diff --git a/.typos.toml b/.typos.toml
new file mode 100644
index 0000000..23cb9ce
--- /dev/null
+++ b/.typos.toml
@@ -0,0 +1,4 @@
+[files]
+extend-exclude = [
+  "examples/fhir/psa/poc_working_examples/*.json"
+]
diff --git a/examples/fhir/psa/poc_working_examples/rduh_order_servicerequest_0810.json b/examples/fhir/psa/poc_working_examples/rduh_order_servicerequest_0810.json
new file mode 100644
index 0000000..d93580e
--- /dev/null
+++ b/examples/fhir/psa/poc_working_examples/rduh_order_servicerequest_0810.json
@@ -0,0 +1,274 @@
+{
+  "resourceType": "Bundle",
+  "type": "transaction",
+  "entry": [
+    {
+      "request": {
+        "method": "POST",
+        "url": "Organization"
+      },
+      "fullUrl": "urn:uuid:3be95115-cdb3-4093-964a-6ddd32528d86",
+      "resource": {
+        "resourceType": "Organization",
+        "identifier": [
+          {
+            "value": "RDE"
+          }
+        ]
+      }
+    },
+    {
+      "request": {
+        "method": "POST",
+        "url": "Organization"
+      },
+      "fullUrl": "urn:uuid:73889367-0349-4c7b-9f29-73bb1cf5cb22",
+      "resource": {
+        "resourceType": "Organization",
+        "identifier": [
+          {
+            "value": "NHS"
+          }
+        ]
+      }
+    },
+    {
+      "request": {
+        "method": "POST",
+        "url": "Patient"
+      },
+      "fullUrl": "urn:uuid:49d5b864-9a25-41f0-8011-926d12e9d9cf",
+      "resource": {
+        "resourceType": "Patient",
+        "address": [
+          {
+            "country": "ENG"
+          }
+        ],
+        "birthDate": "1966-10-06",
+        "deceasedBoolean": false,
+        "gender": "male",
+        "identifier": [
+          {
+            "assigner": {
+              "reference": "urn:uuid:3be95115-cdb3-4093-964a-6ddd32528d86"
+            },
+            "extension": [
+              {
+                "url": "http://intersystems.com/fhir/extn/sda3/lib/patient-number-i-s-o-assigning-authority",
+                "valueString": "RDE"
+              }
+            ],
+            "type": {
+              "coding": [
+                {
+                  "code": "MR",
+                  "system": "http://terminology.hl7.org/CodeSystem/v2-0203"
+                }
+              ],
+              "text": "MRN"
+            },
+            "value": "KB14733"
+          },
+          {
+            "assigner": {
+              "reference": "urn:uuid:73889367-0349-4c7b-9f29-73bb1cf5cb22"
+            },
+            "extension": [
+              {
+                "url": "http://intersystems.com/fhir/extn/sda3/lib/patient-number-i-s-o-assigning-authority",
+                "valueString": "NHS"
+              }
+            ],
+            "type": {
+              "coding": [
+                {
+                  "code": "NH"
+                }
+              ],
+              "text": "NH"
+            },
+            "value": "7496487841"
+          }
+        ],
+        "managingOrganization": {
+          "reference": "urn:uuid:3be95115-cdb3-4093-964a-6ddd32528d86"
+        },
+        "name": [
+          {
+            "family": "HOMETEST",
+            "given": [
+              "PSA"
+            ],
+            "text": "PSA HOMETEST",
+            "use": "official"
+          }
+        ]
+      }
+    },
+    {
+      "request": {
+        "method": "POST",
+        "url": "Practitioner"
+      },
+      "fullUrl": "urn:uuid:fde1e02c-ca08-4a2c-8b2c-d3903f484332",
+      "resource": {
+        "resourceType": "Practitioner",
+        "extension": [
+          {
+            "url": "http://intersystems.com/fhir/extn/sda3/lib/code-table-detail-care-provider-description",
+            "valueString": "(ANMD), ANAESTHETIC"
+          }
+        ],
+        "identifier": [
+          {
+            "extension": [
+              {
+                "url": "http://intersystems.com/fhir/extn/sda3/lib/code-table-detail-care-provider-s-d-a-coding-standard",
+                "valueString": "PROVID"
+              }
+            ],
+            "type": {
+              "coding": [
+                {
+                  "code": "PROVID"
+                }
+              ]
+            },
+            "value": "107100"
+          }
+        ],
+        "name": [
+          {
+            "family": "(ANMD)",
+            "given": [
+              "ANAESTHETIC",
+              "CONSULTANT"
+            ],
+            "text": "ANAESTHETIC CONSULTANT (ANMD)"
+          }
+        ]
+      }
+    },
+    {
+      "request": {
+        "method": "POST",
+        "url": "Specimen"
+      },
+      "fullUrl": "urn:uuid:19f45c72-1a46-4944-bdaf-846d20cbdd4b",
+      "resource": {
+        "resourceType": "Specimen",
+        "collection": {
+          "bodySite": {
+            "coding": [
+              {
+                "code": "122554006",
+                "display": "Blood, Capillary"
+              }
+            ]
+          },
+          "quantity": {
+            "system": "http://www.intersystems.com/fhir/system"
+          }
+        },
+        "subject": {
