I50 – Heart failure
ICD-10-CM 2027 diagnosis code · Other forms of heart disease
ICD-10-CM code
I50
- Code
I50(claims format:I50)- Description
- Heart failure
- Billable
- No – use a more specific code below
- 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
Billable codes under I50
I50 is a header code and cannot be used on claims. Choose the most specific code:
- I50.1 – Left ventricular failure, unspecifiedBillable
- I50.2 – Systolic (congestive) heart failureHeader (more codes below)
- I50.3 – Diastolic (congestive) heart failureHeader (more codes below)
- I50.4 – Combined systolic (congestive) and diastolic (congestive) heart failureHeader (more codes below)
- I50.8 – Other heart failureHeader (more codes below)
- I50.9 – Heart failure, unspecifiedBillable
Notes for I50
Code first:
- heart failure complicating abortion or ectopic or molar pregnancy (O00-O07, O08.8)
- heart failure due to hypertension (I11.0)
- heart failure due to hypertension with chronic kidney disease (I13.-)
- heart failure following surgery (I97.13-)
- obstetric surgery and procedures (O75.4)
- rheumatic heart failure (I09.81)
Frequently asked questions
What is ICD-10 code I50?
I50 is the ICD-10-CM code for heart failure, in the block I30-I5A (Other forms of heart disease).
Is I50 a billable code?
No. I50 is a header code with more specific child codes; report one of the billable codes listed above.
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.