Is I35.2 a billable ICD-10-CM code?

Yes. I35.2 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does I35.2 sit in the tabular list?

Diseases of the circulatory system (I00-I99), in the block Other forms of heart disease (I30-I5A).

I35.2

I35.2 — Nonrheumatic aortic (valve) stenosis with insufficiency

Billable / specific codeICD-10-CM

I35.2 is a billable, specific ICD-10-CM code for nonrheumatic aortic (valve) stenosis with insufficiency. It is valid for submission on a claim.

Excludes2 inherited from the categories above I35.2

Also inherited, and the opposite of Excludes1: these conditions are not part of I35.2, but a patient can have both, so you may code both.

Written on I35 — Nonrheumatic aortic valve disorders

aortic valve disorder of unspecified cause but with diseases of mitral and/or tricuspid valve(s) (I08.-)
aortic valve disorder specified as congenital (Q23.0, Q23.1)
aortic valve disorder specified as rheumatic (I06.-)
hypertrophic subaortic stenosis (I42.1)

Risk adjustment

I35.2 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

I35.2 is named in 33 Medicare coverage policies — 33 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
A52850Billing and Coding: Cardiac Catheterization and Coronary Angiography
A52868Billing and Coding: Transesophageal Echocardiography (TEE)
A52992Billing and Coding: Non-Invasive Cerebrovascular Arterial Studies

How I35.2 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 I35.2.

Stenosis, stenotic›aortic›with insufficiency
Insufficiency, insufficient›aortic›with›stenosis

Code history

I35.2 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Related codes at this level

Codes that share I35. If I35.2 is not quite right, the correct code is usually one of these.

Questions about I35.2

Is I35.2 a billable ICD-10-CM code?: Yes. I35.2 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does I35.2 sit in the tabular list?: Diseases of the circulatory system (I00-I99), in the block Other forms of heart disease (I30-I5A).