diff --git a/backend/src/fhir_service.py b/backend/src/fhir_service.py
index ed1969e17..efe915d18 100644
--- a/backend/src/fhir_service.py
+++ b/backend/src/fhir_service.py
@@ -87,12 +87,9 @@ def get_immunization_by_id(self, imms_id: str, imms_vax_type_perms: str) -> Opti
 
         # Returns the Immunisation full resource with no obfuscation
         resource = imms_resp.get("Resource", {})
-        imms_filtered_for_read = Filter.read(resource) if resource else {}
-
-
         return {
             "Version": imms_resp.get("Version", ""),
-            "Resource": Immunization.parse_obj(imms_filtered_for_read),
+            "Resource": Immunization.parse_obj(resource),
         }
 
     def get_immunization_by_id_all(self, imms_id: str, imms: dict) -> Optional[dict]:
diff --git a/backend/src/filter.py b/backend/src/filter.py
index a1197b852..5e3268bac 100644
--- a/backend/src/filter.py
+++ b/backend/src/filter.py
@@ -94,13 +94,6 @@ def add_use_to_identifier(imms: dict) -> dict:
 
 class Filter:
     """Functions for filtering a FHIR Immunization Resource"""
-
-    @staticmethod
-    def read(imms: dict) -> dict:
-        """Apply filtering for READ request"""
-        imms.pop("identifier")
-        return imms
-
     @staticmethod
     def search(imms: dict, patient_full_url: str, bundle_patient: dict = None) -> dict:
         """Apply filtering for an individual FHIR Immunization Resource as part of SEARCH request"""
diff --git a/backend/tests/sample_data/completed_covid19_immunization_event_filtered_for_read.json b/backend/tests/sample_data/completed_covid19_immunization_event_for_read.json
similarity index 93%
rename from backend/tests/sample_data/completed_covid19_immunization_event_filtered_for_read.json
rename to backend/tests/sample_data/completed_covid19_immunization_event_for_read.json
index f4af45889..3bbcde8bf 100644
--- a/backend/tests/sample_data/completed_covid19_immunization_event_filtered_for_read.json
+++ b/backend/tests/sample_data/completed_covid19_immunization_event_for_read.json
@@ -7,7 +7,9 @@
       "name": [
         {
           "family": "Nightingale",
-          "given": ["Florence"]
+          "given": [
+            "Florence"
+          ]
         }
       ]
     },
@@ -23,7 +25,9 @@
       "name": [
         {
           "family": "Taylor",
-          "given": ["Sarah"]
+          "given": [
+            "Sarah"
+          ]
         }
       ],
       "gender": "unknown",
@@ -48,6 +52,12 @@
         ]
       }
     }
+  ],
+   "identifier": [
+    {
+      "system": "https://supplierABC/identifiers/vacc",
+      "value": "ACME-vacc123456"
+    }
   ],
   "status": "completed",
   "vaccineCode": {
@@ -143,4 +153,4 @@
       "doseNumberPositiveInt": 1
     }
   ]
-}
+}
\ No newline at end of file
diff --git a/backend/tests/test_fhir_service.py b/backend/tests/test_fhir_service.py
index 2e55fc483..0dd03e4ae 100644
--- a/backend/tests/test_fhir_service.py
+++ b/backend/tests/test_fhir_service.py
@@ -187,8 +187,8 @@ def test_immunization_not_found(self):
 
     def test_get_immunization_by_id_patient_not_restricted(self):
         """
-        Test that get_immunization_by_id returns a FHIR Immunization Resource which has been filtered for read,
-        but not for s-flag, when patient is not restricted
+        Test that get_immunization_by_id returns a FHIR Immunization Resource which has not been filtered for read,
+        and also dropped obfuscation for s-flag, when patient is not restricted
         """
         imms_id = "non_restricted_id"
 
@@ -196,7 +196,7 @@ def test_get_immunization_by_id_patient_not_restricted(self):
         self.imms_repo.get_immunization_by_id.return_value = {"Resource": immunization_data}
         self.fhir_service.pds_service.get_patient_details.return_value = {"meta": {"security": [{"code": "U"}]}}
 
-        expected_imms = load_json_data("completed_covid19_immunization_event_filtered_for_read.json")
+        expected_imms = load_json_data("completed_covid19_immunization_event_for_read.json")
         expected_output = Immunization.parse_obj(expected_imms)
 
         # When
diff --git a/backend/tests/test_filter.py b/backend/tests/test_filter.py
index 61a29301d..ee82d9531 100644
--- a/backend/tests/test_filter.py
+++ b/backend/tests/test_filter.py
@@ -145,12 +145,6 @@ def test_replace_organization_values(self):
         del expected_output_data["performer"][1]["actor"]["identifier"]
         self.assertEqual(replace_organization_values(input_imms_data), expected_output_data)
 
-    def test_filter_read(self):
-        """Tests to ensure Filter.read appropriately filters a FHIR Immunization Resource"""
-        unfiltered_imms = deepcopy(self.covid_19_immunization_event)
-        expected_output = load_json_data("completed_covid19_immunization_event_filtered_for_read.json")
-        self.assertEqual(Filter.read(unfiltered_imms), expected_output)
-
     def test_filter_search(self):
         """Tests to ensure Filter.search appropriately filters a FHIR Immunization Resource"""
         bundle_patient = deepcopy(self.bundle_patient_resource)