Idiopathic chronic gout, right hip, without tophus (tophi)

This code signifies a chronic inflammatory arthritis affecting the right hip joint, caused by the deposition of uric acid crystals, but without the presence of visible or palpable tophi (nodular deposits of urate crystals). The "idiopathic" designation indicates that the underlying cause of the hyperuricemia is unknown.

Use this code for patients diagnosed with long-standing gout primarily affecting their right hip, where no tophaceous deposits have been identified. Documentation should clearly state a diagnosis of chronic gout, specify the right hip as the affected joint, and explicitly mention the absence of tophi. This code is appropriate when the physician has ruled out secondary causes of gout.

• Ensure documentation specifies "chronic" gout and the absence of tophi; acute gout of the hip would use a different subcategory.
• Laterality is crucial; verify the affected hip (right, left, or bilateral) is clearly documented.
• Distinguish from M10.051 (idiopathic gout, right hip, unspecified if with or without tophus) when the presence or absence of tophi is known.