2021 ICD-10-CM Diagnosis Code B09

Unspecified viral infection characterized by skin and mucous membrane lesions

    2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • B09 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • Short description: Unsp viral infection with skin and mucous membrane lesions
  • The 2021 edition of ICD-10-CM B09 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of B09 - other international versions of ICD-10 B09 may differ.
Applicable To
  • Viral enanthema NOS
  • Viral exanthema NOS
The following code(s) above B09 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 B09:
  • A00-B99
    2021 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
Approximate Synonyms
  • Keratitis in exanthema
  • Keratitis in exanthema (eye condition)
  • Unilateral laterothoracic exanthem
  • Viral exanthem
  • Viral exanthem (rash from virus)
ICD-10-CM B09 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
  • 865 Viral illness with mcc
  • 866 Viral illness without mcc

Convert B09 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

Diagnosis Index entries containing back-references to B09:
  • Enanthema, viral B09
  • 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 Billable/Specific Code
    Applicable To
    • Ventriculitis (cerebral) NOS
    • postexanthematous NEC B09
  • Exanthem, exanthema - see also Rash
  • Infection, infected, infective (opportunistic) B99.9
    ICD-10-CM Diagnosis Code B99.9

    Unspecified infectious disease

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    • virus, viral NOS B34.9
      ICD-10-CM Diagnosis Code B34.9

      Viral infection, unspecified

        2016 2017 2018 2019 2020 2021 Billable/Specific Code
      Applicable To
      • Viremia NOS
      • exanthem NOS B09
  • Keratitis (nodular) (nonulcerative) (simple) (zonular) H16.9
    ICD-10-CM Diagnosis Code H16.9

    Unspecified keratitis

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • Keratoconjunctivitis H16.20-
    ICD-10-CM Diagnosis Code H16.20-

    Unspecified keratoconjunctivitis

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Applicable To
    • Superficial keratitis with conjunctivitis NOS
  • Roseola B09

ICD-10-CM Codes Adjacent To B09
B08.60 Parapoxvirus infection, unspecified
B08.61 Bovine stomatitis
B08.62 Sealpox
B08.69 Other parapoxvirus infections
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

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