NPI Atlas

I39 – Endocarditis and heart valve disorders in diseases classified elsewhere

ICD-10-CM 2027 diagnosis code · Other forms of heart disease

Billable code

ICD-10-CM code I39

Code: I39 (claims format: I39)
Description: Endocarditis and heart valve disorders in diseases classified elsewhere
Short description: Endocarditis and heart valve disord in dis classd elswhr
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 9. Diseases of the circulatory system (I00-I99)
Block: I30-I5A Other forms of heart disease

Notes for I39

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)

Index terms for I39

Entries in the ICD-10-CM alphabetic index that lead to this code:

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, in the block I30-I5A (Other forms of heart disease).

Is I39 a billable code?

Yes. I39 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.