diff --git a/api-ref/source/diagnostics.inc b/api-ref/source/diagnostics.inc
index 21bc29d863..64ae109a72 100644
--- a/api-ref/source/diagnostics.inc
+++ b/api-ref/source/diagnostics.inc
@@ -1,5 +1,4 @@
 .. -*- rst -*-
-.. needs:method_verification
 .. needs:parameter_verification
 .. needs:example_verification
 .. needs:body_verification
@@ -17,12 +16,11 @@ Show Server Diagnostics
 
 Shows basic usage data for a server.
 
-Policy defaults enable only users with the administrative role or the owner of the server to perform this operation. Cloud providers can change these permissions through the ``policy.json`` file.
+Policy defaults enable only users with the administrative role. Cloud providers can change these permissions through the ``policy.json`` file.
 
 Normal response codes: 200
 
-Error response codes: computeFault(400, 500), serviceUnavailable(503), badRequest(400),
-unauthorized(401), forbidden(403), badMethod(405), itemNotFound(404)
+Error response codes: unauthorized(401), forbidden(403), notfound(404), conflict(409), notimplemented(501)
 
 Request
 -------