I40 Acute myocarditis

Non-billable header with 4 child codes.

Includes

• subacute myocarditis

Excludes1 (never code together)

• acute rheumatic myocarditis (I01.2)

Applies from I40 Acute myocarditis

Includes

• subacute myocarditis

Excludes1 (never code together)

• acute rheumatic myocarditis (I01.2)

Codes under I40

• I40.0 Infective myocarditis
• I40.1 Isolated myocarditis
• I40.8 Other acute myocarditis
• I40.9 Acute myocarditis, unspecified

Code annotations containing back-references to I40

Back-references to I40

• Type 1 Excludes: I51.4 Myocarditis, unspecified ("acute or subacute myocarditis (I40.-)")
• Code First: I5A Non-ischemic myocardial injury (non-traumatic) ("acute myocarditis (I40.-)")
• Code Also: M35.81 Multisystem inflammatory syndrome ("acute myocarditis (I40.-)")

Back-references to I40

• Type 1 Excludes: I51.4 Myocarditis, unspecified ("acute or subacute myocarditis (I40.-)")
• Code First: I5A Non-ischemic myocardial injury (non-traumatic) ("acute myocarditis (I40.-)")
• Code Also: M35.81 Multisystem inflammatory syndrome ("acute myocarditis (I40.-)")

Nearby codes

• I40 Acute myocarditis (this code)
• I40.0 Infective myocarditis
• I40.1 Isolated myocarditis
• I40.8 Other acute myocarditis
• I40.9 Acute myocarditis, unspecified