diff --git a/CodeSystem/CodeSystem-Genomics-Participant-Role.json b/CodeSystem/CodeSystem-Genomics-Participant-Role.json
new file mode 100644
index 00000000..2f37ec2b
--- /dev/null
+++ b/CodeSystem/CodeSystem-Genomics-Participant-Role.json
@@ -0,0 +1,40 @@
+{
+ "resourceType": "CodeSystem",
+ "id": "action-participant-role-genomics",
+ "url": "https://fhir.nhs.uk/CodeSystem/action-participant-role-genomics",
+ "version": "0.1.0",
+ "name": "ActionParticipantRoleGenomics",
+ "title": "Action Participant Role Genomics",
+ "status": "draft",
+ "date": "2026-05-18T00:00:00.000Z",
+ "publisher": "NHS England",
+ "contact": [
+  {
+   "name": "NHS England",
+   "telecom": [
+    {
+     "system": "email",
+     "value": "interoperabilityteam@nhs.net",
+     "use": "work",
+     "rank": 1
+    }
+   ]
+  }
+ ],
+"description": "CodeSystem used to specify the role of a participant involved in a genomics testing workflow, identifying whether the participant acts as the requester or performer.",
+"copyright": "Copyright © 2026+ 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",
+ "caseSensitive": true,
+ "content": "complete",
+ "concept": [
+  {
+   "code": "requester",
+   "display": "Requester",
+   "definition": "The participant requesting or initiating the genomics-related activity or workflow."
+  },
+  {
+   "code": "performer",
+   "display": "Performer",
+   "definition": "The participant responsible for carrying out the genomics-related activity or workflow."
+  }
+ ]
+}
\ No newline at end of file
diff --git a/ValueSet/ValueSet-Genomics-workflow-participant-role.json b/ValueSet/ValueSet-Genomics-workflow-participant-role.json
new file mode 100644
index 00000000..d7ce4928
--- /dev/null
+++ b/ValueSet/ValueSet-Genomics-workflow-participant-role.json
@@ -0,0 +1,51 @@
+{
+ "resourceType": "ValueSet",
+ "id": "genomics-workflow-participant-role",
+ "url": "https://fhir.nhs.uk/ValueSet/genomics-workflow-participant-role",
+ "version": "0.1.0",
+ "name": "GenomicsWorkflowParticipantRole",
+ "title": "Genomics Workflow Participant Role",
+ "status": "draft",
+ "date": "2026-05-18T00:00:00.000Z",
+ "publisher": "NHS England",
+ "contact": [
+  {
+   "name": "NHS England",
+   "telecom": [
+    {
+     "system": "email",
+     "value": "interoperabilityteam@nhs.net",
+     "use": "work",
+     "rank": 1
+    }
+   ]
+  }
+ ],
+ "description": "A ValueSet used to identify the role of a participant involved in a genomics testing workflow, identifying whether the participant acts as the requester or performer.",
+ "copyright": "Copyright © 2026+ 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.",
+ "compose": {
+  "include": [
+   {
+    "system": "https://fhir.nhs.uk/CodeSystem/action-participant-role-genomics",
+    "version": "0.1.0"
+   }
+  ]
+ },
+ "expansion": {
+  "timestamp": "2026-05-18T00:00:00Z",
+  "total": 2,
+  "offset": 0,
+  "contains": [
+   {
+    "system": "https://fhir.nhs.uk/CodeSystem/action-participant-role-genomics",
+    "code": "requester",
+    "display": "Requester"
+   },
+   {
+    "system": "https://fhir.nhs.uk/CodeSystem/action-participant-role-genomics",
+    "code": "performer",
+    "display": "Performer"
+   }
+  ]
+ }
+}
\ No newline at end of file