diff --git a/src/medical_info/db/schemas/persons.py b/src/medical_info/db/schemas/persons.py
index 6345a39..c0929a6 100644
--- a/src/medical_info/db/schemas/persons.py
+++ b/src/medical_info/db/schemas/persons.py
@@ -3,6 +3,7 @@ from typing import Optional, List
 from datetime import date
 
 class Address(BaseModel):
+  id: str
   category: str
   region: str | None
   city: str | None
@@ -11,10 +12,12 @@ class Address(BaseModel):
   flat: str | None
 
 class Contact(BaseModel):
+  id: str
   category: str
   value: str
 
 class Document(BaseModel):
+  id: str
   category: str
   series: str
   number: str