Drug-induced gout, multiple sites

This code signifies a form of inflammatory arthritis caused by an adverse reaction to a medication, affecting multiple joints. It results from drug-induced hyperuricemia leading to urate crystal deposition and subsequent acute inflammatory episodes in various anatomical locations.

Apply this code when documentation clearly states gout is drug-induced and affects more than one joint. This typically occurs in patients taking medications known to elevate uric acid levels, such as diuretics or certain immunosuppressants, and presenting with polyarticular gout flares.

• Always identify the specific drug causing the adverse effect using an external cause code (T36-T50) in addition to this diagnosis.
• Ensure documentation specifies "multiple sites" or lists several affected joints; otherwise, a site-specific code may be more appropriate.
• Distinguish from primary gout (M10.0-) or gout due to renal impairment (M10.3-), as the etiology is crucial for correct code assignment.