 +53,19 @@ func (obj myBase) Update(w http.ResponseWriter, r *http.Request) {
 	if res := rw.ValidateStructByIOR(w, r.Body, &dto); !res {
 		return
 	}
-	dto.Id = uint16(id)
+	dto.Code = code
 	res, err := u.Update(dto)
 	rw.DataResponse(w, res, err)
 }
 
 func (obj myBase) Delete(w http.ResponseWriter, r *http.Request) {
-	id := rw.ValidateInt(w, "id", r.PathValue("id"))
-	if id <= 0 {
+	code := rw.ValidateString(w, "code", r.PathValue("code"))
+	if code == "" {
 		return
 	}
 
 	dto := e.DeleteDto{}
-	dto.Id = uint16(id)
+	dto.Code = &code
 	res, err := u.Delete(dto)
 	rw.DataResponse(w, res, err)
 }
diff --git a/internal/interface/main-handler/item/handler.go b/internal/interface/main-handler/item/handler.go
index 124be7ef..a786e86b 100644
--- a/internal/interface/main-handler/item/handler.go
+++ b/internal/interface/main-handler/item/handler.go
@@ -33,19 +33,19 @@ func (obj myBase) GetList(w http.ResponseWriter, r *http.Request) {
 }
 
 func (obj myBase) GetDetail(w http.ResponseWriter, r *http.Request) {
-	id := rw.ValidateInt(w, "id", r.PathValue("id"))
-	if id <= 0 {
+	code := rw.ValidateString(w, "code", r.PathValue("code"))
+	if code == "" {
 		return
 	}
 	dto := e.ReadDetailDto{}
-	dto.Id = uint16(id)
+	dto.Code = &code
 	res, err := u.ReadDetail(dto)
 	rw.DataResponse(w, res, err)
 }
 
 func (obj myBase) Update(w http.ResponseWriter, r *http.Request) {
-	id := rw.ValidateInt(w, "id", r.PathValue("id"))
-	if id <= 0 {
+	code := rw.ValidateString(w, "code", r.PathValue("code"))
+	if code == "" {
 		return
 	}
 
@@ -53,19 +53,19 @@ func (obj myBase) Update(w http.ResponseWriter, r *http.Request) {
 	if res := rw.ValidateStructByIOR(w, r.Body, &dto); !res {
 		return
 	}
-	dto.Id = uint(id)
+	dto.Code = code
 	res, err := u.Update(dto)
 	rw.DataResponse(w, res, err)
 }
 
 func (obj myBase) Delete(w http.ResponseWriter, r *http.Request) {
-	id := rw.ValidateInt(w, "id", r.PathValue("id"))
-	if id <= 0 {
+	code := rw.ValidateString(w, "code", r.PathValue("code"))
+	if code == "" {
 		return
 	}
 
