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v1.0.0
ICD-10 Guide
ICD-10 CodesI51.4

I51.4

Billable

Myocarditis, unspecified

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/06/2025

Code Description

ICD-10 I51.4 is a billable code used to indicate a diagnosis of myocarditis, unspecified.

Key Diagnostic Point:

Myocarditis, unspecified, is an inflammatory condition of the heart muscle that can result from infections, autoimmune diseases, or exposure to toxins. Symptoms may include chest pain, fatigue, and heart failure. Diagnosis is typically confirmed through clinical evaluation, imaging, and sometimes biopsy. Treatment focuses on managing symptoms and addressing the underlying cause, which may include medications or lifestyle changes.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • underlying cause
  • severity of symptoms

Audit Risk Factors

    Specialty Focus

    Related ICD-10 Codes

    Related CPT Codes

    93303CPT Code

    Clinical Scenario

    Documentation Requirements

    ICD-10 Impact

    Diagnostic & Documentation Impact

    Enhanced Specificity

    ICD-10 Improvements

    Can lead to chronic heart failure or sudden cardiac death if untreated.

    ICD-9 vs ICD-10

    Can lead to chronic heart failure or sudden cardiac death if untreated.

    Reimbursement & Billing Impact

    Can lead to chronic heart failure or sudden cardiac death if untreated.

    Resources

    Clinical References

    • •
      Myocarditis Foundation Resources

    Coding & Billing References

    • •
      Myocarditis Foundation Resources

    Frequently Asked Questions

    What causes myocarditis?

    Common causes include viral infections, autoimmune diseases, and certain medications.