diff --git a/specification/immunisation-fhir-api.yaml b/specification/immunisation-fhir-api.yaml
index 99f57597a..17bb691cf 100644
--- a/specification/immunisation-fhir-api.yaml
+++ b/specification/immunisation-fhir-api.yaml
@@ -223,7 +223,8 @@ paths:
       description: |
         ## Overview
         Use this interaction to search for a patient's vaccination records using their NHS number and DiseaseType. You can request the patient's vaccination history for one or more specified 'disease types'. You may limit the vaccination records by specifying date criteria, for example if you only need to know about vaccinations administered in the last 12 months. 
-        Vaccination event details may be obfuscated for sensitive information. The response will not include contained resources for patient or practitioner within each immunization resource it returns. A single, separate patient resource will be included in the bundle and referenced by each immunization. 
+        Location related data items are included. Patient location sensitivity indicators (such as flags for sensitive patient records) should be obtained by connecting systems from the [Personal Demographics Service (PDS)](https://digital.nhs.uk/services/personal-demographics-service) and used to apply data filtering as appropriate. 
+        The response will not include contained resources for patient or practitioner within each immunization resource it returns. A single, separate patient resource will be included in the bundle and referenced by each immunization. 
         Vaccination events submitted without an NHS Number will not be available for retrieval via this interaction. Also, where a patient has a change of NHS Number some or all records may be unavailable via this interaction for a short period of time whilst records are updated. 
         You must be authorised for the search interaction and the disease type(s) specified in your search in order to access the records. 
 
@@ -1151,7 +1152,7 @@ components:
             gender: unknown
             birthDate: '1965-02-28'
             address:
-              - postalCode: ZZ99 3CZ
+              - postalCode: EC1A 1BB
         extension:
           - url: >-
               https://fhir.hl7.org.uk/StructureDefinition/Extension-UKCore-VaccinationProcedure
@@ -1161,6 +1162,10 @@ components:
                   code: '1303503001'
                   display: >-
                     Administration of RSV (respiratory syncytial virus) vaccine
+        identifier:
+          - use: official
+            system: 'https://supplierABC/identifiers/vacc'
+            value: e2154d29-1ead-4830-a513-0d59705078fa
         status: completed
         vaccineCode:
           coding:
@@ -1175,8 +1180,8 @@ components:
         primarySource: true
         location:
           identifier:
-            system: 'urn:iso:std:iso:3166'
-            value: GB
+            system: 'https://fhir.nhs.uk/Id/ods-organization-code'
+            value: 'X99999'
         manufacturer:
           display: AstraZeneca Ltd
         lotNumber: 4120Z001
@@ -1203,7 +1208,7 @@ components:
               type: Organization
               identifier:
                 system: 'https://fhir.nhs.uk/Id/ods-organization-code'
-                value: N2N9I
+                value: B0C4P
         reasonCode:
           - coding:
               - system: 'http://snomed.info/sct'
@@ -1293,8 +1298,8 @@ components:
               primarySource: true
               location:
                 identifier:
-                  system: 'urn:iso:std:iso:3166'
-                  value: GB
+                  system: 'https://fhir.nhs.uk/Id/ods-organization-code'
+                  value: 'X99999'
               manufacturer:
                 display: AstraZeneca Ltd
               lotNumber: 4120Z001
@@ -1343,7 +1348,6 @@ components:
               identifier:
                 - system: 'https://fhir.nhs.uk/Id/nhs-number'
                   value: '9449306206'
-              birthDate: '2014-03-25'
             search:
               mode: include
         total: 1