Idiopathic gout, unspecified elbow

This code signifies a form of arthritis characterized by the sudden, severe attacks of pain, redness, and tenderness in the joint, specifically affecting an unspecified elbow, without an identifiable secondary cause. It results from the deposition of uric acid crystals within the joint space due to hyperuricemia.

Use this code when documentation clearly indicates a diagnosis of idiopathic gout affecting the elbow, and the specific laterality (right or left) is not documented or is unknown. This diagnosis is typically supported by clinical presentation, elevated serum uric acid levels, and possibly aspiration of synovial fluid showing urate crystals.

• Ensure documentation specifies "idiopathic" or "primary" gout to differentiate from secondary gout.
• Avoid using this code if the laterality of the affected elbow is known; instead, use the more specific codes for right (M10.021) or left (M10.022) elbow.
• Code any associated tophi (M10.9) or chronic gout (M10.1-) separately if documented.