 	dto := e.DeleteDto{}
-	dto.Id = uint(id)
+	dto.Code = &code
 	res, err := u.Delete(dto)
 	rw.DataResponse(w, res, err)
 }
diff --git a/internal/interface/main-handler/main-handler.go b/internal/interface/main-handler/main-handler.go
index e974564b..6d0548e9 100644
--- a/internal/interface/main-handler/main-handler.go
+++ b/internal/interface/main-handler/main-handler.go
@@ -304,22 +304,22 @@ func SetRoutes() http.Handler {
 	hc.RegCrudByCode(r, "/v1/subspecialist", subspecialist.O)
 	hc.RegCrudByCode(r, "/v1/specialist-position", specialistposition.O)
 	hc.RegCrudByCode(r, "/v1/subspecialist-position", subspecialistposition.O)
+	hc.RegCrudByCode(r, "/v1/infra", infra.O)
 	hc.RegCrud(r, "/v1/pharmacy-company", pharmacycompany.O)
 	hc.RegCrud(r, "/v1/diagnose-src", diagnosesrc.O)
 	hc.RegCrud(r, "/v1/procedure-src", proceduresrc.O)
 	hc.RegCrud(r, "/v1/uom", uom.O)
-	hc.RegCrud(r, "/v1/item", item.O)
+	hc.RegCrudByCode(r, "/v1/item", item.O)
 	hc.RegCrud(r, "/v1/item-price", itemprice.O)
-	hc.RegCrud(r, "/v1/infra", infra.O)
 	hc.RegCrud(r, "/v1/medicine-group", medicinegroup.O)
 	hc.RegCrud(r, "/v1/medicine-method", medicinemethod.O)
 	hc.RegCrud(r, "/v1/mcu-src-category", mcusrccategory.O)
 	hc.RegCrud(r, "/v1/mcu-src", mcusrc.O)
 	hc.RegCrud(r, "/v1/ethnic", ethnic.O)
 	hc.RegCrud(r, "/v1/insurance-company", insurancecompany.O)
-	hc.RegCrud(r, "/v1/medicine", medicine.O)
-	hc.RegCrud(r, "/v1/device", device.O)
-	hc.RegCrud(r, "/v1/material", material.O)
+	hc.RegCrudByCode(r, "/v1/medicine", medicine.O)
+	hc.RegCrudByCode(r, "/v1/device", device.O)
+	hc.RegCrudByCode(r, "/v1/material", material.O)
 	hc.RegCrud(r, "/v1/doctor-fee", doctorfee.O)
 	hc.RegCrud(r, "/v1/medical-action-src", medicalactionsrc.O)
 	hc.RegCrud(r, "/v1/medical-action-src-item", medicalactionsrcitem.O)
diff --git a/internal/interface/main-handler/material/handler.go b/internal/interface/main-handler/material/handler.go
index 2b152625..10de8a92 100644
--- a/internal/interface/main-handler/material/handler.go
+++ b/internal/interface/main-handler/material/handler.go
@@ -33,19 +33,19 @@ func (obj myBase) GetList(w http.ResponseWriter, r *http.Request) {
 }
 
 func (obj myBase) GetDetail(w http.ResponseWriter, r *http.Request) {
-	id := rw.ValidateInt(w, "id", r.PathValue("id"))
-	if id <= 0 {
+	code := rw.ValidateString(w, "code", r.PathValue("code"))
+	if code == "" {
 		return
 	}
 	dto := e.ReadDetailDto{}
-	dto.Id = uint16(id)
+	dto.Code = &code
 	res, err := u.ReadDetail(dto)
 	rw.DataResponse(w, res, err)
 }
 
 func (obj myBase) Update(w http.ResponseWriter, r *http.Request) {
-	id := rw.ValidateInt(w, "id", r.PathValue("id"))
-	if id <= 0 {
+	code := rw.ValidateString(w, "code", r.PathValue("code"))
+	if code == "" {
 		return
 	}
 
@@ -53,19 +53,19 @@ func (obj myBase) Update(w http.ResponseWriter, r *http.Request) {
 	if res := rw.ValidateStructByIOR(w, r.Body, &dto); !res {
 		return
 	}
-	dto.Id = uint(id)
+	dto.Code = code
 	res, err := u.Update(dto)
 	rw.DataResponse(w, res, err)
 }
 
 func (obj myBase) Delete(w http.ResponseWriter, r *http.Request) {
-	id := rw.ValidateInt(w, "id", r.PathValue("id"))
-	if id <= 0 {
+	code := rw.ValidateString(w, "code", r.PathValue("code"))
+	if code == "" {
 		return
 	}
 
 	dto := e.DeleteDto{}
-	dto.Id = uint(id)
+	dto.Code = &code
 	res, err := u.Delete(dto)
 	rw.DataResponse(w, res, err)
 }
diff --git a/internal/interface/main-handler/medicine/handler.go b/internal/interface/main-handler/medicine/handler.go
index 5a5b28e0..b6a3f185 100644
--- a/internal/interface/main-handler/medicine/handler.go
+++ b/internal/interface/main-handler/medicine/handler.go
@@ -33,19 +33,19 @@ func (obj myBase) GetList(w http.ResponseWriter, r *http.Request) {
 }
 
