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M90.59

Billable

Osteonecrosis in diseases classified elsewhere, multiple sites

HCC Category Mapping

V28HCC 92Bone/Joint/Muscle Infections/Necrosis
0.209
V24HCC 39Bone/Joint/Muscle Infections/Necrosis
0.482
ESRDHCC 39Bone/Joint/Muscle Infections/Necrosis
0.000
RxHCCHCC 80Bone/Joint/Muscle Infections/Necrosis
0.000

What This Code Means

Bone death (osteonecrosis) affecting multiple bone sites caused by another disease. The bone tissue dies in several locations as a secondary effect of an underlying condition.

Coding Tips

  • Use this code when osteonecrosis is documented in multiple sites rather than a single location
  • Always pair with a secondary diagnosis code for the underlying disease causing the osteonecrosis

Clinical Significance

Secondary osteonecrosis affecting multiple anatomical sites represents widespread bone death caused by an underlying systemic disease, indicating severe medical complexity. This diagnosis has major risk adjustment implications due to extensive functional limitations and intensive care coordination requirements.

Documentation Requirements

  • Documentation of underlying classified disease causing widespread osteonecrosis
  • Clear evidence of bone necrosis affecting multiple anatomical sites
  • Imaging studies confirming osteonecrotic changes in multiple locations
  • Clinical correlation between systemic disease and multifocal bone death
  • Comprehensive treatment plan addressing systemic condition and multiple sites
  • Assessment of cumulative functional impact from multiple site involvement
  • Provider documentation confirming secondary nature and multiple site involvement
  • Monitoring plan for progression and treatment response across sites

Commonly Confused Codes

Code Hierarchy

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