M86.362
BillableChronic multifocal osteomyelitis, left tibia and fibula
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 of the left shin bone and smaller bone next to it, characterized by persistent inflammation and potential drainage.
Coding Tips
- •Verify laterality is documented as 'left' in the medical record before assigning this code
- •Confirm the infection is multifocal (multiple sites) and chronic (long-standing) rather than acute
Clinical Significance
This diagnosis captures chronic multifocal osteomyelitis of the left tibia and fibula, a serious condition affecting both bones of the lower leg with significant implications for mobility and function. The multifocal nature indicates extensive disease requiring aggressive treatment and monitoring.
Documentation Requirements
- ✓Clear documentation of left tibia and fibula involvement
- ✓Evidence supporting chronic nature (duration >6 weeks or recurrent)
- ✓Confirmation of multifocal pattern in both bones
- ✓Imaging studies demonstrating chronic osteomyelitic changes
- ✓Functional assessment of left lower extremity
- ✓Laboratory markers consistent with chronic infection
- ✓Treatment history including medical and surgical approaches
- ✓Clinical correlation with chronic multifocal osteomyelitis
Commonly Confused Codes
M86.162 — Acute osteomyelitis of left tibia and fibula, acute presentationM86.361 — Same condition but right-sidedM86.462 — Chronic osteomyelitis with draining sinus of left tibia/fibulaM86.562 — Other chronic hematogenous osteomyelitis, different etiologyM79.604 — Pain in left leg, lacks infectious component
Code Hierarchy
└M86Osteomyelitis└M86.3Chronic multifocal osteomyelitis└M86.36Chronic multifocal osteomyelitis, tibia and fibula└M86.362Chronic multifocal osteomyelitis, left tibia and fibula
└M86.362Chronic multifocal osteomyelitis, left tibia and fibula