M87.131

HCC Category Mapping

What This Code Means

Death of bone tissue in the right radius (forearm bone) caused by medication side effects.

Coding Tips

• •Verify the specific drug causing osteonecrosis in the medical record; common culprits include corticosteroids and bisphosphonates
• •Ensure laterality is clearly documented as right; if documentation is unclear, query the provider before coding

Clinical Significance

Drug-induced osteonecrosis of the right radius indicates medication-related bone death that can compromise forearm function and grip strength. This laterality-specific diagnosis is crucial for tracking functional outcomes and planning targeted interventions for the affected extremity.

Documentation Requirements

• ✓Clear identification of right radius as the affected bone
• ✓Specific medication or drug class responsible for osteonecrosis
• ✓Imaging studies confirming bone necrosis (MRI preferred for early detection)
• ✓Clinical symptoms including pain, tenderness, or functional limitation
• ✓Timeline of drug exposure relative to symptom onset
• ✓Assessment of impact on activities of daily living
• ✓Treatment modalities including conservative vs surgical management
• ✓Provider statement establishing drug causation

Commonly Confused Codes