Chronic gout due to renal impairment, unsp shoulder, w toph

This code signifies a chronic form of gout that has developed as a direct consequence of impaired kidney function. The gout manifests with the presence of tophi, which are deposits of uric acid crystals, in an unspecified shoulder joint.

Apply this code when documentation explicitly links chronic gout to renal impairment and notes the presence of tophi in the shoulder. This code is appropriate when the specific shoulder (left or right) is not documented.

• Ensure documentation clearly states "chronic gout" and specifies "due to renal impairment."
• Do not use this code if the gout is acute or if the renal impairment is not identified as the cause.
• Always look for laterality (left/right) of the shoulder; if specified, a more precise code should be used.