Drug-induced gout, right knee

This code signifies gout that has developed as an adverse effect of a medication, specifically affecting the right knee joint. It indicates an inflammatory arthropathy characterized by the deposition of uric acid crystals, directly attributable to drug therapy.

Apply this code when documentation clearly states a diagnosis of drug-induced gout localized to the right knee. Supporting documentation should identify the causative drug and confirm the presence of gout in the specified joint.

• Always sequence the code for the adverse effect (T36-T50 with 5th or 6th character 5) first, followed by this code.
• Ensure the documentation explicitly links the gout to a specific drug; otherwise, use codes for idiopathic gout.
• Verify laterality; this code is specific to the right knee. Use M10.262 for the left knee or M10.269 for unspecified knee.