M86.312

Billable

Chronic multifocal osteomyelitis, left shoulder

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 long-standing bone infection affecting multiple bones, specifically involving the left shoulder.

Coding Tips

•This code indicates the left shoulder is one of multiple affected sites; document all other involved locations separately.
•Confirm laterality is documented as 'left' in the medical record.

Clinical Significance

Chronic multifocal osteomyelitis of the left shoulder represents a complex, persistent bone infection requiring intensive medical management and significantly impacting patient functionality. The multifocal nature indicates widespread bone involvement, necessitating comprehensive treatment approaches and long-term monitoring for systemic complications.

Documentation Requirements

✓Explicit documentation of chronic osteomyelitis diagnosis
✓Clear specification of multifocal involvement pattern
✓Precise anatomic identification of left shoulder
✓Clinical evidence of persistent infection (cultures, inflammatory markers)
✓Imaging studies confirming multifocal bone involvement
✓Treatment regimen documentation including antibiotic duration
✓Surgical history and planned interventions
✓Assessment of functional limitations and disability

Commonly Confused Codes

M86.312 — Chronic multifocal osteomyelitis, right shoulder (incorrect laterality)M86.612 — Other chronic osteomyelitis, left shoulder (not multifocal)M86.412 — Chronic osteomyelitis with draining sinus, left shoulder (different type)M25.512 — Pain in left shoulder (symptom, not infectious diagnosis)

Code Hierarchy

└M86Osteomyelitis └M86.3Chronic multifocal osteomyelitis └M86.31Chronic multifocal osteomyelitis, shoulder └M86.312Chronic multifocal osteomyelitis, left shoulder

└M86.312Chronic multifocal osteomyelitis, left shoulder