+          "reference": "urn:uuid:49d5b864-9a25-41f0-8011-926d12e9d9cf"
+        },
+        "type": {
+          "coding": [
+            {
+              "code": "119297000",
+              "display": "Blood",
+              "system": "http://snomed.info/sct"
+            }
+          ]
+        }
+      }
+    },
+    {
+      "request": {
+        "method": "POST",
+        "url": "ServiceRequest"
+      },
+      "fullUrl": "urn:uuid:e8395ba4-a624-40dc-9adf-d84f61e851a5",
+      "resource": {
+        "resourceType": "ServiceRequest",
+        "authoredOn": "2026-10-08T13:53:24+01:00",
+        "category": [
+          {
+            "coding": [
+              {
+                "code": "103693007",
+                "display": "Diagnostic procedure",
+                "system": "http://snomed.info/sct"
+              }
+            ],
+            "text": "Diagnostic procedure"
+          }
+        ],
+        "code": {
+          "coding": [
+            {
+              "code": "63476009",
+              "display": "PSA HOMETEST",
+              "system": "http://snomed.info/sct"
+            }
+          ]
+        },
+        "extension": [
+          {
+            "url": "http://intersystems.com/fhir/extn/sda3/lib/lab-order-placer-assigning-authority",
+            "valueString": "EPC^^"
+          }
+        ],
+        "identifier": [
+          {
+            "type": {
+              "coding": [
+                {
+                  "code": "FILL",
+                  "display": "Filler Identifier",
+                  "system": "http://terminology.hl7.org/CodeSystem/v2-0203"
+                }
+              ],
+              "text": "FillerId"
+            },
+            "use": "official"
+          },
+          {
+            "type": {
+              "coding": [
+                {
+                  "code": "PLAC",
+                  "display": "Placer Identifier",
+                  "system": "http://terminology.hl7.org/CodeSystem/v2-0203"
+                }
+              ],
+              "text": "PlacerId"
+            },
+            "use": "official",
+            "value": "RH82822337"
+          }
+        ],
+        "intent": "order",
+        "note": [
+          {
+            "text": "Test hometest interface"
+          }
+        ],
+        "requester": {
+          "reference": "urn:uuid:fde1e02c-ca08-4a2c-8b2c-d3903f484332"
+        },
+        "specimen": [
+          {
+            "reference": "urn:uuid:19f45c72-1a46-4944-bdaf-846d20cbdd4b"
+          }
+        ],
+        "status": "active",
+        "subject": {
+          "reference": "urn:uuid:49d5b864-9a25-41f0-8011-926d12e9d9cf"
+        }
+      }
+    }
+  ]
+}
diff --git a/examples/fhir/psa/poc_working_examples/rduh_order_servicerequest_ukcore_example.json b/examples/fhir/psa/poc_working_examples/rduh_order_servicerequest_ukcore_example.json
index 75934ad..8f1b599 100644
--- a/examples/fhir/psa/poc_working_examples/rduh_order_servicerequest_ukcore_example.json
+++ b/examples/fhir/psa/poc_working_examples/rduh_order_servicerequest_ukcore_example.json
@@ -82,6 +82,17 @@
           ]
         },
         "status": "available",
+        "collection": {
+          "bodySite": {
+            "coding": [
+              {
+                "code": "20982000",
+                "display": "Capillary",
+                "system": "http://snomed.info/sct"
+              }
+            ]
+          }
+        },
         "subject": {
           "reference": "urn:uuid:a9d98321-bfd1-4abd-8180-017228ad8b53"
         },
diff --git a/schemas/supplier-api-spec-v2.yaml b/schemas/supplier-api-spec-v2.yaml
index db1ee03..14bd649 100644
--- a/schemas/supplier-api-spec-v2.yaml
+++ b/schemas/supplier-api-spec-v2.yaml
@@ -174,6 +174,12 @@ paths:
                           profile:
                             - https://fhir.hl7.org.uk/StructureDefinition/UKCore-Specimen
                         status: available
+                        collection:
+                          bodySite:
+                            coding:
+                              - code: "20982000"
+                                display: Capillary
+                                system: http://snomed.info/sct
                         subject:
                           reference: urn:uuid:a9d98321-bfd1-4abd-8180-017228ad8b53
                         type:
@@ -878,7 +884,7 @@ components:
                   enum: [Specimen]
         resource:
           type: object
-          required: [resourceType, meta, status, subject, type]
+          required: [resourceType, meta, subject, type]
           properties:
             resourceType:
               type: string
@@ -896,6 +902,11 @@ components:
             status:
               type: string
               enum: [available, unavailable, unsatisfactory, entered-in-error]
+            collection:
+              type: object
+              properties:
+                bodySite:
+                  $ref: '#/components/schemas/FHIRCodeableConcept'
             subject:
               $ref: '#/components/schemas/FHIRReference'
             type: