Is ICD-10-CM code I34 billable?

No, I34 (Nonrheumatic mitral valve disorders) is a non-billable ICD-10-CM code. It must be coded to a more specific subcategory before it can be used for reimbursement.

What chapter does ICD-10-CM code I34 belong to?

I34 belongs to Chapter 9 of the ICD-10-CM tabular list: I00–I99 (Diseases of the Circulatory System).

I34

Non-Billable

ChapterI00–I99

Rankcategory

Description

Nonrheumatic mitral valve disorders

About ICD-10-CM code I34

I34 is the ICD-10-CM diagnosis code for Nonrheumatic mitral valve disorders. It sits in I00-I99 Diseases of the Circulatory System, within Other forms of heart disease (I30-I5A). I34 is not billable on its own, coders must choose one of its more specific child codes instead.

Use a more specific code (4 billable, 1 non-billable)

I34.0Nonrheumatic mitral (valve) insufficiency I34.1Nonrheumatic mitral (valve) prolapse I34.2Nonrheumatic mitral (valve) stenosis I34.8Other nonrheumatic mitral valve disordershas subcodes I34.9Nonrheumatic mitral valve disorder, unspecified

Metadata & Insights

•Non-billable category (requires more specific sub-code).
•Chapter 9: Diseases of the Circulatory System (I00-I99).

CH9 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)

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.-)

Instructional Notes

Excludes1(Not coded here. Use a different code.)

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.-)

Clinical Hierarchy

BillableHas subcodes

CH9Diseases of the circulatory system (I00-I99)

I30-I5AOther forms of heart disease (I30-I5A)

I34Nonrheumatic mitral valve disordersNot billable

I34.0Nonrheumatic mitral (valve) insufficiencyBillable

I34.1Nonrheumatic mitral (valve) prolapseBillable

I34.2Nonrheumatic mitral (valve) stenosisBillable

I34.8Other nonrheumatic mitral valve disordersSubcodes

I34.9Nonrheumatic mitral valve disorder, unspecifiedBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to I34:

chapterCH9

Diseases of the circulatory system (I00-I99)

View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

Find Procedures (ICD-10-PCS)

Find surgical and procedural codes related to Nonrheumatic mitral valve disorders.

Search PCS Codes