I77.5 Necrosis of artery

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Applies from I77 Other disorders of arteries and arterioles

Excludes2 (not included here)

• collagen (vascular) diseases (M30-M36)
• hypersensitivity angiitis (M31.0)
• pulmonary artery (I28.-)

Risk adjustment (HCC)

• CMS-HCC V22: HCC 108 — Vascular Disease
• ESRD V24: HCC 108

MS-DRG index

Defines the logic of DRG(s) 299-301 in MDC 05.

Approximate ICD-9-CM (GEMs)

• 447.5 Necrosis of artery (approximate)

Diagnosis Index entries for I77.5

• Arteriolitis › necrotizing, kidney
• Necrosis, necrotic (ischemic) › artery

Nearby codes

• I77.0 Arteriovenous fistula, acquired
• I77.1 Stricture of artery
• I77.2 Rupture of artery
• I77.3 Arterial fibromuscular dysplasia
• I77.4 Celiac artery compression syndrome
• I77.5 Necrosis of artery (this code)
• I77.6 Arteritis, unspecified
• I77.7 Other arterial dissection
• I77.70 Dissection of unspecified artery
• I77.71 Dissection of carotid artery
• I77.72 Dissection of iliac artery