DICOM PS3.18 2016a - Web Services

6.9.4.3 Response
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#### 6.9.4.3 Response

The Origin-Server shall return an HTTP/1.1 response message.

##### 6.9.4.3.1 Response Status Line

If the Retrieve request is successful, the Origin-Server shall return an HTTP/1.1 "200 - OK" response code.

If the request fails, the Origin-Server shall return an appropriate failure status line with a response code from Table 6.9.4-1.

Table 6.9.4-1. Status Codes

HTTP/1.1 Code | Reason Phrase | Description
--- | --- | ---
200 | OK | The requested instance is returned.
400 | Bad Request | The UPS-RS Origin-Server was unable to perform the query because the Service Provider cannot understand the query component.
401 | Unauthorized | The UPS-RS Origin-Server refused to perform the query because the client is not authenticated.
403 | Forbidden | The UPS-RS Origin-Server understood the request, but is refusing to perform the query (e.g., an authenticated user with insufficient privileges).
404 | Not found | The specified UPS Instance does not exist or is not managed by this Origin-Server.
503 | Busy | Service is unavailable.

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DICOM PS3.18 2016a - Web Services