2020 ICD-10-CM Diagnosis Code B18.1

Chronic viral hepatitis B without delta-agent

    2016 2017 2018 2019 2020 Billable/Specific Code
  • B18.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2020 edition of ICD-10-CM B18.1 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of B18.1 - other international versions of ICD-10 B18.1 may differ.
Applicable To
  • Carrier of viral hepatitis B
  • Chronic (viral) hepatitis B
The following code(s) above B18.1 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to B18.1:
  • A00-B99
    2020 ICD-10-CM Range A00-B99

    Certain infectious and parasitic diseases

    Includes
    • diseases generally recognized as communicable or transmissible
    Type 1 Excludes
    • certain localized infections - see body system-related chapters
    Type 2 Excludes
    • carrier or suspected carrier of infectious disease (Z22.-)
    • infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
    • infectious and parasitic diseases specific to the perinatal period (P35-P39)
    • influenza and other acute respiratory infections (J00-J22)
    Use Additional
    • code to identify resistance to antimicrobial drugs (Z16.-)
    Certain infectious and parasitic diseases
  • B15-B19
    2020 ICD-10-CM Range B15-B19

    Viral hepatitis

    Type 1 Excludes
    • sequelae of viral hepatitis (B94.2)
    Type 2 Excludes
    • cytomegaloviral hepatitis (B25.1)
    • herpesviral [herpes simplex] hepatitis (B00.81)
    Viral hepatitis
  • B18
    ICD-10-CM Diagnosis Code B18

    Chronic viral hepatitis

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Includes
    • Carrier of viral hepatitis
    Chronic viral hepatitis
Approximate Synonyms
  • Chronic hepatitis b with hepatic coma
  • Chronic type b viral hepatitis
  • Hepatitis b, chronic
  • Hepatitis b, chronic, with hepatic coma
Clinical Information
  • Inflammation of the liver in humans caused by hepatitis b virus lasting six months or more. It is primarily transmitted by parenteral exposure, such as transfusion of contaminated blood or blood products, but can also be transmitted via sexual or intimate personal contact.
ICD-10-CM B18.1 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 441 Disorders of liver except malignancy, cirrhosis or alcoholic hepatitis with mcc
  • 442 Disorders of liver except malignancy, cirrhosis or alcoholic hepatitis with cc
  • 443 Disorders of liver except malignancy, cirrhosis or alcoholic hepatitis without cc/mcc
  • 791 Prematurity with major problems
  • 793 Full term neonate with major problems

Convert B18.1 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
Code annotations containing back-references to B18.1:
  • Use Additional: C22
    ICD-10-CM Diagnosis Code C22

    Malignant neoplasm of liver and intrahepatic bile ducts

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • malignant neoplasm of biliary tract NOS (C24.9)
    • secondary malignant neoplasm of liver and intrahepatic bile duct (C78.7)
    Use Additional

Diagnosis Index entries containing back-references to B18.1:
  • Carrier (suspected)
    • hepatitis (viral) B18.9
      ICD-10-CM Diagnosis Code B18.9

      Chronic viral hepatitis, unspecified

        2016 2017 2018 2019 2020 Billable/Specific Code
      Applicable To
      • Carrier of unspecified viral hepatitis
    • HB B18.1 (c)(s)
  • Hepatitis K75.9
    ICD-10-CM Diagnosis Code K75.9

    Inflammatory liver disease, unspecified

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Hepatitis NOS
    Type 1 Excludes
    • acute or subacute hepatitis (K72.0-)
    • chronic hepatitis NEC (K73.-)
    • viral hepatitis (B15-B19)
    • B B19.10
      ICD-10-CM Diagnosis Code B19.10

      Unspecified viral hepatitis B without hepatic coma

        2016 2017 2018 2019 2020 Billable/Specific Code
      Applicable To
      • Unspecified viral hepatitis B NOS
    • viral, virus B19.9
      ICD-10-CM Diagnosis Code B19.9

      Unspecified viral hepatitis without hepatic coma

        2016 2017 2018 2019 2020 Billable/Specific Code
      Applicable To
      • Viral hepatitis NOS
      • chronic B18.9
        ICD-10-CM Diagnosis Code B18.9

        Chronic viral hepatitis, unspecified

          2016 2017 2018 2019 2020 Billable/Specific Code
        Applicable To
        • Carrier of unspecified viral hepatitis
      • type
        • B B19.10
          ICD-10-CM Diagnosis Code B19.10

          Unspecified viral hepatitis B without hepatic coma

            2016 2017 2018 2019 2020 Billable/Specific Code
          Applicable To
          • Unspecified viral hepatitis B NOS
  • Serum

ICD-10-CM Codes Adjacent To B18.1
B17 Other acute viral hepatitis
B17.0 Acute delta-(super) infection of hepatitis B carrier
B17.1 Acute hepatitis C
B17.10 …… without hepatic coma
B17.11 …… with hepatic coma
B17.2 Acute hepatitis E
B17.8 Other specified acute viral hepatitis
B17.9 Acute viral hepatitis, unspecified
B18 Chronic viral hepatitis
B18.0 Chronic viral hepatitis B with delta-agent
B18.1 Chronic viral hepatitis B without delta-agent
B18.2 Chronic viral hepatitis C
B18.8 Other chronic viral hepatitis
B18.9 Chronic viral hepatitis, unspecified
B19 Unspecified viral hepatitis
B19.0 Unspecified viral hepatitis with hepatic coma
B19.1 Unspecified viral hepatitis B
B19.10 …… without hepatic coma
B19.11 …… with hepatic coma
B19.2 Unspecified viral hepatitis C
B19.20 …… without hepatic coma

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.