M86.342

Billable

Chronic multifocal osteomyelitis, left hand

HCC Category Mapping

V28HCC 92 — Bone/Joint/Muscle Infections/Necrosis

0.209

V24HCC 39 — Bone/Joint/Muscle Infections/Necrosis

0.482

ESRDHCC 39 — Bone/Joint/Muscle Infections/Necrosis

0.000

What This Code Means

A chronic bone infection affecting multiple areas of the bones in the left hand, including the metacarpals and phalanges.

Coding Tips

•Verify left hand involvement is explicitly documented in the clinical notes
•Ensure multifocal involvement is confirmed before coding

Clinical Significance

This code captures chronic multifocal osteomyelitis specifically affecting the left hand, a condition that significantly impacts fine motor function and activities of daily living. The multifocal nature indicates extensive disease requiring comprehensive treatment and rehabilitation.

Documentation Requirements

✓Clear documentation of left hand bone involvement
✓Evidence supporting chronic nature (>6 weeks or recurrent)
✓Confirmation of multifocal pattern in hand bones
✓Radiographic evidence of chronic osteomyelitic changes
✓Functional assessment of left hand capabilities
✓Laboratory markers consistent with chronic infection
✓Treatment history including antibiotics and surgical interventions
✓Clinical correlation with chronic multifocal osteomyelitis diagnosis

Commonly Confused Codes

M86.142 — Acute osteomyelitis of left hand, acute vs chronic timing M86.341 — Same condition but right-sided M86.442 — Chronic osteomyelitis with draining sinus of left hand M86.542 — Other chronic hematogenous osteomyelitis of left hand M79.603 — Pain in left arm, lacks infectious component