M87.89

HCC Category Mapping

What This Code Means

Death of bone tissue occurring in multiple locations throughout the body simultaneously. This systemic condition indicates widespread bone involvement and requires comprehensive management.

Coding Tips

• •Use this code when osteonecrosis affects two or more distinct anatomical sites
• •Document all affected sites and consider if an underlying systemic cause (e.g., HIV, sickle cell disease) should be coded separately

Clinical Significance

Multiple site osteonecrosis indicates systemic avascular bone death affecting multiple anatomical locations simultaneously, suggesting severe underlying pathophysiology requiring intensive management. This represents the most severe form of osteonecrosis with significant disability potential.

Documentation Requirements

• ✓Documentation of osteonecrosis in multiple distinct anatomical sites
• ✓Comprehensive imaging studies of all affected areas
• ✓Clear exclusion of traumatic, infectious, or radiation-induced causes
• ✓Functional assessment across all affected body regions
• ✓Comprehensive pain evaluation and disability assessment
• ✓Extensive evaluation for underlying systemic conditions
• ✓Coordinated multidisciplinary care plan
• ✓Staging and prognosis documentation for disease progression

Commonly Confused Codes