M86.39
BillableChronic multifocal osteomyelitis, 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
0.000What This Code Means
A chronic bone infection affecting multiple areas throughout the body in more than one anatomical region.
Coding Tips
- •This code indicates involvement of multiple sites across different body regions
- •Document all affected sites and consider using additional codes if specific regions are clearly identified
Clinical Significance
Chronic multifocal osteomyelitis affecting multiple sites represents the most severe form of this condition, with infection involving bones across different anatomical regions simultaneously. This diagnosis indicates extensive disease requiring comprehensive, multidisciplinary management with significant morbidity risk.
Documentation Requirements
- ✓Documentation of involvement in multiple distinct anatomical sites
- ✓Evidence of chronicity across all affected sites (>6 weeks or recurrent)
- ✓Confirmation of multifocal pattern within multiple bone regions
- ✓Imaging studies showing chronic changes at multiple locations
- ✓Comprehensive assessment of functional impact across body regions
- ✓Laboratory markers consistent with systemic chronic infection
- ✓Treatment documentation addressing multiple site complexity
- ✓Provider assessment confirming extensive multifocal osteomyelitis
Commonly Confused Codes
M86.30 — Chronic multifocal osteomyelitis, unspecified site, single regionM86.69 — Other chronic osteomyelitis, multiple sites, lacks multifocal componentM86.19 — Acute osteomyelitis, multiple sites, differs by chronicityM86.49 — Chronic osteomyelitis with draining sinus, multiple sitesM86.59 — Other chronic hematogenous osteomyelitis, multiple sites
Code Hierarchy
└M86Osteomyelitis└M86.3Chronic multifocal osteomyelitis└M86.39Chronic multifocal osteomyelitis, multiple sites
└M86.39Chronic multifocal osteomyelitis, multiple sites