2018/2019 ICD-10-CM Diagnosis Code B20

Human immunodeficiency virus [HIV] disease

Use Additional
Use Additional Help
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. In most cases the manifestation codes will have in the code title, "in diseases classified elsewhere." Codes with this title are a component of the etiology/manifestation convention. The code title indicates that it is a manifestation code. "In diseases classified elsewhere" codes are never permitted to be used as first listed or principle diagnosis codes. They must be used in conjunction with an underlying condition code and they must be listed following the underlying condition.
  • code(s) to identify all manifestations of HIV infection
Code First
Code First Help
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. In most cases the manifestation codes will have in the code title, "in diseases classified elsewhere." Codes with this title are a component of the etiology/manifestation convention. The code title indicates that it is a manifestation code. "In diseases classified elsewhere" codes are never permitted to be used as first listed or principle diagnosis codes. They must be used in conjunction with an underlying condition code and they must be listed following the underlying condition.
  • Human immunodeficiency virus [HIV] disease complicating pregnancy, childbirth and the puerperium, if applicable (
    ICD-10-CM Diagnosis Code O98.7

    Human immunodeficiency virus [HIV] disease complicating pregnancy, childbirth and the puerperium

      2016 2017 2018 2019 Non-Billable/Non-Specific Code
    Use Additional
    • code to identify the type of HIV disease:
    • Acquired immune deficiency syndrome (AIDS) (B20)
    • Asymptomatic HIV status (Z21)
    • HIV positive NOS (Z21)
    • Symptomatic HIV disease (B20)
    O98.7-
    )
Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as B20. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • asymptomatic human immunodeficiency virus [HIV] infection status (
    ICD-10-CM Diagnosis Code Z21

    Asymptomatic human immunodeficiency virus [HIV] infection status

      2016 2017 2018 2019 Billable/Specific Code Questionable As Admission Dx
    Applicable To
    • HIV positive NOS
    Code First
    • Human immunodeficiency virus [HIV] disease complicating pregnancy, childbirth and the puerperium, if applicable (O98.7-)
    Type 1 Excludes
    • acquired immunodeficiency syndrome (B20)
    • contact with human immunodeficiency virus [HIV] (Z20.6)
    • exposure to human immunodeficiency virus [HIV] (Z20.6)
    • human immunodeficiency virus [HIV] disease (B20)
    • inconclusive laboratory evidence of human immunodeficiency virus [HIV] (R75)
    Z21
    )
  • exposure to HIV virus (
    ICD-10-CM Diagnosis Code Z20.6

    Contact with and (suspected) exposure to human immunodeficiency virus [HIV]

      2016 2017 2018 2019 Billable/Specific Code
    Type 1 Excludes
    • asymptomatic human immunodeficiency virus [HIV]
    • HIV infection status (Z21)
    Z20.6
    )
  • inconclusive serologic evidence of HIV (
    ICD-10-CM Diagnosis Code R75

    Inconclusive laboratory evidence of human immunodeficiency virus [HIV]

      2016 2017 2018 2019 Billable/Specific Code
    Applicable To
    • Nonconclusive HIV-test finding in infants
    Type 1 Excludes
    • asymptomatic human immunodeficiency virus [HIV] infection status (Z21)
    • human immunodeficiency virus [HIV] disease (B20)
    R75
    )
Includes
Includes Help
"Includes" further defines, or give examples of, the content of the code or category.
  • acquired immune deficiency syndrome [AIDS]
  • AIDS-related complex [ARC]
  • HIV infection, symptomatic
The following code(s) above B20 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 B20:
  • A00-B99
    2019 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 Clinical Information ICD-10-CM B20 is grouped within Diagnostic Related Group(s) (MS-DRG v36.0):

Convert B20 to ICD-9-CM

Code History
Code annotations containing back-references to B20:

Diagnosis Index entries containing back-references to B20:

ICD-10-CM Codes Adjacent To B20
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
B19.21 …… with hepatic coma
B19.9 Unspecified viral hepatitis without hepatic coma
B20 Human immunodeficiency virus [HIV] disease
B25 Cytomegaloviral disease
B25.0 Cytomegaloviral pneumonitis
B25.1 Cytomegaloviral hepatitis
B25.2 Cytomegaloviral pancreatitis
B25.8 Other cytomegaloviral diseases
B25.9 Cytomegaloviral disease, unspecified
B26 Mumps
B26.0 Mumps orchitis
B26.1 Mumps meningitis
B26.2 Mumps encephalitis

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