I39

Billable

Endocarditis and heart valve disorders in diseases classified elsewhere

I39 is the ICD-10-CM code for Endocarditis and heart valve disorders in diseases classified elsewhere. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
I00-I99
Edition
FY2026

I00-I99 Diseases of the circulatory system

Excludes1 — not coded here

  • endocardial involvement in:
  • candidiasis (B37.6)
  • gonococcal infection (A54.83)
  • Libman-Sacks disease (M32.11)
  • listerosis (A32.82)
  • meningococcal infection (A39.51)
  • rheumatoid arthritis (M05.31)
  • syphilis (A52.03)
  • tuberculosis (A18.84)
  • typhoid fever (A01.02)

Code first

  • underlying disease, such as:
  • Q fever (A78)

Frequently asked questions

What is ICD-10 code I39?
I39 is the ICD-10-CM code for "Endocarditis and heart valve disorders in diseases classified elsewhere". It falls under I00-I99 Diseases of the circulatory system.
Is I39 a billable code?
Yes — I39 is a billable, specific ICD-10-CM code valid for reimbursement.
What is excluded from I39?
Excludes1 (not coded here): endocardial involvement in:; candidiasis (B37.6); gonococcal infection (A54.83); Libman-Sacks disease (M32.11).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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