I33.9
BillableAcute and subacute endocarditis, unspecified
Acute and subacute endocarditis, unspecified
Coding Notes
Inclusion Terms
Alternative clinical terms for this condition
- Acute endocarditis NOS
- Acute myoendocarditis NOS
- Acute periendocarditis NOS
- Subacute endocarditis NOS
- Subacute myoendocarditis NOS
- Subacute periendocarditis NOS
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Excludes 2
Conditions not included here, but the patient may have both
- •certain conditions originating in the perinatal periodP04-P96
- •certain infectious and parasitic diseasesA00-B99
- •complications of pregnancy, childbirth and the puerperiumO9A)O00
- •congenital malformations, deformations, and chromosomal abnormalitiesQ00-Q99
- •endocrine, nutritional and metabolic diseasesE00-E88
- •injury, poisoning and certain other consequences of external causesS00-T88
- •neoplasmsC00-D49
- •symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classifiedR00-R94
- •systemic connective tissue disordersM30-M36
- •transient cerebral ischemic attacks and related syndromesG45
Related Codes(1)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(78)
SNOMED CT
- Acute myoendocarditis30328003
- Acute myocarditis46701001
- Subacute endopericarditis48228003
- Subacute periendocarditis48228003
- Acute endopericarditis53874003
- Acute periendocarditis53874003
- Subacute endocarditis66893008
- Subacute myoendocarditis69589006
- Subacute pericarditis86504008
- Acute endocarditis91357005
- Abscess of cardiac septum405548009
- Abscess at site of ventricular septal defect459161004
- Abscess at site of interatrial communication459177003
- Heart disease co-occurrent with human immunodeficiency virus infection713298006
- Acute endocarditis co-occurrent with human immunodeficiency virus infection713511002
- Embolism due to non-infective heart valve vegetations1204121003
- Embolism from non-infective heart valve vegetations1204121003
- Acute nonbacterial endocarditis31701000119107
UMLS
- Acute EndocarditisC0375268
- Acute endocarditisC0375268
- Acute endocarditis (disorder)C0375268
- Acute endocarditis NOSC0375268
- Acute endocarditis, unspecifiedC0375268
- acute endocarditisC0375268
- Acute and Subacute Endocarditis, UnspecifiedC0155683
- Acute and subacute endocarditisC0155683
- Acute and subacute endocarditis, unspecifiedC0155683
- Acute endopericarditisC0264874
- Acute periendocarditisC0264874
- Acute periendocarditis (disorder)C0264874
- Acute periendocarditis NOSC0264874
- Acute myoendocarditisC0264872
- Acute myoendocarditis (disorder)C0264872
- Acute myoendocarditis NOSC0264872
- Subacute endocarditisC0264863
- Subacute endocarditis (disorder)C0264863
- Subacute endocarditis NOSC0264863
- subacute endocarditisC0264863
- subacute infective endocarditisC0264863
- Subacute endopericarditisC0264875
- Subacute periendocarditisC0264875
- Subacute periendocarditis (disorder)C0264875
- Subacute periendocarditis NOSC0264875
- Subacute myoendocarditisC0264873
- Subacute myoendocarditis (disorder)C0264873
- Subacute myoendocarditis NOSC0264873
Clinical Terms
- Subacute endocarditis
- Embolism due to non-infective heart valve vegetations
- Acute endocarditis
- Acute endocarditis (disorder)
- Subacute pericarditis
- Abscess at site of interatrial communication
- Acute periendocarditis NOS
- subacute infective endocarditis
- Abscess of cardiac septum
- Subacute periendocarditis (disorder)
- Subacute myoendocarditis NOS
- Heart disease co-occurrent with human immunodeficiency virus infection
- Acute periendocarditis (disorder)
- Abscess at site of ventricular septal defect
- Subacute myoendocarditis (disorder)
- Acute endocarditis NOS
- Embolism from non-infective heart valve vegetations
- Acute myoendocarditis
- Subacute endocarditis (disorder)
- Acute endopericarditis
- Subacute periendocarditis
- Acute myoendocarditis NOS
- Subacute periendocarditis NOS
- Acute endocarditis co-occurrent with human immunodeficiency virus infection
- Subacute endocarditis NOS
- Acute nonbacterial endocarditis
- Subacute myoendocarditis
- Acute myoendocarditis (disorder)
- Subacute endopericarditis
- Acute periendocarditis
- Acute endocarditis, unspecified
- Acute myocarditis
Frequently Asked Questions
What is the ICD-10 code for acute and subacute endocarditis, unspecified?
The ICD-10-CM code for acute and subacute endocarditis, unspecified is I33.9. The full clinical description is "Acute and subacute endocarditis, unspecified". I33.9 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code I33.9 mean?
ICD-10-CM code I33.9 represents “Acute and subacute endocarditis, unspecified”. It is classified under Chapter 9: Diseases of the Circulatory System and is a billable/specific code that can be used on a claim.
Is I33.9 a billable code?
Yes, I33.9 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is I33.9 in?
I33.9 is in Chapter 9: Diseases of the Circulatory System (codes I00-I99).
What codes cannot be used with I33.9?
I33.9 has Excludes1 notes indicating codes that cannot be used together with it, including: acute rheumatic endocarditis (I01.1); endocarditis NOS (I38).
What SNOMED CT codes does I33.9 map to?
I33.9 maps to 15 SNOMED CT concepts: 459177003, 459161004, 405548009, 91357005, 713511002, and 10 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for I33.9?
I33.9 is linked to 7 UMLS Concept Unique Identifiers: C0375268, C0155683, C0264874, C0264872, C0264863, and 2 more. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does I33.9 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like acute and subacute endocarditis, unspecified affect a person's functioning: body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of I33.9?
I33.9 maps to the ICD-11 code: BB4Z (Acute or subacute endocarditis, unspecified).
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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.