Other secondary gout, unspecified ankle and foot

This code signifies a form of gout that develops as a consequence of another underlying medical condition, affecting an unspecified ankle and/or foot. It indicates the presence of gouty arthritis in these lower extremity joints, where the primary etiology is not idiopathic but rather secondary to another disease process.

Apply this code when documentation clearly states "secondary gout" affecting the ankle or foot, but the specific ankle (right or left) or foot (right or left) is not specified. This is appropriate when the physician explicitly links the gout to another condition (e.g., renal failure, myeloproliferative disorders) without detailing the laterality of the affected joint.

• Ensure documentation specifies "secondary gout" and not primary or idiopathic gout.
• If the specific ankle or foot (right or left) is documented, use a more specific code from the M10.47- subcategory.
• Always code the underlying secondary condition first, followed by this gout code, as per ICD-10-CM sequencing guidelines for secondary conditions.