ICD-10-CM code · FY2027

I35.1 Nonrheumatic aortic (valve) insufficiency

BillableValid for claims as a specific diagnosis code

About I35.1

Code
I35.1
Billable
Yes
Short description
Nonrheumatic aortic (valve) insufficiency
Category
I35 Nonrheumatic aortic valve disorders
Block
I30-I5A Other forms of heart disease
Chapter
9 Diseases of the circulatory system
Code set
FY2027, October 1, 2026 to September 30, 2027
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Coding notes for I35.1

Applicable to Other names for conditions reported with this code.

  • Nonrheumatic aortic (valve) incompetence NOS
  • Nonrheumatic aortic (valve) regurgitation NOS

Also applies, from I35 Nonrheumatic aortic valve disorders

Excludes2 Not part of this condition, but a patient can have both: report both codes when both apply.

  • 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 Another code may be needed as well; the order depends on the encounter.

  • , if applicable, bicuspid aortic valve (Q23.81)
Chapter 9 notes (apply to every code in it)

Excludes2 Not part of this condition, but a patient can have both: report both codes when both apply.

  • 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.-)

Related codes in I35

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ICD-10-CM FY2027 code set, as published by the CDC National Center for Health Statistics (NCHS) and CMS, effective October 1, 2026 to September 30, 2027. Codes, titles and notes are shown as published. Check payer rules and the official guidelines before billing. This page is not medical advice.