I50
⚠ Non-billable
Heart failure
ICD-10-CM · FY2026 · Diseases of the Circulatory System
Code
I50
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Diseases of the Circulatory System
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Official coding notes
From CMS's ICD-10-CM Tabular List.
Excludes2 — not included here, but may code together
- cardiac arrest (I46.-)
- neonatal cardiac failure (P29.0)
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?
ICD-10-CM code I50 represents Heart failure. It is a non-billable header code requiring a more specific subcategory in the Diseases of the Circulatory System chapter, effective October 1, 2025 – September 30, 2026.
Is I50 billable?
No. I50 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is I50 in?
I50 belongs to the Diseases of the Circulatory System chapter (I00–I99) of ICD-10-CM.
Related codes in the I50 category
I50.1
Left ventricular failure, unspecified
Billable
I50.2
Systolic (congestive) heart failure
Non-billable
I50.3
Diastolic (congestive) heart failure
Non-billable
I50.4
Combined systolic (congestive) and diastolic (congestive) heart failure
Non-billable
I50.8
Other heart failure
Non-billable
I50.9
Heart failure, unspecified
Billable
I50.20
Unspecified systolic (congestive) heart failure
Billable
I50.21
Acute systolic (congestive) heart failure
Billable
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