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I37.1

I37.1Nonrheumatic pulmonary valve insufficiency

Billable / specific codeICD-10-CM

I37.1 is a billable, specific ICD-10-CM code for nonrheumatic pulmonary valve insufficiency. It is valid for submission on a claim.

Inclusion terms

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

  • Nonrheumatic pulmonary valve incompetence
  • Nonrheumatic pulmonary valve regurgitation

Risk adjustment

I37.1 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

I37.1 is named in 24 Medicare coverage policies 24 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
  • A52868Billing and Coding: Transesophageal Echocardiography (TEE)
  • A56423Billing and Coding: Cardiology Non-emergent Outpatient Stress Testing
  • A56476Billing and Coding: Cardiac Radionuclide Imaging

How I37.1 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 I37.1.

  • Incompetency, incompetent, incompetencepulmonary valve(heart)
  • MurmurGraham Steell
  • Regurgitationpulmonary(valve) (heart)
  • Incompetency, incompetent, incompetenceannularpulmonary valve(heart)
  • Insufficiency, insufficientpulmonaryvalve

Related codes at this level

Codes that share I37. If I37.1 is not quite right, the correct code is usually one of these.

Questions about I37.1

Is I37.1 a billable ICD-10-CM code?
Yes. I37.1 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does I37.1 sit in the tabular list?
Diseases of the circulatory system (I00-I99), in the block Other forms of heart disease (I30-I5A).
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.