Corrects a duplicate row in the status code table.

Author: mmitrik

articles/healthcare-apis/dicom/dicom-services-conformance-statement-v2.md

@@ -373,7 +373,7 @@ Cache validation is supported using the `ETag` mechanism. In the response to a m
 | :--------------------------- | :---------- |
 | `200 (OK)`                     | All requested data has been retrieved. |
 | `304 (Not Modified)`           | The requested data hasn't been modified since the last request. Content isn't added to the response body in such case. For more information, see the above section **Retrieve Metadata Cache Validation (for Study, Series, or Instance)**. |
-| `304 (Not Modified)`           | The requested data hasn't been modified since the last request. Content isn't added to the response body in such case. For more information, see the above section **Retrieve Metadata Cache Validation (for Study, Series, or Instance)**. |
+| `400 (Bad Request)`            | The request was badly formatted. For example, the provided study instance identifier didn't conform to the expected UID format, or the requested transfer-syntax encoding isn't supported. |
 | `401 (Unauthorized)`           | The client isn't authenticated. |
 | `403 (Forbidden)`              | The user isn't authorized. |
 | `404 (Not Found)`              | The specified DICOM resource couldn't be found. |

articles/healthcare-apis/dicom/dicom-services-conformance-statement.md

@@ -300,7 +300,7 @@ Cache validation is supported using the `ETag` mechanism. In the response to a m
 | :--------------------------- | :---------- |
 | `200 (OK)`                     | All requested data has been retrieved. |
 | `304 (Not Modified)`           | The requested data hasn't been modified since the last request. Content isn't added to the response body in such case. For more information, see the above section **Retrieve Metadata Cache Validation (for Study, Series, or Instance)**. |
-| `304 (Not Modified)`           | The requested data hasn't been modified since the last request. Content isn't added to the response body in such case. For more information, see the above section **Retrieve Metadata Cache Validation (for Study, Series, or Instance)**. |
+| `400 (Bad Request)` | The request was badly formatted. For example, the provided study instance identifier didn't conform to the expected UID format, or the requested transfer-syntax encoding isn't supported. |
 | `401 (Unauthorized)`           | The client isn't authenticated. |
 | `403 (Forbidden)`              | The user isn't authorized. |
 | `404 (Not Found)`              | The specified DICOM resource couldn't be found. |