Billable / Specific Code
ICD-10-CM B33.4 is the diagnosis code for Hantavirus (cardio)-pulmonary syndrome [HPS] [HCPS]. This code falls under the section "Other viral diseases" within Chapter 1 — Certain infectious and parasitic diseases (A00-B99). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions should never be coded at the same time as B33.4. They are mutually exclusive:
Understanding where B33.4 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, B33.4 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
B33.4 is the ICD-10-CM diagnosis code for "Hantavirus (cardio)-pulmonary syndrome [HPS] [HCPS]". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of B33.4 is B33 ("Other viral diseases, not elsewhere classified"). B33.4 provides a more specific classification within this category.
B33.4 is located in Section B25-B34 — "Other viral diseases" within Chapter 1 of the ICD-10-CM Tabular List.
Use B33.4 when the patients documented diagnosis matches "Hantavirus (cardio)-pulmonary syndrome [HPS] [HCPS]" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Hantavirus (cardio)-pulmonary syndrome [HPS] [HCPS] is B33.4.
Yes, B33.4 can be used as a primary diagnosis code since it is billable and specific.
B33.4 is in Chapter 1 of the ICD-10-CM Tabular List.
Type 1 Excludes for B33.4 include: hantavirus disease with renal manifestations (A98.5); hemorrhagic fever with renal manifestations (A98.5).
Yes, B33.4 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.