I40.9
BillableAcute myocarditis, unspecified
Acute myocarditis, unspecified
Coding Notes
Includes
Conditions included under this code
- subacute myocarditis
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
- acute rheumatic myocarditis (I01.2)
Excludes 2
Conditions not included here, but the patient may have both
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
- systemic connective tissue disorders (M30-M36)
- transient cerebral ischemic attacks and related syndromes (G45.-)
Also Known As / Clinical Terms
Frequently Asked Questions
What is ICD-10 code I40.9?
ICD-10-CM code I40.9 represents "Acute myocarditis, unspecified". It is a billable/specific code that can be used on a claim.
Is I40.9 a billable code?
Yes, I40.9 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is I40.9 in?
I40.9 is in Chapter 9: Diseases of the Circulatory System (codes I00-I99).
What codes cannot be used with I40.9?
I40.9 has Excludes1 notes indicating codes that cannot be used together with it, including: acute rheumatic myocarditis (I01.2).
What SNOMED CT codes does I40.9 map to?
I40.9 maps to 3 SNOMED CT concepts: 46701001, 37925008, 18484008. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for I40.9?
I40.9 is linked to 1 UMLS Concept Unique Identifier: C0155686. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.