I73.01
BillableRaynaud's syndrome with gangrene
HCC Category Mapping
V28HCC 263 — Atherosclerosis of the Extremities with Ulceration or Gangrene
0.742V24HCC 106 — Atherosclerosis of the Extremities with Ulceration or Gangrene
0.860ESRDHCC 106 — Atherosclerosis of the Extremities with Ulceration or Gangrene
0.000What This Code Means
A condition where blood vessels in the fingers and toes overreact to cold or stress, causing numbness, color changes, and tissue death (gangrene).
Coding Tips
- •Verify that gangrene is documented; this is a more severe form than I73.00
- •Consider coding additional codes for the specific sites of gangrene if applicable
Clinical Significance
Raynaud's syndrome with gangrene represents the most severe complication of Raynaud's phenomenon, where severe digital vasospasm has progressed to tissue necrosis and gangrene. This indicates advanced vascular compromise that may require amputation and reflects a significantly higher disease burden than uncomplicated Raynaud's. The gangrene component elevates this to a high-impact HCC category.
Documentation Requirements
- ✓Documentation of Raynaud's syndrome as the underlying cause
- ✓Clinical evidence of gangrene (tissue necrosis, demarcation, color changes)
- ✓Location and extent of gangrenous changes
- ✓Primary vs secondary Raynaud's classification with underlying condition if secondary
- ✓Treatment documentation (vasodilators, sympathectomy, wound care, amputation if applicable)
- ✓Vascular studies (digital pressures, cold stimulation testing) if available
Commonly Confused Codes
I73.00 — Raynaud's syndrome without gangrene: does not include tissue necrosis — significantly lower severityI96 — Gangrene, not elsewhere classified: use when gangrene etiology is non-Raynaud'sI70.26x — Atherosclerosis of native arteries of extremities with gangrene: atherosclerotic etiology rather than vasospasticI73.1 — Thromboangiitis obliterans (Buerger's disease): different underlying pathology causing digital ischemia
Code Hierarchy
└I73Other peripheral vascular diseases└I73.0Raynaud's syndrome└I73.01Raynaud's syndrome with gangrene
└I73.01Raynaud's syndrome with gangrene