 func (obj myBase) GetDetail(w http.ResponseWriter, r *http.Request) {
-	id := rw.ValidateInt(w, "id", r.PathValue("id"))
-	if id <= 0 {
+	code := rw.ValidateString(w, "code", r.PathValue("code"))
+	if code == "" {
 		return
 	}
 	dto := e.ReadDetailDto{}
-	dto.Id = uint16(id)
+	dto.Code = &code
 	res, err := u.ReadDetail(dto)
 	rw.DataResponse(w, res, err)
 }
 
 func (obj myBase) Update(w http.ResponseWriter, r *http.Request) {
-	id := rw.ValidateInt(w, "id", r.PathValue("id"))
-	if id <= 0 {
+	code := rw.ValidateString(w, "code", r.PathValue("code"))
+	if code == "" {
 		return
 	}
 
@@ -53,19 +53,19 @@ func (obj myBase) Update(w http.ResponseWriter, r *http.Request) {
 	if res := rw.ValidateStructByIOR(w, r.Body, &dto); !res {
 		return
 	}
-	dto.Id = uint(id)
+	dto.Code = code
 	res, err := u.Update(dto)
 	rw.DataResponse(w, res, err)
 }
 
 func (obj myBase) Delete(w http.ResponseWriter, r *http.Request) {
-	id := rw.ValidateInt(w, "id", r.PathValue("id"))
-	if id <= 0 {
+	code := rw.ValidateString(w, "code", r.PathValue("code"))
+	if code == "" {
 		return
 	}
 
 	dto := e.DeleteDto{}
-	dto.Id = uint(id)
+	dto.Code = &code
 	res, err := u.Delete(dto)
 	rw.DataResponse(w, res, err)
 }
diff --git a/internal/use-case/main-use-case/device/case.go b/internal/use-case/main-use-case/device/case.go
index ff548a4b..126dff9f 100644
--- a/internal/use-case/main-use-case/device/case.go
+++ b/internal/use-case/main-use-case/device/case.go
@@ -169,7 +169,7 @@ func ReadDetail(input e.ReadDetailDto) (*d.Data, error) {
 }
 
 func Update(input e.UpdateDto) (*d.Data, error) {
-	rdDto := e.ReadDetailDto{Id: uint16(input.Id)}
+	rdDto := e.ReadDetailDto{Code: &input.Code}
 	var data *e.Device
 	var err error
 
@@ -225,7 +225,7 @@ func Update(input e.UpdateDto) (*d.Data, error) {
 }
 
 func Delete(input e.DeleteDto) (*d.Data, error) {
-	rdDto := e.ReadDetailDto{Id: uint16(input.Id)}
+	rdDto := e.ReadDetailDto{Code: input.Code}
 	var data *e.Device
 	var err error
 
diff --git a/internal/use-case/main-use-case/device/helper.go b/internal/use-case/main-use-case/device/helper.go
index 08964464..21956cc5 100644
--- a/internal/use-case/main-use-case/device/helper.go
+++ b/internal/use-case/main-use-case/device/helper.go
@@ -30,8 +30,8 @@ func setData[T *e.CreateDto | *e.UpdateDto](input T, data *e.Device) {
 	data.Code = inputSrc.Code
 	data.Name = inputSrc.Name
 	data.Uom_Code = inputSrc.Uom_Code
-	data.Item_Id = inputSrc.Item_Id
-	data.Infra_Id = inputSrc.Infra_Id
+	data.Item_Code = inputSrc.Item_Code
+	data.Infra_Code = inputSrc.Infra_Code
 }
 
 func createItem(input *e.CreateDto, event *pl.Event, tx *gorm.DB) error {
@@ -40,13 +40,13 @@ func createItem(input *e.CreateDto, event *pl.Event, tx *gorm.DB) error {
 		Name:           input.Name,
 		ItemGroup_Code: ero.ITGCDevice,
 		Uom_Code:       &input.Uom_Code,
-		Infra_Id:       input.Infra_Id,
+		Infra_Code:     input.Infra_Code,
 	}
 	item, err := ui.CreateData(itemCreate, event, tx)
 	if err != nil {
 		return err
 	}
 
