B33.1 – Ross River disease
ICD-10-CM 2027 diagnosis code · Other viral diseases
ICD-10-CM code
B33.1
- Code
B33.1(claims format:B331)- Description
- Ross River disease
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 1. Certain infectious and parasitic diseases (A00-B99)
- Block
- B25-B34 Other viral diseases
- Parent codes
- B33
Notes for B33.1
Applicable to:
- Epidemic polyarthritis and exanthema
- Ross River fever
Index terms for B33.1
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in B33
Frequently asked questions
What is ICD-10 code B33.1?
B33.1 is the ICD-10-CM code for ross River disease, in the block B25-B34 (Other viral diseases).
Is B33.1 a billable code?
Yes. B33.1 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does B33.1 belong to?
It belongs to category B33 – Other viral diseases, not elsewhere classified.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.