Osteonecrosis due to drugs, left shoulder

This code signifies the death of bone tissue in the left shoulder joint, specifically caused by the use of certain medications. This condition, also known as avascular necrosis, results from an interruption of blood supply to the bone, leading to its collapse.

Use this code when documentation clearly indicates osteonecrosis affecting the left shoulder and explicitly links its etiology to drug therapy (e.g., corticosteroids, bisphosphonates). Supporting documentation should include imaging reports (MRI, X-ray) confirming bone necrosis and a detailed medication history.

• Always specify laterality (left, right, bilateral) for shoulder conditions.
• Ensure the medical record clearly states the drug as the causative agent for osteonecrosis.
• Consider sequencing this code after the primary diagnosis if the drug-induced osteonecrosis is a complication of another condition.