-	input.Item_Id = &item.Id
+	input.Item_Code = &item.Code
 	return nil
 }
diff --git a/internal/use-case/main-use-case/device/lib.go b/internal/use-case/main-use-case/device/lib.go
index 664db248..63c8cedb 100644
--- a/internal/use-case/main-use-case/device/lib.go
+++ b/internal/use-case/main-use-case/device/lib.go
@@ -81,6 +81,13 @@ func ReadDetailData(input e.ReadDetailDto, event *pl.Event, dbx ...*gorm.DB) (*e
 		tx = dg.I
 	}
 
+	if input.Code != nil {
+		tx = tx.Where("\"Code\" = ?", *input.Code)
+	}
+	if input.Id != nil {
+		tx = tx.Where("\"Id\" = ?", *input.Id)
+	}
+
 	if err := tx.First(&data, input.Id).Error; err != nil {
 		if processedErr := pu.HandleReadError(err, event, source, input.Id, data); processedErr != nil {
 			return nil, processedErr
diff --git a/internal/use-case/main-use-case/division/lib.go b/internal/use-case/main-use-case/division/lib.go
index 62a10d5b..0b45ba11 100644
--- a/internal/use-case/main-use-case/division/lib.go
+++ b/internal/use-case/main-use-case/division/lib.go
@@ -52,7 +52,7 @@ func ReadListData(input e.ReadListDto, event *pl.Event, dbx ...*gorm.DB) ([]e.Di
     		EXISTS (
         		SELECT 1
        		 	FROM "Division" c
-        		WHERE c."Parent_Id" = "Division"."Id"
+        		WHERE c."Parent_Code" = "Division"."Code"
     		)
 		`)
 	}
diff --git a/internal/use-case/main-use-case/infra/case.go b/internal/use-case/main-use-case/infra/case.go
index 7c227e8b..4771f3cb 100644
--- a/internal/use-case/main-use-case/infra/case.go
+++ b/internal/use-case/main-use-case/infra/case.go
@@ -38,12 +38,12 @@ func Create(input e.CreateDto) (*d.Data, error) {
 		}
 
 		if input.InfraGroup_Code == ero.IFGCRoom {
-			if input.Parent_Id == nil {
+			if input.Parent_Code == nil {
 				event.Status = "failed"
 				event.ErrInfo = pl.ErrorInfo{
 					Code:   "data-create-fail",
-					Detail: "parent_id is required",
-					Raw:    errors.New("parent_id is required"),
+					Detail: "parent_code is required",
+					Raw:    errors.New("parent_code is required"),
 				}
 				return pl.SetLogError(&event, input)
 
@@ -59,7 +59,7 @@ func Create(input e.CreateDto) (*d.Data, error) {
 		}
 
 		if input.InfraGroup_Code == ero.IFGCRoom {
-			input.Infra_Id = &data.Id
+			input.Infra_Code = &data.Code
 			if err := createRoom(&input, &event, tx); err != nil {
 				return err
 			}
diff --git a/internal/use-case/main-use-case/infra/helper.go b/internal/use-case/main-use-case/infra/helper.go
index 35388c85..2e6dc383 100644
--- a/internal/use-case/main-use-case/infra/helper.go
+++ b/internal/use-case/main-use-case/infra/helper.go
@@ -29,7 +29,7 @@ func setData[T *e.CreateDto | *e.UpdateDto](input T, data *e.Infra) {
 	data.Code = inputSrc.Code
 	data.Name = inputSrc.Name
 	data.InfraGroup_Code = inputSrc.InfraGroup_Code
-	data.Parent_Id = inputSrc.Parent_Id
+	data.Parent_Code = inputSrc.Parent_Code
 	data.Item_Id = inputSrc.Item_Id
 }
 
