All ICD10 Codes

I35

Non-Billable
ChapterI00–I99
Rankcategory
Official Description

Nonrheumatic aortic valve disorders

Use a more specific code (5 billable)
I35.0Nonrheumatic aortic (valve) stenosisI35.1Nonrheumatic aortic (valve) insufficiencyI35.2Nonrheumatic aortic (valve) stenosis with insufficiencyI35.8Other nonrheumatic aortic valve disordersI35.9Nonrheumatic aortic 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

Excludes2(Not included here. Code separately if applicable.)
  • aortic valve disorder of unspecified cause but with diseases of mitral and/or tricuspid valve(s) (I08.-)
  • aortic valve disorder specified as congenital (Q23.0, Q23.1)
  • aortic valve disorder specified as rheumatic (I06.-)
  • hypertrophic subaortic stenosis (I42.1)
Code Also
  • , if applicable, bicuspid aortic valve (Q23.81)

Clinical Hierarchy

BillableHas subcodes
CH9Diseases of the circulatory system (I00-I99)
I30-I5AOther forms of heart disease (I30-I5A)
I35Nonrheumatic aortic valve disordersNot billable
I35.0Nonrheumatic aortic (valve) stenosisBillable
I35.1Nonrheumatic aortic (valve) insufficiencyBillable
I35.2Nonrheumatic aortic (valve) stenosis with insufficiencyBillable
I35.8Other nonrheumatic aortic valve disordersBillable
I35.9Nonrheumatic aortic valve disorder, unspecifiedBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to I35:

chapterCH9
Diseases of the circulatory system (I00-I99)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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