Other drug-induced osteomalacia in adults

This code signifies osteomalacia in adult patients that is caused by the adverse effects of medications, excluding those specifically induced by antineoplastic drugs. It represents a metabolic bone disorder characterized by inadequate mineralization of newly formed bone matrix, leading to bone softening and increased fracture risk, directly attributable to drug therapy.

Apply this code when documentation clearly links an adult patient's osteomalacia to a specific drug, other than antineoplastic agents. This typically involves a history of medication use, clinical signs of osteomalacia (e.g., bone pain, muscle weakness), and diagnostic findings (e.g., low bone mineral density, elevated alkaline phosphatase) where other causes have been ruled out.

• Always identify the specific drug causing the osteomalacia by using an additional code from T36-T50 (Adverse effects of drugs, medicaments and biological substances).
• Ensure the patient is an adult; pediatric cases of drug-induced osteomalacia would be coded differently.
• Distinguish from osteomalacia due to antineoplastic drugs (M83.4) and other forms of osteomalacia not drug-induced.