I34.2 — Nonrheumatic mitral (valve) stenosis
I34.2 is a billable, specific ICD-10-CM code for nonrheumatic mitral (valve) stenosis. It is valid for submission on a claim.
Code also
Both codes may be needed to describe the encounter fully. Sequencing depends on the reason for the visit.
- , if applicable:
- nonrheumatic mitral (valve) annulus calcification (I34.81)
Risk adjustment
I34.2 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
I34.2 is named in 30 Medicare coverage policies — 30 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 I34.2 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 I34.2.
- Stenosis, stenotic›mitral›specified cause, except rheumatic
Related codes at this level
Codes that share I34. If I34.2 is not quite right, the correct code is usually one of these.
Questions about I34.2
- Is I34.2 a billable ICD-10-CM code?
- Yes. I34.2 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does I34.2 sit in the tabular list?
- Diseases of the circulatory system (I00-I99), in the block Other forms of heart disease (I30-I5A).