diff --git a/sandbox/api/app.py b/sandbox/api/app.py
index 744c3cf..4daeaaa 100644
--- a/sandbox/api/app.py
+++ b/sandbox/api/app.py
@@ -38,19 +38,20 @@ def get_related_persons() -> Union[dict, tuple]:
         if (
             request.args.get("identifier")
             and request.args.get("patient")
-            and request.args.get("_include") == "patient"
+            and request.args.get("_include") == "RelatedPerson:patient"
         ):
             # Request with identifier, patient and _include=patient
             return get_response(
-                "./api/responses/GET_RelatedPerson/identifier_and_patient_include.json"
+                "./api/responses/GET_RelatedPerson/identifier_and_patient_identifier_include.json"
             )
         elif request.args.get("identifier") and request.args.get("patient"):
             # Request with identifier and patient
             return get_response(
-                "./api/responses/GET_RelatedPerson/identifier_and_patient.json"
+                "./api/responses/GET_RelatedPerson/identifier_and_patient_identifier.json"
             )
         elif (
-            request.args.get("identifier") and request.args.get("_include") == "patient"
+            request.args.get("identifier")
+            and request.args.get("_include") == "RelatedPerson:patient"
         ):
             # Request with identifier and _include=patient
             return get_response(
diff --git a/sandbox/api/responses/GET_RelatedPerson/identifier.json b/sandbox/api/responses/GET_RelatedPerson/identifier.json
index a0d5d98..b59161e 100644
--- a/sandbox/api/responses/GET_RelatedPerson/identifier.json
+++ b/sandbox/api/responses/GET_RelatedPerson/identifier.json
@@ -24,11 +24,6 @@
                 "code": "MTH",
                 "display": "mother",
                 "system": "http://hl7.org/fhir/ValueSet/relatedperson-relationshiptype"
-              },
-              {
-                "code": "Personal",
-                "display": "Personal relationship with the patient",
-                "system": "https://fhir.nhs.uk/R4/CodeSystem/UKCore-AdditionalRelatedPersonRole"
               }
             ]
           }
diff --git a/sandbox/api/responses/GET_RelatedPerson/identifier_and_patient.json b/sandbox/api/responses/GET_RelatedPerson/identifier_and_patient_identifier.json
similarity index 80%
rename from sandbox/api/responses/GET_RelatedPerson/identifier_and_patient.json
rename to sandbox/api/responses/GET_RelatedPerson/identifier_and_patient_identifier.json
index 2419477..2f12d24 100644
--- a/sandbox/api/responses/GET_RelatedPerson/identifier_and_patient.json
+++ b/sandbox/api/responses/GET_RelatedPerson/identifier_and_patient_identifier.json
@@ -24,11 +24,6 @@
                 "code": "MTH",
                 "display": "mother",
                 "system": "http://hl7.org/fhir/ValueSet/relatedperson-relationshiptype"
-              },
-              {
-                "code": "Personal",
-                "display": "Personal relationship with the patient",
-                "system": "https://fhir.nhs.uk/R4/CodeSystem/UKCore-AdditionalRelatedPersonRole"
               }
             ]
           }
@@ -61,11 +56,6 @@
                 "code": "MTH",
                 "display": "mother",
                 "system": "http://hl7.org/fhir/ValueSet/relatedperson-relationshiptype"
-              },
-              {
-                "code": "Personal",
-                "display": "Personal relationship with the patient",
-                "system": "https://fhir.nhs.uk/R4/CodeSystem/UKCore-AdditionalRelatedPersonRole"
               }
             ]
           }
diff --git a/sandbox/api/responses/GET_RelatedPerson/identifier_and_patient_include.json b/sandbox/api/responses/GET_RelatedPerson/identifier_and_patient_identifier_include.json
similarity index 87%
rename from sandbox/api/responses/GET_RelatedPerson/identifier_and_patient_include.json
rename to sandbox/api/responses/GET_RelatedPerson/identifier_and_patient_identifier_include.json
index dbe6774..0ea0639 100644
--- a/sandbox/api/responses/GET_RelatedPerson/identifier_and_patient_include.json
+++ b/sandbox/api/responses/GET_RelatedPerson/identifier_and_patient_identifier_include.json
@@ -49,11 +49,6 @@
                 "code": "MTH",
                 "display": "mother",
                 "system": "http://hl7.org/fhir/ValueSet/relatedperson-relationshiptype"
-              },
-              {
-                "code": "Personal",
-                "display": "Personal relationship with the patient",
-                "system": "https://fhir.nhs.uk/R4/CodeSystem/UKCore-AdditionalRelatedPersonRole"
               }
             ]
           }
@@ -111,11 +106,6 @@
                 "code": "MTH",
                 "display": "mother",
                 "system": "http://hl7.org/fhir/ValueSet/relatedperson-relationshiptype"
-              },
-              {
-                "code": "Personal",
-                "display": "Personal relationship with the patient",
-                "system": "https://fhir.nhs.uk/R4/CodeSystem/UKCore-AdditionalRelatedPersonRole"
               }
             ]
           }
diff --git a/sandbox/api/responses/GET_RelatedPerson/identifier_include.json b/sandbox/api/responses/GET_RelatedPerson/identifier_include.json
index 5274cc6..293fd65 100644
--- a/sandbox/api/responses/GET_RelatedPerson/identifier_include.json
+++ b/sandbox/api/responses/GET_RelatedPerson/identifier_include.json
@@ -49,11 +49,6 @@
                 "code": "MTH",
                 "display": "mother",
                 "system": "http://hl7.org/fhir/ValueSet/relatedperson-relationshiptype"
-              },
-              {
-                "code": "Personal",
-                "display": "Personal relationship with the patient",
-                "system": "https://fhir.nhs.uk/R4/CodeSystem/UKCore-AdditionalRelatedPersonRole"
               }
             ]
           }
diff --git a/sandbox/api/tests/test_app.py b/sandbox/api/tests/test_app.py
index 300cb06..fbb40b4 100644
--- a/sandbox/api/tests/test_app.py
+++ b/sandbox/api/tests/test_app.py
@@ -26,15 +26,23 @@ def test_health_check(client: object, endpoint: str) -> None:
         ("identifier=1234567890", "./api/responses/GET_RelatedPerson/identifier.json"),
         (
             "identifier=1234567890&patient=0987654321",
-            "./api/responses/GET_RelatedPerson/identifier_and_patient.json",
+            "./api/responses/GET_RelatedPerson/identifier_and_patient_identifier.json",
         ),
         (
-            "identifier=1234567890&_include=patient",
+            "identifier=1234567890&_include=RelatedPerson:patient",
             "./api/responses/GET_RelatedPerson/identifier_include.json",
         ),
         (
-            "identifier=1234567890&patient=0987654321&_include=patient",
-            "./api/responses/GET_RelatedPerson/identifier_and_patient_include.json",
+            "identifier=1234567890&patient=0987654321&_include=RelatedPerson:patient",
+            "./api/responses/GET_RelatedPerson/identifier_and_patient_identifier_include.json",
+        ),
+        (
+            "identifier=1234567890&_include=any",
+            "./api/responses/GET_RelatedPerson/identifier.json",
+        ),
+        (
+            "identifier=1234567890&patient=0987654321&_include=any",
+            "./api/responses/GET_RelatedPerson/identifier_and_patient_identifier.json",
         ),
     ],
 )