@@ -42,7 +42,7 @@ func createItem(input *e.CreateDto, event *pl.Event, tx *gorm.DB) error {
 			tmp := "unit"
 			return &tmp
 		}(),
-		Infra_Id: input.Parent_Id,
+		Infra_Code: input.Parent_Code,
 	}
 	item, err := ui.CreateData(itemCreate, event, tx)
 	if err != nil {
@@ -55,10 +55,10 @@ func createItem(input *e.CreateDto, event *pl.Event, tx *gorm.DB) error {
 
 func createRoom(input *e.CreateDto, event *pl.Event, tx *gorm.DB) error {
 	roomCreate := er.CreateDto{
-		Infra_Id:         input.Infra_Id,
-		Unit_Id:          input.Unit_Id,
-		Specialist_Id:    input.Specialist_Id,
-		Subspecialist_Id: input.Subspecialist_Id,
+		Infra_Code:         input.Infra_Code,
+		Unit_Code:          input.Unit_Code,
+		Specialist_Code:    input.Specialist_Code,
+		Subspecialist_Code: input.Subspecialist_Code,
 	}
 	_, err := ur.CreateData(roomCreate, event, tx)
 	if err != nil {
diff --git a/internal/use-case/main-use-case/infra/lib.go b/internal/use-case/main-use-case/infra/lib.go
index 234104bb..67062b31 100644
--- a/internal/use-case/main-use-case/infra/lib.go
+++ b/internal/use-case/main-use-case/infra/lib.go
@@ -52,7 +52,7 @@ func ReadListData(input e.ReadListDto, event *pl.Event, dbx ...*gorm.DB) ([]e.In
     		EXISTS (
         		SELECT 1
        		 	FROM "Infra" c
-        		WHERE c."Parent_Id" = "Infra"."Id"
+        		WHERE c."Parent_Code" = "Infra"."Code"
     		)
 		`)
 	}
@@ -91,6 +91,13 @@ func ReadDetailData(input e.ReadDetailDto, event *pl.Event, dbx ...*gorm.DB) (*e
 		tx = dg.I
 	}
 
+	if input.Code != nil {
+		tx = tx.Where("\"Code\" = ?", *input.Code)
+	}
+	if input.Id != nil {
+		tx = tx.Where("\"Id\" = ?", *input.Id)
+	}
+
 	tx = tx.Preload("Parent").
 		Preload("Childrens").
 		Preload("Item").
@@ -99,7 +106,7 @@ func ReadDetailData(input e.ReadDetailDto, event *pl.Event, dbx ...*gorm.DB) (*e
 		Preload("Rooms.Subspecialist").
 		Preload("Rooms.Unit")
 
-	if err := tx.First(&data, input.Id).Error; err != nil {
+	if err := tx.First(&data).Error; err != nil {
 		if processedErr := pu.HandleReadError(err, event, source, input.Id, data); processedErr != nil {
 			return nil, processedErr
 		}
diff --git a/internal/use-case/main-use-case/item/case.go b/internal/use-case/main-use-case/item/case.go
index 914d777f..58ce3213 100644
--- a/internal/use-case/main-use-case/item/case.go
+++ b/internal/use-case/main-use-case/item/case.go
@@ -166,7 +166,7 @@ func ReadDetail(input e.ReadDetailDto) (*d.Data, error) {
 }
 
 func Update(input e.UpdateDto) (*d.Data, error) {
-	rdDto := e.ReadDetailDto{Id: uint16(input.Id)}
+	rdDto := e.ReadDetailDto{Code: &input.Code}
 	var data *e.Item
 	var err error
 
@@ -222,7 +222,7 @@ func Update(input e.UpdateDto) (*d.Data, error) {
 }
 
 func Delete(input e.DeleteDto) (*d.Data, error) {
-	rdDto := e.ReadDetailDto{Id: uint16(input.Id)}
+	rdDto := e.ReadDetailDto{Code: input.Code}
 	var data *e.Item
 	var err error
 
