Drug-induced chronic gout, unspecified elbow, with tophus

This code signifies a chronic inflammatory arthritis caused by a medication, specifically presenting as gout in an unspecified elbow joint, and characterized by the presence of tophi. Tophi are deposits of uric acid crystals that form under the skin or in other tissues, indicating long-standing or severe hyperuricemia. The condition is drug-induced, meaning a pharmaceutical agent is the causative factor.

Use this code when documentation clearly states chronic gout in the elbow is due to a specific drug, and tophaceous deposits are present. This code is appropriate when the laterality of the affected elbow is not specified in the medical record. Supporting documentation should include a physician's diagnosis of drug-induced gout, mention of chronic presentation, presence of tophi, and involvement of the elbow.

• Ensure the documentation explicitly links the gout to a drug and specifies "chronic" and "tophaceous."
• Do not use this code if the laterality (right or left elbow) is documented; instead, select the more specific code.
• Always sequence the drug-induced gout code first, followed by an external cause code (T36-T50) to identify the specific drug responsible.