I46: Cardiac arrest
Codes under I46 (Cardiac arrest). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| I46.2 | Cardiac arrest due to underlying cardiac condition | ✓ |
| I46.2 | Cardiac arrest due to underlying cardiac condition | ✓ |
| I46.8 | Cardiac arrest due to other underlying condition | ✓ |
| I46.8 | Cardiac arrest due to other underlying condition | ✓ |
| I46.9 | Cardiac arrest, cause unspecified | ✓ |
| I46.9 | Cardiac arrest, cause unspecified | ✓ |
Frequently asked questions
What is ICD-10-CM code I46?
I46 is an ICD-10-CM category covering Cardiac arrest. It contains 6 more specific diagnosis codes, 6 of which are billable.
Is I46 a billable code?
No — I46 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example I46.2 — Cardiac arrest due to underlying cardiac condition). 6 of the 6 codes under I46 are billable.
What codes fall under I46?
I46 includes I46.2, I46.2, I46.8, I46.8, I46.9, plus 1 more. See the full list with descriptions and billable status above.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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