2026 ICD-10-CM Diagnosis Code B19.9Unspecified viral hepatitis without hepatic coma

ICD-10-CM Codes›A00–B99›B15-B19›B19

ICD-10-CM B19.9
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

B19.9 is a billable ICD-10-CM diagnosis code for unspecified viral hepatitis without 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. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Hepatitis and Viral infection.

Code Identity

ICD-10-CM Code
B19.9
Billable Status
Yes — Valid for Submission
Code Describes
Unspecified viral hepatitis without hepatic coma
Short Description
Unspecified viral hepatitis without 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 CodeB19.9Unspecified viral hepatitis without hepatic coma

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Anicteric viral hepatitis
  • Bleeding esophageal varices
  • Bleeding esophageal varices due to viral hepatitis
  • Esophageal varices associated with another disorder
  • Fulminant hepatitis
  • Hepatitis caused by sexually transmissible virus
  • Hepatitis due to infection
  • Infection after infusion
  • Infection after transfusion
  • Liver disorder in pregnancy
  • Posttransfusion viral hepatitis
  • Relapsing viral hepatitis
  • Subacute hepatic failure
  • Subacute hepatic failure caused by hepatitis virus
  • Viral disease in mother complicating childbirth
  • Viral hepatitis
  • Viral hepatitis complicating pregnancy, childbirth and the puerperium
  • Viral hepatitis D
  • Viral hepatitis in mother complicating childbirth
  • Viral hepatitis in mother complicating pregnancy
  • Viral hepatitis without hepatic coma

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Viral hepatitis NOS

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.

    • Arthropathy
      • in (due to)
        • viral hepatitis (postinfectious) NEC
    • Arthropathy
      • postinfectious NEC
        • in (due to)
          • viral hepatitis NEC
    • Hepatitis
      • viral, virus

Clinical ClassificationClinical

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

CCSR INF007
Hepatitis
Default principal diagnosis: inpatient Yes · outpatient Yes
CCSR INF008
Viral infection
Default principal diagnosis: inpatient No · outpatient No

Patient EducationClinical

Hepatitis

Hepatitis is inflammation of the liver. Inflammation is swelling that happens when tissues of the body are injured or infected. It can damage your liver. This swelling and damage can affect how well your liver functions.

The full article covers:

  • What is hepatitis?
  • What causes hepatitis?
  • How is viral hepatitis spread?
  • Who is at risk for hepatitis?
  • What are the symptoms of hepatitis?
  • What other problems can hepatitis cause?
  • How is hepatitis diagnosed?
  • What are the treatments for hepatitis?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert B19.9 to ICD-9-CMHistory

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

ICD-9-CM
070.9 Viral hepat NOS w/o coma
Approximate The match is approximate rather than exact.

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 B19.9Overview

Is B19.9 (Unspecified viral hepatitis) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report unspecified viral hepatitis without hepatic coma on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does B19.9 group to?

When unspecified viral hepatitis without 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 B19.9?

Under the General Equivalence Mappings, unspecified viral hepatitis without hepatic coma converts to ICD-9-CM 070.9 (viral hepat NOS w/o coma). The mapping is approximate, so confirm the match fits the documentation.

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.