I34

Non-Billable

ChapterI00–I99

Rankcategory

Official Description

Nonrheumatic mitral valve disorders

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

Metadata & Insights

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.-)

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.-)

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

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

chapterCH9

Diseases of the circulatory system (I00-I99)

2026

No direct MS-DRG triggers identified.

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