ICD-10-CM code · FY2027

I09.1 Rheumatic diseases of endocardium, valve unspecified

BillableValid for claims as a specific diagnosis code

About I09.1

Code
I09.1
Billable
Yes
Short description
Rheumatic diseases of endocardium, valve unspecified
Category
I09 Other rheumatic heart diseases
Block
I05-I09 Chronic rheumatic heart diseases
Chapter
9 Diseases of the circulatory system
Code set
FY2027, October 1, 2026 to September 30, 2027
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Coding notes for I09.1

Applicable to Other names for conditions reported with this code.

  • Rheumatic endocarditis (chronic)
  • Rheumatic valvulitis (chronic)

Excludes1 Not coded here: never report these together with this code (use the code given instead).

  • endocarditis, valve unspecified (I38)
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 I09

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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.