Drug-induced gout, unspecified shoulder

This code signifies an inflammatory arthritis caused by elevated uric acid levels due to medication, specifically affecting an unspecified shoulder joint. The condition presents with acute pain, swelling, and tenderness in the shoulder, mimicking other forms of gout but with a clear pharmacological etiology.

Use this code when documentation explicitly states "drug-induced gout" affecting the shoulder, without specifying laterality. This diagnosis requires a clear link between a prescribed medication and the onset or exacerbation of gout symptoms in the shoulder. Supporting documentation should include medication lists, symptom onset relative to drug initiation, and possibly uric acid levels.

• Ensure documentation clearly links a specific drug to the gout flare; otherwise, consider other gout codes.
• Avoid using this code if the laterality (right or left shoulder) is specified; look for more specific codes within the M10.21- subcategory.
• Always sequence the drug causing the adverse effect (T36-T50 category) as a secondary diagnosis, if known and documented.