M72.6

Billable

Necrotizing fasciitis

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 serious, rapidly spreading bacterial infection of the tissue layers beneath the skin that can cause severe tissue death and requires urgent medical treatment.

Coding Tips

•This is a medical emergency; coordinate coding with sepsis codes if present (R65.2x)
•Specify anatomical site and laterality; document causative organism when identified for complete coding

Clinical Significance

Necrotizing fasciitis is a life-threatening soft tissue infection requiring immediate aggressive treatment including surgical debridement and intensive antimicrobial therapy. This diagnosis represents a medical emergency with high mortality risk and significant long-term morbidity potential, requiring intensive monitoring and multidisciplinary care.

Documentation Requirements

✓Clinical diagnosis of necrotizing fasciitis with tissue necrosis
✓Surgical findings or pathological confirmation of fascial involvement
✓Documentation of rapid progression and systemic toxicity
✓Microbiological studies and culture results when available
✓Evidence of tissue destruction and necrosis
✓Treatment with surgical debridement and antibiotics
✓Assessment of extent and depth of infection

Use Additional Code

code (B95.-, B96.-) to identify causative organism

Commonly Confused Codes

L03.90 — Cellulitis, unspecified (superficial infection without necrosis)T79.3 — Post-traumatic wound infection (infection without tissue death)L08.9 — Local infection of skin and subcutaneous tissue, unspecified A49.9 — Bacterial infection, unspecified (systemic without tissue necrosis)L97.909 — Non-pressure chronic ulcer (chronic wound without acute infection)

Code Hierarchy

└M72Fibroblastic disorders └M72.6Necrotizing fasciitis

└M72.6Necrotizing fasciitis