NPA-6425: filtered down create consent errors

Author: ehallam

specification/validated-relationships-service-api.yaml

@@ -787,15 +787,13 @@ paths:
             | 400         | `MISSING_SCOPE`             | Missing scope.                                                                                                                            |
             | 400         | `MISSING_CATEGORY`          | Missing category.                                                                                                                         |
             | 400         | `MISSING_DATETIME`          | Missing datetime.                                                                                                                         |
-            | 400         | `MISSING_VALUE`             | Missing header or parameter. For details, see the `diagnostics` field.                                                                    |
+            | 400 (422 in the code but we need a new error to cover this)         | `MISSING_VALUE`             | Missing header or parameter. For details, see the `diagnostics` field.                                                                    |
             | 400         | `BAD_REQUEST`               | Invalid request. For details, see the `diagnostics` field.                                                                                |
-            | 401         | `ACCESS_DENIED`             | Missing or invalid OAuth 2.0 bearer token in request.                                                                                     |
+            | 401         | `ACCESS_DENIED`             | Missing or invalid OAuth 2.0 bearer token in request. (NOT IN CODE)                                                                                    |
             | 403         | `FORBIDDEN`                 | Access denied to resource.                                                                                                                |
-            | 404         | `INVALIDATED_RESOURCE`      | Resource that has been marked as invalid was requested - invalid resources cannot be retrieved                                            |
-            | 405         | `METHOD_NOT_ALLOWED`        | The method is not allowed.                                                                                                                |
-            | 408         | `TIMEOUT`                   | Request timed out.                                                                                                                        |
+            | 405         | `METHOD_NOT_ALLOWED`        | The method is not allowed.   (NOT IN CODE)                                                                                                             |
+            | 408         | `TIMEOUT`                   | Request timed out.  (NOT IN CODE)                                                                                                                      |
             | 409         | `DUPLICATE_RELATIONSHIP`    | Conflict with requested proxy role.                                                                                                       |
-            | 422         | `INVALID_VALUE`             | Invalid Parameter or Invalid operation.                                                                                                   |
             | 422         | `INVALID_IDENTIFIER_VALUE`  | Invalid grantee or patient identifier value.                                                                                              |
             | 422         | `INVALID_IDENTIFIER_SYSTEM` | Invalid grantee or patient identifier system.                                                                                             |
             | 422         | `INVALID_PATIENT`           | Invalid patient.                                                                                                                          |
@@ -809,7 +807,6 @@ paths:
             | 422         | `INVALID_GRANTOR_VALUE`     | Grantor ODS code is missing, empty, whitespace-only or invalid format.                                                                   |
             | 422         | `INVALID_PERFORMER`         | Invalid performer.                                                                   |
             | 422         | `INVALID_GRANTOR_SYSTEM`    | Grantor identifier system is invalid (must be 'https://fhir.nhs.uk/Id/ods-organization-code').                                            |
-            | 422         | `INVALID_PARAMETER`         | Invalid request parameter. For details, see the diagnostics field.                                                                        |
             | 429         | `THROTTLED`                 | You have exceeded your application's [rate limit](https://digital.nhs.uk/developer/guides-and-documentation/reference-guide#rate-limits). |
 
           content: