2026 ICD-10-CM Diagnosis Code I36Nonrheumatic tricuspid valve disorders

ICD-10-CM Codes›I00–I99›I30-I5A›I36

ICD-10-CM I36
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

I36 is a non-billable ICD-10-CM category code for nonrheumatic tricuspid valve disorders, so it cannot be submitted on claims. Use a more specific code from this category instead, such as I36.0, I36.1, I36.2, and I36.8.

Code Identity

ICD-10-CM Code
I36
Billable Status
No — Non-Billable Category
Code Describes
Nonrheumatic tricuspid valve disorders
Chapter
I30-I5A
Other forms of heart disease

Code Classification

ChapterI00–I99Diseases of the circulatory system
SectionI30-I5AOther forms of heart disease
CategoryI36Nonrheumatic tricuspid valve disorders
This CodeI36Nonrheumatic tricuspid valve disorders

Specific Coding for Nonrheumatic tricuspid valve disordersOverview

Non-specific codes like I36 require more characters. Use one of these billable codes instead:

  • Use I36.0 for Nonrheumatic tricuspid (valve) stenosis

  • Use I36.1 for Nonrheumatic tricuspid (valve) insufficiency

  • Use I36.2 for Nonrheumatic tricuspid (valve) stenosis with insufficiency

  • Use I36.8 for Other nonrheumatic tricuspid valve disorders

  • Use I36.9 for Nonrheumatic tricuspid valve disorder, unspecified

Tabular List NotesGuidance

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

Type 1 Excludes

  • tricuspid valve disorders of unspecified cause I07
  • tricuspid valve disorders specified as congenital Q22.4 Q22.8 Q22.9
  • tricuspid valve disorders specified as rheumatic I07
  • tricuspid valve disorders with aortic and/or mitral valve involvement I08

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 I36Overview

Is I36 (Nonrheumatic tricuspid valve disorders) a billable code?

No. This is a category header that groups the codes for nonrheumatic tricuspid valve disorders, and headers cannot be submitted on claims. Claims for nonrheumatic tricuspid valve disorders need a more specific code from this category, such as I36.0, I36.1, and I36.2.