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.
Status
Non-billable / Header
Block
B25-B34
Child Codes
6
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
- code to identify resistance to antimicrobial drugs (Z16.-)
Child Codes (6)
Also Known As / Clinical Terms
Frequently Asked Questions
What is ICD-10 code B33?
ICD-10-CM code B33 represents "Other viral diseases, not elsewhere classified". It 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 you should also code: code to identify 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.
Automate ICD-10 Coding With AI
Send clinical text to the AutoICD API and get back structured ICD-10 codes with confidence scores. Integrates into any EHR or billing system in minutes.
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.