diff --git a/internal/use-case/main-use-case/item/helper.go b/internal/use-case/main-use-case/item/helper.go
index 0ebfcd37..6f7e0c57 100644
--- a/internal/use-case/main-use-case/item/helper.go
+++ b/internal/use-case/main-use-case/item/helper.go
@@ -21,6 +21,6 @@ func setData[T *e.CreateDto | *e.UpdateDto](input T, data *e.Item) {
 	data.Name = inputSrc.Name
 	data.ItemGroup_Code = inputSrc.ItemGroup_Code
 	data.Uom_Code = inputSrc.Uom_Code
-	data.Infra_Id = inputSrc.Infra_Id
+	data.Infra_Code = inputSrc.Infra_Code
 	data.Stock = inputSrc.Stock
 }
diff --git a/internal/use-case/main-use-case/material/case.go b/internal/use-case/main-use-case/material/case.go
index 42346dc6..5f5cec55 100644
--- a/internal/use-case/main-use-case/material/case.go
+++ b/internal/use-case/main-use-case/material/case.go
@@ -169,7 +169,7 @@ func ReadDetail(input e.ReadDetailDto) (*d.Data, error) {
 }
 
 func Update(input e.UpdateDto) (*d.Data, error) {
-	rdDto := e.ReadDetailDto{Id: uint16(input.Id)}
+	rdDto := e.ReadDetailDto{Code: &input.Code}
 	var data *e.Material
 	var err error
 
@@ -225,7 +225,7 @@ func Update(input e.UpdateDto) (*d.Data, error) {
 }
 
 func Delete(input e.DeleteDto) (*d.Data, error) {
-	rdDto := e.ReadDetailDto{Id: uint16(input.Id)}
+	rdDto := e.ReadDetailDto{Code: input.Code}
 	var data *e.Material
 	var err error
 
diff --git a/internal/use-case/main-use-case/material/helper.go b/internal/use-case/main-use-case/material/helper.go
index 9cfefe27..ee415107 100644
--- a/internal/use-case/main-use-case/material/helper.go
+++ b/internal/use-case/main-use-case/material/helper.go
@@ -30,8 +30,8 @@ func setData[T *e.CreateDto | *e.UpdateDto](input T, data *e.Material) {
 	data.Name = inputSrc.Name
 	data.Uom_Code = inputSrc.Uom_Code
 	data.Stock = inputSrc.Stock
-	data.Item_Id = inputSrc.Item_Id
-	data.Infra_Id = inputSrc.Infra_Id
+	data.Item_Code = inputSrc.Item_Code
+	data.Infra_Code = inputSrc.Infra_Code
 }
 
 func createItem(input *e.CreateDto, event *pl.Event, tx *gorm.DB) error {
@@ -40,7 +40,7 @@ func createItem(input *e.CreateDto, event *pl.Event, tx *gorm.DB) error {
 		Name:           input.Name,
 		ItemGroup_Code: ero.ITGCMaterial,
 		Uom_Code:       &input.Uom_Code,
-		Infra_Id:       input.Infra_Id,
+		Infra_Code:     input.Infra_Code,
 		Stock:          input.Stock,
 	}
 	item, err := ui.CreateData(itemCreate, event, tx)
@@ -48,6 +48,6 @@ func createItem(input *e.CreateDto, event *pl.Event, tx *gorm.DB) error {
 		return err
 	}
 
-	input.Item_Id = &item.Id
+	input.Item_Code = &item.Code
 	return nil
 }
diff --git a/internal/use-case/main-use-case/medicine/case.go b/internal/use-case/main-use-case/medicine/case.go
index 5855d33c..3e5bee2d 100644
--- a/internal/use-case/main-use-case/medicine/case.go
+++ b/internal/use-case/main-use-case/medicine/case.go
@@ -169,7 +169,7 @@ func ReadDetail(input e.ReadDetailDto) (*d.Data, error) {
 }
 
 func Update(input e.UpdateDto) (*d.Data, error) {
-	rdDto := e.ReadDetailDto{Id: uint16(input.Id)}
+	rdDto := e.ReadDetailDto{Code: &input.Code}
 	var data *e.Medicine
 	var err error
 
