diff --git a/ConceptMap/ConceptMap-Genomics-fetal-maternal-screening-genotype.json b/ConceptMap/ConceptMap-Genomics-fetal-maternal-screening-genotype.json
index d40484c..80049a7 100644
--- a/ConceptMap/ConceptMap-Genomics-fetal-maternal-screening-genotype.json
+++ b/ConceptMap/ConceptMap-Genomics-fetal-maternal-screening-genotype.json
@@ -89,7 +89,7 @@
      "target": [
       {
        "code": "427306008",
-       "display": "Hereditary hemoglobinopathy (disorder) ",
+       "display": "Hereditary hemoglobinopathy",
        "equivalence": "wider"
       }
      ]
diff --git a/StructureDefinition/Extension-GenomicTestCode-Version.json b/StructureDefinition/Extension-GenomicTestCode-Version.json
new file mode 100644
index 0000000..2adc8fa
--- /dev/null
+++ b/StructureDefinition/Extension-GenomicTestCode-Version.json
@@ -0,0 +1,60 @@
+{
+ "resourceType": "StructureDefinition",
+ "id": "Extension-GenomicTestCode-Version",
+ "url": "https://fhir.nhs.uk/England/StructureDefinition/Extension-GenomicTestCode-Version",
+ "version": "0.1.0",
+ "name": "ExtensionGenomicTestCodeVersion",
+ "title": "Extension Genomic Test Code Version",
+ "status": "draft",
+ "date": "2025-10-21",
+ "publisher": "NHS England",
+ "contact": [
+  {
+   "name": "NHS England",
+   "telecom": [
+    {
+     "system": "email",
+     "value": "interoperabilityteam@nhs.net"
+    }
+   ]
+  }
+ ],
+ "description": "An Extension used to record the version of the Genomic Test being ordered. E.g, \"system\": \"https://nhsgms-panelapp.genomicsengland.co.uk\", code\": \"R31\",valueDecimal\": 7.0",
+ "purpose": "This is a use case from Genomics, used to record the test code version of the Genomic Test being ordered. ",
+ "copyright": "Copyright © 2025+ NHS England Licensed under the Apache License, Version 2.0 (the \\\\\\\"License\\\\\\\"); you may not use this file except in compliance with the License. You may obtain a copy of the License at  http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an \\\\\\\"AS IS\\\\\\\" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. HL7® FHIR® standard Copyright © 2011+ HL7 The HL7® FHIR® standard is used under the FHIR license. You may obtain a copy of the FHIR license at  https://www.hl7.org/fhir/license.html.",
+ "fhirVersion": "4.0.1",
+ "kind": "complex-type",
+ "abstract": false,
+ "context": [
+  {
+   "type": "element",
+   "expression": "Coding"
+  }
+ ],
+ "type": "Extension",
+ "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension",
+ "derivation": "constraint",
+ "differential": {
+  "element": [
+   {
+    "id": "Extension.extension",
+    "path": "Extension.extension",
+    "max": "0"
+   },
+   {
+    "id": "Extension.url",
+    "path": "Extension.url",
+    "fixedUri": "https://fhir.nhs.uk/England/StructureDefinition/Extension-GenomicTestCode-Version"
+   },
+   {
+    "id": "Extension.value[x]",
+    "path": "Extension.value[x]",
+    "type": [
+     {
+      "code": "decimal"
+     }
+    ]
+   }
+  ]
+ }
+}
\ No newline at end of file
diff --git a/fhirpkg.lock.json b/fhirpkg.lock.json
index 22f7c41..d0e79c6 100644
--- a/fhirpkg.lock.json
+++ b/fhirpkg.lock.json
@@ -1,5 +1,5 @@
 {
-  "updated": "2025-09-05T16:30:58.9974559+01:00",
+  "updated": "2025-10-21T09:54:09.9912765+01:00",
   "dependencies": {
     "fhir.r4.ukcore.stu3.currentbuild": "0.24.0-pre-release",
     "hl7.fhir.r4.core": "4.0.1",