I51.4
BillableMyocarditis, unspecified
I51.4 is the ICD-10-CM code for Myocarditis, unspecified. It is a billable, specific code valid for reimbursement.
I00-I99 Diseases of the circulatory system
Includes
- •Chronic (interstitial) myocarditis
- •Myocardial fibrosis
- •Myocarditis NOS
Excludes1 — not coded here
- •acute or subacute myocarditis (I40.-)
Frequently asked questions
- What is ICD-10 code I51.4?
- I51.4 is the ICD-10-CM code for "Myocarditis, unspecified". It falls under I00-I99 Diseases of the circulatory system.
- Is I51.4 a billable code?
- Yes — I51.4 is a billable, specific ICD-10-CM code valid for reimbursement.
- What is excluded from I51.4?
- Excludes1 (not coded here): acute or subacute myocarditis (I40.-).
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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