MCMedicalCodingSoftware
Free trial
I77.81

I77.81: Aortic ectasia

Non-billable headerICD-10-CM

I77.81 is a non-billable header ICD-10-CM code for aortic ectasia. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1: never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

  • aortic aneurysm and dissection (I71.-)

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Ectasis aorta

Excludes2 inherited from the categories above I77.81

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

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.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead I77.81

4 child codes. Green means billable.

Other codes under I77.8

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.