Idiopathic chronic gout, unspecified hip, without tophus

This code signifies a persistent, long-term form of gout where the underlying cause is unknown, affecting an unspecified hip joint. It specifically indicates the absence of tophi, which are deposits of uric acid crystals that can form under the skin or in joints.

Apply this code when documentation confirms a diagnosis of chronic idiopathic gout localized to the hip, without specifying left or right, and explicitly states the absence of tophaceous deposits. This code is appropriate when the provider has not identified a secondary cause for the hyperuricemia.

• Ensure the documentation clearly states "chronic" and "idiopathic" to differentiate from acute or secondary gout.
• Verify that no specific hip (left or right) is documented; otherwise, a more specific code should be used.
• Confirm the absence of tophi; if present, a different M1A.0x code indicating tophaceous gout would be appropriate.