ICD-10-CM 2027
ICD-10 code for Sin nombre virus disease
Hantavirus (cardio)-pulmonary syndrome [HPS] [HCPS]
From the official ICD-10-CM alphabetic index entry “Disease, diseased › sin nombre virus”. Page updated September 29, 2026.
About coding Sin nombre virus disease
The ICD-10-CM code for Sin nombre virus disease is B33.4 (Hantavirus (cardio)-pulmonary syndrome [HPS] [HCPS]).
Within B33 (other viral diseases, not elsewhere classified), B33.4 is specifically for Hantavirus (cardio)-pulmonary syndrome [HPS] [HCPS]. Related codes cover epidemic myalgia (B33.0), Ross River disease (B33.1), viral carditis (B33.2), retrovirus infections, not elsewhere classified (B33.3) and other specified viral diseases (B33.8).
Don't report B33.4 together with the conditions in its Excludes1 note: hantavirus disease with renal manifestations (A98.5) and hemorrhagic fever with renal manifestations (A98.5).
Use an additional code to identify any associated acute kidney failure (N17.9).
Don't confuse with (Excludes1 for B33.4)
Common questions about Sin nombre virus disease ICD-10 codes
What is the ICD-10 code for Sin nombre virus disease?
- B33.4 — Hantavirus (cardio)-pulmonary syndrome [HPS] [HCPS].
Is B33.4 billable?
- Yes. B33.4 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can B33.4 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict B33.4 as a principal diagnosis.
Is B33.4 a CC or MCC?
- B33.4 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.