ICD-10-CM 2027
ICD-10 code for hepatitis viral carrier of
From the official ICD-10-CM alphabetic index entry “Carrier (suspected) of › hepatitis (viral)”. Page updated September 29, 2026.
About coding hepatitis viral carrier of
The ICD-10-CM code for hepatitis viral carrier of is B18.9 (Chronic viral hepatitis, unspecified). The official index lists 5 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on B18.9.
Within B18, choose B18.9 (unspecified) only when documentation doesn't support a more specific option: B with delta-agent (B18.0), B without delta-agent (B18.1), C (B18.2) and other chronic viral hepatitis (B18.8).
Use an additional code, if applicable, for ascites (R18.8).
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
More specific hepatitis viral carrier of codes (official index)
- Australia-antigen (HAA) B18.8 — Other chronic viral hepatitis
- B surface antigen (HBsAg) B18.1 — Chronic viral hepatitis B without delta-agent
- with acute delta- (super)infection B17.0 — Acute delta-(super) infection of hepatitis B carrier
- C B18.2 — Chronic viral hepatitis C
- specified NEC B18.8 — Other chronic viral hepatitis
Common questions about hepatitis viral carrier of ICD-10 codes
What is the ICD-10 code for hepatitis viral carrier of?
- B18.9 — Chronic viral hepatitis, unspecified. More specific codes apply when the documentation supports them: B18.8, B18.1, B17.0, B18.2 and others below.
What is the ICD-10 code for australia-antigen hepatitis viral carrier of?
- B18.8 — Other chronic viral hepatitis.
What is the ICD-10 code for b surface antigen hepatitis viral carrier of?
- B18.1 — Chronic viral hepatitis B without delta-agent.
What is the ICD-10 code for c hepatitis viral carrier of?
- B18.2 — Chronic viral hepatitis C.
Is B18.9 billable?
- Yes. B18.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can B18.9 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict B18.9 as a principal diagnosis.
Is B18.9 a CC or MCC?
- B18.9 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.