Analgesic nephropathy

This code represents kidney damage specifically caused by the chronic overuse or abuse of analgesic medications. It encompasses a spectrum of renal pathologies, including interstitial nephritis, papillary necrosis, and chronic kidney disease, directly attributable to analgesic exposure. The condition results from the toxic effects of these drugs on renal tubules and interstitium.

Use this code when documentation clearly links kidney disease to the long-term intake of analgesic drugs, such as NSAIDs, acetaminophen, or aspirin-containing compounds. This diagnosis is supported by a patient history of chronic analgesic use and clinical findings consistent with renal impairment, often identified through imaging or biopsy.

• Ensure the medical record explicitly states a causal link between analgesic use and nephropathy; "history of analgesic use" alone is insufficient.
• Code any associated chronic kidney disease (CKD) stage as a secondary diagnosis to fully capture the patient's renal status.
• Distinguish from other forms of drug-induced nephropathy; this code is specific to analgesics.