ICD10
ICD-10 Code I36: Nonrheumatic tricuspid valve disorders
Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026
What is this code?
ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Diseases of the circulatory system (I00-I99).
When is it used?
- May be used when a clinician documents nonrheumatic tricuspid valve disorders in a patient's medical record.
- May appear in hospital records, claims, referrals, and clinical documentation.
- This code may act more like a grouping or parent code, so a more specific child code may be used in final documentation when available.
What it does not mean
- A code alone does not explain severity, treatment plan, or outcome.
- A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
- This entry may represent a broader category rather than the most specific billable code.
Code hierarchy
chapter
9Diseases of the circulatory system (I00-I99)
block
I30-I5AOther forms of heart disease
currentI30-I5A
Official coding notes
Excludes1 (do not code together)
- 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.-)
Where you may see this code
You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen.
Related specialists
CardiologistGeneral Physician
Related codes
Sibling codes
I30Acute pericarditisI31Other diseases of pericardiumI32Pericarditis in diseases classified elsewherebillableI33Acute and subacute endocarditisI34Nonrheumatic mitral valve disordersI35Nonrheumatic aortic valve disordersI37Nonrheumatic pulmonary valve disordersI38Endocarditis, valve unspecifiedbillableI39Endocarditis and heart valve disorders in diseases classified elsewherebillableI40Acute myocarditisI41Myocarditis in diseases classified elsewherebillableI42CardiomyopathyI43Cardiomyopathy in diseases classified elsewherebillableI44Atrioventricular and left bundle-branch blockI45Other conduction disordersI46Cardiac arrestI47Paroxysmal tachycardiaI48Atrial fibrillation and flutterI49Other cardiac arrhythmiasI50Heart failureI51Complications and ill-defined descriptions of heart diseaseI52Other heart disorders in diseases classified elsewherebillableI5ANon-ischemic myocardial injury (non-traumatic)billable
Coding guidelines
Compatibility
Legacy code aligns to an official FY 2026 category. Frontend should resolve to the official category page and surface the billable child codes.
Legacy codes
I36
Replacement codes
I36.0 — Nonrheumatic tricuspid (valve) stenosisI36.1 — Nonrheumatic tricuspid (valve) insufficiencyI36.2 — Nonrheumatic tricuspid (valve) stenosis with insufficiencyI36.8 — Other nonrheumatic tricuspid valve disordersI36.9 — Nonrheumatic tricuspid valve disorder, unspecified
Common synonyms
Nonrheumatic tricuspid valve disorders
Frequently asked questions
About this content
This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.