MCMedicalCodingSoftware
I77.79

I77.79: Dissection of other specified artery

Billable / specific codeICD-10-CM

I77.79 is a billable, specific ICD-10-CM code for dissection of other specified artery. It is valid for submission on a claim.

Check I77.79 with the rest of the claim: free scrubber

Excludes2 inherited from the categories above I77.79

Not part of this code, but both may be coded when both are present.

Written on I77.7: Other arterial dissection

  • dissection of aorta (I71.0-)
  • dissection of coronary artery (I25.42)

Written on I77: Other disorders of arteries and arterioles

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

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

I77.79 is named in 14 Medicare coverage policies: 14 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A52850Billing and Coding: Cardiac Catheterization and Coronary Angiography
  • A56500Billing and Coding: Cardiac Catheterization and Coronary Angiography
  • A56697Billing and Coding: Non-Invasive Vascular Studies
  • A56722Billing and Coding: Intraoperative Neurophysiological Testing

Alphabetic index entries that lead here

  • Dissection›artery›specified NEC

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under I77.7

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.