2026 ICD-10-CM Diagnosis Code B19.0Unspecified viral hepatitis with hepatic coma

ICD-10-CM Codes›A00–B99›B15-B19›B19

ICD-10-CM B19.0
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

B19.0 is a billable ICD-10-CM diagnosis code for unspecified viral hepatitis with hepatic coma. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 441 through 443. Coders also document this condition as hepatic coma due to viral hepatitis. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Coma; stupor; and brain damage, Hepatitis, and Viral infection.

Code Identity

ICD-10-CM Code
B19.0
Billable Status
Yes — Valid for Submission
Code Describes
Unspecified viral hepatitis with hepatic coma
Short Description
Unspecified viral hepatitis with hepatic coma
Same as the full description in the CMS dataset.
Parent Code
B19
Unspecified viral hepatitis

Code Classification

ChapterA00–B99Certain infectious and parasitic diseases
SectionB15-B19Viral hepatitis
CategoryB19Unspecified viral hepatitis
This CodeB19.0Unspecified viral hepatitis with hepatic coma

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Hepatic coma due to viral hepatitis
  • Hepatic coma due to viral hepatitis D

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Hepatitis
      • viral, virus
        • with hepatic coma

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR NVS013
Coma; stupor; and brain damage
Default principal diagnosis: inpatient No · outpatient No
CCSR INF007
Hepatitis
Default principal diagnosis: inpatient Yes · outpatient Yes
CCSR INF008
Viral infection
Default principal diagnosis: inpatient No · outpatient No

Patient EducationClinical

Coma

A coma is a deep state of unconsciousness. An individual in a coma is alive but unable to move or respond to his or her environment. Coma may occur as a complication of an underlying illness, or as a result of injuries, such as brain injury.

Read the full article at MedlinePlus

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Convert B19.0 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
070.6 Viral hepat NOS w coma
Exact Match The mapping is direct, with no qualifiers.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About B19.0Overview

Is B19.0 (Unspecified viral hepatitis) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report unspecified viral hepatitis with hepatic coma on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does B19.0 group to?

When unspecified viral hepatitis with hepatic coma is the principal diagnosis on an inpatient stay, it groups to MS-DRG 441, 442, 443, with relative weights from 0.6997 to 1.7947 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of B19.0?

Under the General Equivalence Mappings, unspecified viral hepatitis with hepatic coma converts to ICD-9-CM 070.6 (viral hepat NOS w coma). The mapping is a direct match.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.