2026 ICD-10-CM Diagnosis Code I37Nonrheumatic pulmonary valve disorders

ICD-10-CM Codes›I00–I99›I30-I5A›I37

ICD-10-CM I37
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

I37 is a non-billable ICD-10-CM category code for nonrheumatic pulmonary valve disorders, so it cannot be submitted on claims. Use a more specific code from this category instead, such as I37.0, I37.1, I37.2, and I37.8.

Code Identity

ICD-10-CM Code
I37
Billable Status
No — Non-Billable Category
Code Describes
Nonrheumatic pulmonary valve disorders
Chapter
I30-I5A
Other forms of heart disease

Code Classification

ChapterI00–I99Diseases of the circulatory system
SectionI30-I5AOther forms of heart disease
CategoryI37Nonrheumatic pulmonary valve disorders
This CodeI37Nonrheumatic pulmonary valve disorders

Specific Coding for Nonrheumatic pulmonary valve disordersOverview

Non-specific codes like I37 require more characters. Use one of these billable codes instead:

  • Use I37.0 for Nonrheumatic pulmonary valve stenosis

  • Use I37.1 for Nonrheumatic pulmonary valve insufficiency

  • Use I37.2 for Nonrheumatic pulmonary valve stenosis with insufficiency

  • Use I37.8 for Other nonrheumatic pulmonary valve disorders

  • Use I37.9 for Nonrheumatic pulmonary valve disorder, unspecified

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Type 1 Excludes

  • pulmonary valve disorder specified as congenital Q22.1 Q22.2 Q22.3
  • pulmonary valve disorder specified as rheumatic I09.89

Patient EducationClinical

Heart Valve Diseases

Heart valve disease happens when one or more of your heart valves don't work well.

The full article covers:

  • What are heart valve diseases?
  • What are the types of heart valve diseases?
  • What causes heart valve diseases?
  • Who is more likely to develop heart valve diseases?
  • What are the symptoms of heart valve diseases?
  • What other problems can heart valve diseases cause?
  • How is heart valve disease diagnosed?
  • What are the treatments for heart valve diseases?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About I37Overview

Is I37 (Nonrheumatic pulmonary valve disorders) a billable code?

No. This is a category header that groups the codes for nonrheumatic pulmonary valve disorders, and headers cannot be submitted on claims. Claims for nonrheumatic pulmonary valve disorders need a more specific code from this category, such as I37.0, I37.1, and I37.2.