B33.8 Other specified viral diseases
The ICD-10-CM code for Other specified viral diseases is B33.8 (FY2026). It is a billable, claim-ready diagnosis code.
Classification
- Section
- B25-B34: Other viral diseases (B25-B34)
- Category B33
- 12 codes (10 billable)
- FY2026 Status
- Stable since FY2024
Also Known As
ICD-10-CM Alphabetic Index entries that lead to B33.8:
- Aujeszky's disease
- Tahyna fever
- Lymphocytosis (symptomatic) › infectious (acute)
- Coxsackie (virus) (infection) › specific disease NEC
- Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) › Tahyna
- Disease, diseased › viral, virus › Tahyna
- Infection, infected, infective (opportunistic) › virus, viral NOS › specified type NEC
- Hepatitis › viral, virus › coxsackie
U.S. Hospital Utilization
- An estimated 2,375 U.S. inpatient stays in 2023 included B33.8 among the documented diagnoses.
- 475 stays listed it as the principal diagnosis.
Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.
Official Coding Guidelines
HIV Infections (TOC entry)a. Human Immunodeficiency Virus (HIV) Infections .............................................................. 19
Infectious agents causing diseases in other chapters (TOC)b. Infectious agents as the cause of diseases classified to other chapters ................................. 22
Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026