All ICD10 Codes

B33

Non-Billable
ChapterA00–B99
Rankcategory
Official Description

Other viral diseases, not elsewhere classified

Use a more specific code (5 billable, 1 non-billable)
B33.0Epidemic myalgiaB33.1Ross River diseaseB33.2Viral carditishas subcodesB33.3Retrovirus infections, not elsewhere classifiedB33.4Hantavirus (cardio)-pulmonary syndrome [HPS] [HCPS]B33.8Other specified viral diseases
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 1: Certain Infectious and Parasitic Diseases (A00-B99).

CH1 Parent Instructions

Includes
  • diseases generally recognized as communicable or transmissible
Excludes1(Not coded here. Use a different code.)
  • certain localized infections - see body system-related chapters
Excludes2(Not included here. Code separately if applicable.)
  • carrier or suspected carrier of infectious disease (Z22.-)
  • infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
  • infectious and parasitic diseases specific to the perinatal period (P35-P39)
  • influenza and other acute respiratory infections (J00-J22)
Use Additional Code
  • code to identify resistance to antimicrobial drugs (Z16.-)

Clinical Hierarchy

BillableHas subcodes
CH1Certain infectious and parasitic diseases (A00-B99)
B25-B34Other viral diseases (B25-B34)
B33Other viral diseases, not elsewhere classifiedNot billable
B33.0Epidemic myalgiaBillable
B33.1Ross River diseaseBillable
B33.2Viral carditisSubcodes
B33.3Retrovirus infections, not elsewhere classifiedBillable
B33.4Hantavirus (cardio)-pulmonary syndrome [HPS] [HCPS]Billable
B33.8Other specified viral diseasesBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to B33:

chapterCH1
Certain infectious and parasitic diseases (A00-B99)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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