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    OpenPayerBilling CodesViral hepatitisICD-10-CM b19-unspecified-viral-hepatitis
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    ICD-10-CM Code For Unspecified Viral Hepatitis: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group B19 includes diagnoses for viral hepatitis without specification of the causal viral agent, covering acute or chronic hepatic inflammation when a specific virus is not documented. These ICD-10-CM diagnosis codes are used to document clinical scenarios where the etiology of hepatitis is unknown or unspecified, capturing disease severity, organ involvement, or clinical complexity relevant to hepatic dysfunction. Accurate coding within the ICD-10-CM B19 group supports proper claim adjudication by payers, complete clinical documentation, and appropriate reimbursement for services related to management of unspecified viral hepatitis.

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    ICD-10-CM B19: Unspecified Viral Hepatitis Overview

    The ICD-10-CM B19 group represents unspecified viral hepatitis diagnoses, conditions affecting the liver caused by viral infection when the specific viral agent is not identified or documented. These codes target hepatic inflammation and related systemic effects and are used across inpatient and outpatient settings. Accurate coding matters for reimbursement because it ensures clinical severity and resource use are reflected in claims and supports correct payment adjudication.

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    When to Use

    Use a code from this group when a patient has clinical or laboratory evidence of viral hepatitis but the medical record does not specify the causal viral agent. These codes apply in both acute and chronic presentations when documentation explicitly indicates the hepatitis is viral yet unspecified.

    ICD-10-CM Codes

    6 rows

    ICD-10-CM CodeDescription
    B19.0Unspecified viral hepatitis with hepatic coma
    B19.10Unspecified viral hepatitis B without hepatic coma
    B19.11Unspecified viral hepatitis B with hepatic coma
    B19.20Unspecified viral hepatitis C without hepatic coma
    B19.21Unspecified viral hepatitis C with hepatic coma
    B19.9Unspecified viral hepatitis without hepatic coma

    DRG Codes

    5 rows

    DRG CodeDescription
    441Disorders of Liver Except Malignancy, Cirrhosis or Alcoholic Hepatitis with MCC
    442Disorders of Liver Except Malignancy, Cirrhosis or Alcoholic Hepatitis with CC
    443Disorders of Liver Except Malignancy, Cirrhosis or Alcoholic Hepatitis without CC/MCC
    791Prematurity with Major Problems
    793Full Term Neonate with Major Problems

    Typical Clinical Scenarios

    • An adult presents to the emergency department with sudden onset fever, jaundice, malaise, dark urine, and right upper quadrant abdominal pain after recent travel and no prior history of chronic liver disease. Laboratory testing shows markedly elevated aminotransferases and positive hepatitis A and B serologic markers are negative, but viral PCR identifies hepatitis C RNA consistent with acute viral hepatitis; the clinician documents an unspecified viral hepatitis while awaiting subtype confirmation or when serology is inconclusive. Typical codes: B19.10, B19.11
    • A middle-aged patient with no prior liver disease is admitted from clinic for progressive fatigue, anorexia, mild jaundice, and abnormal liver enzymes of several weeks’ duration after exposure to a household contact with viral hepatitis; serologic testing is inconclusive or pending, and the treating team documents viral hepatitis without specification of the causative agent. This subacute presentation without established chronicity prompts assignment of an unspecified viral hepatitis code until a definitive viral etiology is identified. Typical codes: B19.9, B19.20
    • A hospitalized patient with known chronic liver disease develops acute decompensation with ascites and hepatic encephalopathy after a superimposed viral infection that cannot be identified by available testing; the clinician documents unspecified viral hepatitis as a precipitant of the hepatic decompensation when a specific viral type is not determined. This scenario reflects an acute exacerbation or complication of underlying liver disease attributed to viral hepatitis of unspecified type. Typical codes: B19.0, B19.21

    Related Codes

    B15-ACUTE-HEPATITIS-A

    ICD-10-CM Code For Acute Hepatitis A: Group Overview

    B16-ACUTE-HEPATITIS-B

    ICD-10-CM Code For Acute Hepatitis B: Group Overview

    B17-OTHER-ACUTE-VIRAL-HEPATITIS

    ICD-10-CM Code For Other Acute Viral Hepatitis: Group Overview

    B18-CHRONIC-VIRAL-HEPATITIS

    ICD-10-CM Code For Chronic Viral Hepatitis: Group Overview

    Frequently Asked Questions

    References

    1. 1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
    2. 2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
    3. 3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.
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