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I72.0

I72.0Aneurysm of carotid artery

Billable / specific codeICD-10-CM

I72.0 is a billable, specific ICD-10-CM code for aneurysm of carotid artery. It is valid for submission on a claim.

Excludes1 — never code together

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

  • aneurysm of internal carotid artery, intracranial portion (I67.1)
  • aneurysm of internal carotid artery NOS (I67.1)

Inclusion terms

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

  • Aneurysm of common carotid artery
  • Aneurysm of external carotid artery
  • Aneurysm of internal carotid artery, extracranial portion

Other codes that can never be billed with I72.0

These codes carry an Excludes1 note pointing at I72.0. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading I72.0 alone.

  • Q28Other congenital malformations of circulatory system

Risk adjustment

I72.0 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Medicare coverage

I72.0 is named in 14 Medicare coverage policies 14 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A52850Billing and Coding: Cardiac Catheterization and Coronary Angiography
  • A52992Billing and Coding: Non-Invasive Cerebrovascular Arterial Studies
  • A56500Billing and Coding: Cardiac Catheterization and Coronary Angiography
  • A56580Billing and Coding: Computerized Axial Tomography (CT), Thorax

How I72.0 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to I72.0.

  • Aneurysmcarotid artery(common) (external)
  • Aneurysmneck
  • Aneurysmcarotid arteryinternalextracranial portion

Related codes at this level

Codes that share I72. If I72.0 is not quite right, the correct code is usually one of these.

Questions about I72.0

Is I72.0 a billable ICD-10-CM code?
Yes. I72.0 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does I72.0 sit in the tabular list?
Diseases of the circulatory system (I00-I99), in the block Diseases of arteries, arterioles and capillaries (I70-I79).
What cannot be coded together with I72.0?
I72.0 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.
ICD-10-CMFY2026-Apr· effective April 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.