I46

Header — not billable

Cardiac arrest

The ICD-10 code for cardiac arrest is I46.

I46 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 3 more specific codes below.

Clinical notes

Excludes2 (not included here)

An Excludes2 note means the excluded condition is not part of this one, but a patient can have both at the same time — in that case both codes may be reported together.

cardiogenic shock (R57.0)

Documentation support

General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.

•This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
•Laterality-specific codes exist for this condition — confirm the affected side is documented.
•As a general rule, code to the highest level of specificity supported by the documentation in the medical record.

I46

Clinical notes

Excludes2 (not included here)

Documentation support

Child codes under I46

Related codes in this category