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I35

⚠ Non-billable (Header)

Nonrheumatic aortic valve disorders

Diseases of the circulatory system (I00-I99)

⚠️ This is a category header code — not billable. Use a more specific child code below.

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⚠️ Excludes2

direct

May be coded together if both conditions coexist

  • • 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)

Child Codes (5)

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

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Code Information

CodeI35
BillableNo — Header code
CategoryDiseases of the circulatory system (I00-I99)
Excludes10 rule(s)
Excludes24 note(s)
Child codes5

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)