2023 ICD-10-CM Diagnosis Code B10.09

Other human herpesvirus encephalitis

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
  • B10.09 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2023 edition of ICD-10-CM B10.09 became effective on October 1, 2022.
  • This is the American ICD-10-CM version of B10.09 - other international versions of ICD-10 B10.09 may differ.
Applicable To
  • Human herpesvirus 7 encephalitis
The following code(s) above B10.09 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 B10.09:
  • A00-B99
    2023 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
  • B10
    ICD-10-CM Diagnosis Code B10

    Other human herpesviruses

      2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
    Type 2 Excludes
    Other human herpesviruses
  • B10.0
    ICD-10-CM Diagnosis Code B10.0

    Other human herpesvirus encephalitis

      2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
    Type 2 Excludes
    • herpes encephalitis NOS (B00.4)
    • herpes simplex encephalitis (B00.4)
    • human herpesvirus encephalitis (B00.4)
    • simian B herpes virus encephalitis (B00.4)
    Other human herpesvirus encephalitis
Approximate Synonyms
  • Human herpesvirus 7 encephalitis
ICD-10-CM B10.09 is grouped within Diagnostic Related Group(s) (MS-DRG v40.0):
  • 023 Craniotomy with major device implant or acute complex cns principal diagnosis with mcc or chemotherapy implant or epilepsy with neurostimulator
  • 024 Craniotomy with major device implant or acute complex cns principal diagnosis without mcc
  • 097 Non-bacterial infection of nervous system except viral meningitis with mcc
  • 098 Non-bacterial infection of nervous system except viral meningitis with cc
  • 099 Non-bacterial infection of nervous system except viral meningitis without cc/mcc
  • 791 Prematurity with major problems
  • 793 Full term neonate with major problems
  • 974 Hiv with major related condition with mcc
  • 975 Hiv with major related condition with cc
  • 976 Hiv with major related condition without cc/mcc

Convert B10.09 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
  • 2021 (effective 10/1/2020): No change
  • 2022 (effective 10/1/2021): No change
  • 2023 (effective 10/1/2022): No change
Code annotations containing back-references to B10.09:
  • Type 1 Excludes: B00.4
    ICD-10-CM Diagnosis Code B00.4

    Herpesviral encephalitis

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
    Applicable To
    • Herpesviral meningoencephalitis
    • Simian B disease
    Type 1 Excludes
    • herpesviral encephalitis due to herpesvirus 6 and 7 (B10.01, B10.09)
    • non-simplex herpesviral encephalitis (B10.0-)

Diagnosis Index entries containing back-references to B10.09:
  • Encephalitis (chronic) (hemorrhagic) (idiopathic) (nonepidemic) (spurious) (subacute) G04.90
    ICD-10-CM Diagnosis Code G04.90

    Encephalitis and encephalomyelitis, unspecified

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
    Applicable To
    • Ventriculitis (cerebral) NOS
    • herpesviral B00.4
      ICD-10-CM Diagnosis Code B00.4

      Herpesviral encephalitis

        2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
      Applicable To
      • Herpesviral meningoencephalitis
      • Simian B disease
      Type 1 Excludes
      • herpesviral encephalitis due to herpesvirus 6 and 7 (B10.01, B10.09)
      • non-simplex herpesviral encephalitis (B10.0-)
      • due to herpesvirus 7 B10.09
      • specified NEC B10.09
    • in (due to)
      • herpes (simplex) B00.4
        ICD-10-CM Diagnosis Code B00.4

        Herpesviral encephalitis

          2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
        Applicable To
        • Herpesviral meningoencephalitis
        • Simian B disease
        Type 1 Excludes
        • herpesviral encephalitis due to herpesvirus 6 and 7 (B10.01, B10.09)
        • non-simplex herpesviral encephalitis (B10.0-)
        • due to herpesvirus 7 B10.09
        • specified NEC B10.09
  • Herpes, herpesvirus, herpetic B00.9
    ICD-10-CM Diagnosis Code B00.9

    Herpesviral infection, unspecified

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
    Applicable To
    • Herpes simplex infection NOS
    • encephalitis B00.4
      ICD-10-CM Diagnosis Code B00.4

      Herpesviral encephalitis

        2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
      Applicable To
      • Herpesviral meningoencephalitis
      • Simian B disease
      Type 1 Excludes
      • herpesviral encephalitis due to herpesvirus 6 and 7 (B10.01, B10.09)
      • non-simplex herpesviral encephalitis (B10.0-)
      • due to herpesvirus 7 B10.09
      • specified NEC B10.09
    • human B00.9
      ICD-10-CM Diagnosis Code B00.9

      Herpesviral infection, unspecified

        2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
      Applicable To
      • Herpes simplex infection NOS
      • 7
        • encephalitis B10.09
  • Meningoencephalitis G04.90
    - see also Encephalitis
    ICD-10-CM Diagnosis Code G04.90

    Encephalitis and encephalomyelitis, unspecified

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
    Applicable To
    • Ventriculitis (cerebral) NOS
    • herpesviral, herpetic B00.4
      ICD-10-CM Diagnosis Code B00.4

      Herpesviral encephalitis

        2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
      Applicable To
      • Herpesviral meningoencephalitis
      • Simian B disease
      Type 1 Excludes
      • herpesviral encephalitis due to herpesvirus 6 and 7 (B10.01, B10.09)
      • non-simplex herpesviral encephalitis (B10.0-)
      • due to herpesvirus 7 B10.09
      • specified NEC B10.09
    • in (due to)
      • herpes B00.4
        ICD-10-CM Diagnosis Code B00.4

        Herpesviral encephalitis

          2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
        Applicable To
        • Herpesviral meningoencephalitis
        • Simian B disease
        Type 1 Excludes
        • herpesviral encephalitis due to herpesvirus 6 and 7 (B10.01, B10.09)
        • non-simplex herpesviral encephalitis (B10.0-)
        • due to herpesvirus 7 B10.09
        • specified NEC B10.09

ICD-10-CM Codes Adjacent To B10.09
B08.7 Yatapoxvirus infections
B08.70 Yatapoxvirus infection, unspecified
B08.71 Tanapox virus disease
B08.72 Yaba pox virus disease
B08.79 Other yatapoxvirus infections
B08.8 Other specified viral infections characterized by skin and mucous membrane lesions
B09 Unspecified viral infection characterized by skin and mucous membrane lesions
B10 Other human herpesviruses
B10.0 Other human herpesvirus encephalitis
B10.01 Human herpesvirus 6 encephalitis
B10.09 Other human herpesvirus encephalitis
B10.8 Other human herpesvirus infection
B10.81 Human herpesvirus 6 infection
B10.82 Human herpesvirus 7 infection
B10.89 Other human herpesvirus infection
B15 Acute hepatitis A
B15.0 Hepatitis A with hepatic coma
B15.9 Hepatitis A without hepatic coma
B16 Acute hepatitis B
B16.0 Acute hepatitis B with delta-agent with hepatic coma
B16.1 Acute hepatitis B with delta-agent without hepatic coma

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