Diagnosis Code: I40

Short Description: Acute myocarditis

Long Description: Acute myocarditis

The code I40 is NOT VALID for claim submission

Code Classification:

• Diseases of the circulatory system (I00–I99)
  • Other forms of heart disease (I30-I5A)
    • Acute myocarditis (I40)
      • I40 Acute myocarditis

Code Version: 2022 ICD-10-CM

References to Index of Diseases and Injuries

The code I40 has the following ICD-10-CM references to the Index of Diseases and Injuries

• Includes Notes:
  • subacute myocarditis
• Type 1 Excludes Notes:
  • acute rheumatic myocarditis (@I01.2*)

Similar Codes

This page was last updated on: 10/1/2023

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