@@ -225,7 +225,7 @@ func Update(input e.UpdateDto) (*d.Data, error) {
 }
 
 func Delete(input e.DeleteDto) (*d.Data, error) {
-	rdDto := e.ReadDetailDto{Id: uint16(input.Id)}
+	rdDto := e.ReadDetailDto{Code: input.Code}
 	var data *e.Medicine
 	var err error
 
diff --git a/internal/use-case/main-use-case/medicine/helper.go b/internal/use-case/main-use-case/medicine/helper.go
index 388be819..1cf35762 100644
--- a/internal/use-case/main-use-case/medicine/helper.go
+++ b/internal/use-case/main-use-case/medicine/helper.go
@@ -33,9 +33,9 @@ func setData[T *e.CreateDto | *e.UpdateDto](input T, data *e.Medicine) {
 	data.MedicineMethod_Code = inputSrc.MedicineMethod_Code
 	data.Uom_Code = inputSrc.Uom_Code
 	data.Dose = inputSrc.Dose
-	data.Infra_Id = inputSrc.Infra_Id
+	data.Infra_Code = inputSrc.Infra_Code
 	data.Stock = inputSrc.Stock
-	data.Item_Id = inputSrc.Item_Id
+	data.Item_Code = inputSrc.Item_Code
 }
 
 func createItem(input *e.CreateDto, event *pl.Event, tx *gorm.DB) error {
@@ -44,7 +44,7 @@ func createItem(input *e.CreateDto, event *pl.Event, tx *gorm.DB) error {
 		Name:           input.Name,
 		ItemGroup_Code: ero.ITGCMedicine,
 		Uom_Code:       input.Uom_Code,
-		Infra_Id:       input.Infra_Id,
+		Infra_Code:     input.Infra_Code,
 		Stock:          input.Stock,
 	}
 	item, err := ui.CreateData(itemCreate, event, tx)
@@ -52,6 +52,6 @@ func createItem(input *e.CreateDto, event *pl.Event, tx *gorm.DB) error {
 		return err
 	}
 
-	input.Item_Id = &item.Id
+	input.Item_Code = &item.Code
 	return nil
 }
diff --git a/internal/use-case/main-use-case/medicine/lib.go b/internal/use-case/main-use-case/medicine/lib.go
index 3b9d2fa1..f9fccb2e 100644
--- a/internal/use-case/main-use-case/medicine/lib.go
+++ b/internal/use-case/main-use-case/medicine/lib.go
@@ -81,8 +81,15 @@ func ReadDetailData(input e.ReadDetailDto, event *pl.Event, dbx ...*gorm.DB) (*e
 		tx = dg.I
 	}
 
+	if input.Code != nil {
+		tx = tx.Where("\"Code\" = ?", *input.Code)
+	}
+	if input.Id != nil {
+		tx = tx.Where("\"Id\" = ?", *input.Id)
+	}
+
 	tx = tx.Preload("Item")
-	if err := tx.First(&data, input.Id).Error; err != nil {
+	if err := tx.First(&data).Error; err != nil {
 		if processedErr := pu.HandleReadError(err, event, source, input.Id, data); processedErr != nil {
 			return nil, processedErr
 		}
diff --git a/internal/use-case/main-use-case/room/helper.go b/internal/use-case/main-use-case/room/helper.go
index cc64e8c5..5e97a653 100644
--- a/internal/use-case/main-use-case/room/helper.go
+++ b/internal/use-case/main-use-case/room/helper.go
@@ -17,8 +17,8 @@ func setData[T *e.CreateDto | *e.UpdateDto](input T, data *e.Room) {
 		inputSrc = &inputTemp.CreateDto
 	}
 
-	data.Infra_Id = inputSrc.Infra_Id
-	data.Unit_Id = inputSrc.Unit_Id
-	data.Specialist_Id = inputSrc.Specialist_Id
-	data.Subspecialist_Id = inputSrc.Subspecialist_Id
+	data.Infra_Code = inputSrc.Infra_Code
+	data.Unit_Code = inputSrc.Unit_Code
+	data.Specialist_Code = inputSrc.Specialist_Code
+	data.Subspecialist_Code = inputSrc.Subspecialist_Code
 }