I40
I40: Acute myocarditis
Non-billable headerICD-10-CM
I40 is a non-billable header ICD-10-CM code for acute myocarditis. It cannot be billed on its own: choose one of the more specific child codes below.
Excludes1: never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
- acute rheumatic myocarditis (I01.2)
Includes
Conditions this code covers.
- subacute myocarditis
Other codes that can never be billed with I40
Their own Excludes1 notes name this code, so the conflict is not listed above.
- I51.4Myocarditis, unspecified
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Code history
Unchanged in every release from FY2024 to FY2027.
Code to one of these instead I40
4 child codes. Green means billable.