I46 – Cardiac arrest
ICD-10-CM 2027 diagnosis code · Other forms of heart disease
ICD-10-CM code
I46
- Code
I46(claims format:I46)- Description
- Cardiac arrest
- 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 I46
I46 is a header code and cannot be used on claims. Choose the most specific code:
Notes for I46
Excludes2 (not included here):
- cardiogenic shock (R57.0)
Frequently asked questions
What is ICD-10 code I46?
I46 is the ICD-10-CM code for cardiac arrest, in the block I30-I5A (Other forms of heart disease).
Is I46 a billable code?
No. I46 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.