I46.8: Cardiac arrest due to other underlying condition
I46.8 is a billable, specific ICD-10-CM code for cardiac arrest due to other underlying condition. It is valid for submission on a claim.
Check I46.8 with the rest of the claim: free scrubberCode first
The underlying condition must be sequenced before this code.
- underlying condition
Other codes that can never be billed with I46.8
Their own Excludes1 notes name this code, so the conflict is not listed above.
- R09.2Respiratory arrest
Risk adjustment
I46.8 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 213 Cardio-Respiratory Failure and Shock0.370 RAF
Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score. Look up the whole chart to see which of its HCCs the hierarchy would zero.
Medicare coverage
I46.8 is named in 29 Medicare coverage policies: 29 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A52458Automatic External Defibrillators - Policy Article
- A52850Billing and Coding: Cardiac Catheterization and Coronary Angiography
- A56494Billing and Coding: Cardiovascular Nuclear Medicine
- A56500Billing and Coding: Cardiac Catheterization and Coronary Angiography
Alphabetic index entries that lead here
- Arrest, arrested›cardiac›due to›specified condition NEC
Code history
Unchanged in every release from FY2024 to FY2027.