Is B33.4 a billable ICD-10-CM code?

Yes. B33.4 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does B33.4 sit in the tabular list?

Certain infectious and parasitic diseases (A00-B99), in the block Other viral diseases (B25-B34).

What cannot be coded together with B33.4?

B33.4 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

B33.4

B33.4 — Hantavirus (cardio)-pulmonary syndrome [HPS] [HCPS]

Billable / specific codeICD-10-CM

B33.4 is a billable, specific ICD-10-CM code for hantavirus (cardio)-pulmonary syndrome [hps] [hcps]. It is valid for submission on a claim.

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

hantavirus disease with renal manifestations (A98.5)
hemorrhagic fever with renal manifestations (A98.5)

Use additional code

Add a secondary code to capture the detail described below.

code to identify any associated acute kidney failure (N17.9)

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Hantavirus disease with pulmonary manifestations
Sin nombre virus disease

Other codes that can never be billed with B33.4

These codes carry an Excludes1 note pointing at B33.4. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading B33.4 alone.

A98.5Hemorrhagic fever with renal syndrome

Risk adjustment

B33.4 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

How B33.4 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to B33.4.

Sin Nombre virus disease-pulmonary syndrome(Hantavirus) (cardio)
Disease, diseased›Hantavirus, with pulmonary manifestations
Disease, diseased›sin nombre virus
Hantavirus disease›with pulmonary manifestations(Andes) (Bayou) (Bermejo) (Black Creek Canal) (Choclo) (Juquitiba) (Laguna negra) (Lechiguanas) (New York) (Oran) (Sin nombre)
Syndrome›hantavirus(cardio)-pulmonary (HPS) (HCPS)
Disease, diseased›viral, virus›Sin nombre(Hantavirus) (cardio)-pulmonary syndrome)
Disease, diseased›viral, virus›Hanta›with pulmonary manifestations(Andes) (Bayou) (Bermejo) (Black Creek Canal) (Choclo) (Juquitiba) (Laguna negra) (Lechiguanas) (New York) (Oran) (Sin nombre)

Related codes at this level

Codes that share B33. If B33.4 is not quite right, the correct code is usually one of these.

Questions about B33.4

Is B33.4 a billable ICD-10-CM code?: Yes. B33.4 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does B33.4 sit in the tabular list?: Certain infectious and parasitic diseases (A00-B99), in the block Other viral diseases (B25-B34).
What cannot be coded together with B33.4?: B33.4 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.