I34.2

Nonrheumatic mitral (valve) stenosis

Billable code

This code does not map to a risk-adjusting HCC in the loaded models.

Coding notes

Excludes 1 never coded together · Excludes 2 may co-exist

This code · I34.2
Code also

, if applicable: nonrheumatic mitral (valve) annulus calcification (I34.81)

Inherited from I34Nonrheumatic mitral valve disorders
Excludes 1

mitral valve disease (I05.9) mitral valve failure (I05.8) mitral valve stenosis (I05.0) mitral valve disorder of unspecified cause with diseases of aortic and/or tricuspid valve(s) (I08.-) mitral valve disorder of unspecified cause with mitral stenosis or obstruction (I05.0) mitral valve disorder specified as congenital (Q23.2, Q23.9) mitral valve disorder specified as rheumatic (I05.-)

Inherited from chapter 9Diseases of the circulatory system
Excludes 2

certain conditions originating in the perinatal period (P04-P96) certain infectious and parasitic diseases (A00-B99) complications of pregnancy, childbirth and the puerperium (O00-O9A) congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99) endocrine, nutritional and metabolic diseases (E00-E88) injury, poisoning and certain other consequences of external causes (S00-T88) neoplasms (C00-D49) symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94) systemic connective tissue disorders (M30-M36) transient cerebral ischemic attacks and related syndromes (G45.-)

Official Guidelines for I34.2

FY 2026 ›
I.C.9Chapter-specific guidanceChapter 9: Diseases of the Circulatory System (I00-I99)

Subsections

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