ICD-10-CM Code I33.9
Acute and subacute endocarditis, unspecified
Billable Code
Billable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.I33.9 is a billable ICD code used to specify a diagnosis of acute and subacute endocarditis, unspecified. A 'billable code' is detailed enough to be used to specify a medical diagnosis.
The ICD code I33 is used to code Infective endocarditis
Infective endocarditis is a form of endocarditis. It is an inflammation of the inner tissues of the heart, the endocardium (such as its valves). It is caused by infectious agents, or pathogens, which are usually bacterial but other organisms can also be responsible. Before the age of modern antibiotics it was almost universally fatal.
| Specialty: | Cardiology, Infectious Disease |
| MeSH Codes: | , |
| ICD 9 Codes: | 421.0, 421.1 |
A mitral valve vegetation caused by bacterial endocarditis.
Coding Notes for I33.9 Info for medical coders on how to properly use this ICD-10 code
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Inclusion Terms:
Inclusion Terms
Inclusion Terms are a list of concepts for which a specific code is used. The list of Inclusion Terms is useful for determining the correct code in some cases, but the list is not necessarily exhaustive. - Acute endocarditis NOS
- Acute myoendocarditis NOS
- Acute periendocarditis NOS
- Subacute endocarditis NOS
- Subacute myoendocarditis NOS
- Subacute periendocarditis NOS
MS-DRG Mapping
- DRG Group #288-290 - Acute and subacute endocarditis with MCC.
- DRG Group #288-290 - Acute and subacute endocarditis with CC.
- DRG Group #288-290 - Acute and subacute endocarditis without CC or MCC.
- DRG Group #793 - Full term neonate with major problems.
- DRG Group #974-976 - Hiv with major related condition with MCC.
- DRG Group #974-976 - Hiv with major related condition with CC.
- DRG Group #974-976 - Hiv with major related condition without CC or MCC.
ICD-10-CM Alphabetical Index References for 'I33.9 - Acute and subacute endocarditis, unspecified'
The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code I33.9. Click on any term below to browse the alphabetical index.
Equivalent ICD-9 Code GENERAL EQUIVALENCE MAPPINGS (GEM)
This is the official exact match mapping between ICD9 and ICD10, as provided by the General Equivalency mapping crosswalk. This means that in all cases where the ICD9 code 421.9 was previously used, I33.9 is the appropriate modern ICD10 code.
Parent Code: I33 - Acute and subacute endocarditis