B33
Non-billableOther viral diseases, not elsewhere classified
Other viral diseases, not elsewhere classified
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Includes
Conditions included under this code
- diseases generally recognized as communicable or transmissible
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
- certain localized infections - see body system-related chapters
Excludes 2
Conditions not included here, but the patient may have both
Use Additional Code
Additional codes that should follow this code
Child Codes (6)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(1)
Frequently Asked Questions
What is the ICD-10 code for other viral diseases, not elsewhere classified?
The ICD-10-CM code for other viral diseases, not elsewhere classified is B33. The full clinical description is "Other viral diseases, not elsewhere classified". B33 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code B33 mean?
ICD-10-CM code B33 represents “Other viral diseases, not elsewhere classified”. It is classified under Chapter 1: Certain Infectious and Parasitic Diseases and is a non-billable header code. Use a more specific child code for billing purposes.
Is B33 a billable code?
No, B33 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 6 child codes under B33.
What chapter is B33 in?
B33 is in Chapter 1: Certain Infectious and Parasitic Diseases (codes A00-B99).
What codes cannot be used with B33?
B33 has Excludes1 notes indicating codes that cannot be used together with it, including: certain localized infections - see body system-related chapters.
What are the subcategories under B33?
B33 has 6 child codes, including: B33.0 (Epidemic myalgia), B33.1 (Ross River disease), B33.2 (Viral carditis), B33.3 (Retrovirus infections, not elsewhere classified), and 2 more.
Are additional codes required with B33?
Yes, when using B33, also report: resistance to antimicrobial drugs (Z16.-).
What are the UMLS CUIs for B33?
B33 is linked to 1 UMLS Concept Unique Identifier: C0494101. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does B33 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like other viral diseases, not elsewhere classified 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 B33?
B33 maps to the ICD-11 code: 1E1Z (Unspecified viral disease).
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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.