M87.09
BillableIdiopathic aseptic necrosis of bone, multiple sites
HCC Category Mapping
V28HCC 92 — Bone/Joint/Muscle Infections/Necrosis
0.209V24HCC 39 — Bone/Joint/Muscle Infections/Necrosis
0.482ESRDHCC 39 — Bone/Joint/Muscle Infections/Necrosis
0.000RxHCCHCC 80 — Bone/Joint/Muscle Infections/Necrosis
0.000What This Code Means
Death of bone tissue affecting multiple bones throughout the body, occurring without a known cause.
Coding Tips
- •This code indicates involvement of 2 or more separate bone sites
- •Consider documenting which specific sites are affected for clinical clarity
Clinical Significance
Idiopathic aseptic necrosis affecting multiple bone sites represents a systemic condition of bone death without infection or identifiable cause, indicating significant disease burden requiring comprehensive management. This diagnosis suggests a more severe condition that may impact multiple functional areas and require multidisciplinary care coordination.
Documentation Requirements
- ✓Documentation of multiple bone sites affected
- ✓Specification of at least two distinct anatomical locations
- ✓Confirmation of aseptic nature across all sites
- ✓Documentation that cause is idiopathic/unknown
- ✓Imaging evidence of osteonecrosis at multiple locations
- ✓Clinical findings consistent with multi-site involvement
- ✓Exclusion of systemic causes that could explain multiple sites
- ✓Comprehensive functional assessment
Commonly Confused Codes
M87.19 — Drug-induced osteonecrosis of multiple sites (requires medication cause)M87.29 — Trauma-related osteonecrosis of multiple sites (requires injury history)M87.39 — Other secondary osteonecrosis of multiple sites (requires underlying condition)Single-site idiopathic osteonecrosis codes (use when only one site affected)M86.9 — Osteomyelitis unspecified (infectious process)
Code Hierarchy
└M87Osteonecrosis└M87.0Idiopathic aseptic necrosis of bone└M87.09Idiopathic aseptic necrosis of bone, multiple sites
└M87.09Idiopathic aseptic necrosis of bone, multiple sites