diff --git a/specification/validated-relationships-service-api.yaml b/specification/validated-relationships-service-api.yaml
index c7ad6c4..1df8f2e 100644
--- a/specification/validated-relationships-service-api.yaml
+++ b/specification/validated-relationships-service-api.yaml
@@ -1521,6 +1521,9 @@ components:
           example: "2010-10-22"
           type: string
           format: date
+        generalPractitioner:
+          $ref: '#/components/schemas/Reference'
+          description: "Patient's nominated primary care provider"
 
     Consent: 
       type: object
@@ -1689,7 +1692,10 @@ components:
     
     Reference:
       type: object
-      properties:        
+      properties:  
+        type:
+          type: string
+          description: The resource type that the reference refers to
         identifier:
           $ref: '#/components/schemas/Identifier'