2019 ICD-10-CM Diagnosis Code B20

Human immunodeficiency virus [HIV] disease

    2016 2017 2018 2019 Billable/Specific Code
  • B20 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2019 edition of ICD-10-CM B20 became effective on October 1, 2018.
  • This is the American ICD-10-CM version of B20 - other international versions of ICD-10 B20 may differ.
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
  • Acquired immune deficiency syndrome (aids) in childbirth
  • Acquired immune deficiency syndrome (aids) postpartum
  • Acquired immune deficiency syndrome with pregnancy
  • Acquired immune deficiency syndrome-related nephropathy
  • Aids
  • Aids dementia complex
  • Aids in childbirth
  • Aids wasting disease
  • Aids with dementia
  • Aids with neuropathy (nerve disease)
  • Aids with polyneuropathy (multiple nerve disease)
  • Aids, cdc stage a3
  • Aids, cdc stage b3
  • Aids, cdc stage c1
  • Aids, cdc stage c2
  • Aids, cdc stage c3
  • Cachexia associated with aids
  • Cognitive impairment due to human immunodeficiency virus infection
  • Dementia associated with aids
  • Hiv cdc category a3 (aids)
  • Hiv cdc category b3 (aids)
  • Hiv cdc category c1 (aids)
  • Hiv cdc category c2 (aids)
  • Hiv cdc category c3 (aids)
  • Hiv in pregnancy
  • Hiv infection symptomatic
  • Hiv infection symptomatic b1
  • Hiv infection symptomatic b2
  • Hiv lipoatrophy
  • Hiv related cognitive impairment
  • Hiv related non hodgkins lymphoma
  • Hiv1 infection, symptomatic
  • Human immunodeficiency virus myelitis
  • Lipoatrophy due to hiv infection and treatment
  • Myelitis due to hiv
  • Nephropathy due to hiv
  • Neuropathy due to human immunodeficiency virus
  • Non-hodgkin lymphoma associated with human immunodeficiency virus infection
  • Polyneuropathy associated with aids
  • Postpartum aids (after childbirth)
  • Symptomatic human immunodeficiency virus (hiv) 1 infection
  • Symptomatic human immunodeficiency virus (hiv) infection category b1
  • Symptomatic human immunodeficiency virus (hiv) infection category b2
  • Symptomatic human immunodeficiency virus infection
Clinical Information
  • A disease caused by human immunodeficiency virus (hiv). People with acquired immunodeficiency syndrome are at an increased risk for developing certain cancers and for infections that usually occur only in individuals with a weak immune system.
  • A prodromal phase of infection with the human immunodeficiency virus (hiv). Laboratory criteria separating aids-related complex (arc) from aids include elevated or hyperactive b-cell humoral immune responses, compared to depressed or normal antibody reactivity in aids; follicular or mixed hyperplasia in arc lymph nodes, leading to lymphocyte degeneration and depletion more typical of aids; evolving succession of histopathological lesions such as localization of kaposi's sarcoma, signaling the transition to the full-blown aids.
  • A syndrome resulting from the acquired deficiency of cellular immunity caused by the human immunodeficiency virus (hiv). It is characterized by the reduction of the helper t-lymphocytes in the peripheral blood and the lymph nodes. Symptoms include generalized lymphadenopathy, fever, weight loss, and chronic diarrhea. Patients with aids are especially susceptible to opportunistic infections (usually pneumocystis carinii pneumonia, cytomegalovirus (cmv) infections, tuberculosis, candida infections, and cryptococcosis), and the development of malignant neoplasms (usually non-hodgkin's lymphoma and kaposi's sarcoma). The human immunodeficiency virus is transmitted through sexual contact, sharing of contaminated needles, or transfusion of contaminated blood.
  • An acquired defect of cellular immunity associated with infection by the human immunodeficiency virus (hiv), a cd4-positive t-lymphocyte count under 200 cells/microliter or less than 14% of total lymphocytes, and increased susceptibility to opportunistic infections and malignant neoplasms. Clinical manifestations also include emaciation (wasting) and dementia. These elements reflect criteria for aids as defined by the cdc in 1993.
  • An infection caused by the human immunodeficiency virus.
  • Any state of infection accompanied by evidence of hiv in the body (positive test for hiv genome, cdna, proteins, antigens, or antibodies); may be medically asymptomatic or symptomatic; use aids when appropriate.
  • Includes the spectrum of human immunodeficiency virus infections that range from asymptomatic seropositivity, thru aids-related complex (arc), to acquired immunodeficiency syndrome (aids).
  • One or more indicator diseases, depending on laboratory evidence of hiv infection (cdc); late phase of hiv infection characterized by marked suppression of immune function resulting in opportunistic infections, neoplasms, and other systemic symptoms (niaid).
ICD-10-CM B20 is grouped within Diagnostic Related Group(s) (MS-DRG v36.0):
  • 969 Hiv with extensive o.r. Procedure with mcc
  • 970 Hiv with extensive o.r. Procedure without mcc
  • 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
  • 977 Hiv with or without other related condition
  • 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 B20 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
Code annotations containing back-references to B20:
  • Code Also: I27.21
    ICD-10-CM Diagnosis Code I27.21

    Secondary pulmonary arterial hypertension

      2018 - New Code 2019 Billable/Specific Code
    Applicable To
    • (Associated) (drug-induced) (toxin-induced) pulmonary arterial hypertension NOS
    • (Associated) (drug-induced) (toxin-induced) (secondary) group 1 pulmonary hypertension
    Code Also
    • associated conditions if applicable, or adverse effects of drugs or toxins, such as:
    • adverse effect of appetite depressants (T50.5X5)
    • congenital heart disease (Q20-Q28)
    • human immunodeficiency virus [HIV] disease (B20)
    • polymyositis (M33.2-)
    • portal hypertension (K76.6)
    • rheumatoid arthritis (M05.-)
    • schistosomiasis (B65.-)
    • Sjögren syndrome (M35.0-)
    • systemic sclerosis (M34.-)
  • Code First: B39
    , C46
    , F02
    , G05
    ICD-10-CM Diagnosis Code B39

    Histoplasmosis

      2016 2017 2018 2019 Non-Billable/Non-Specific Code
    Code First
    • associated AIDS (B20)
    Use Additional
    • code for any associated manifestations, such as:
    • endocarditis (I39)
    • meningitis (G02)
    • pericarditis (I32)
    • retinitis (H32)
    ICD-10-CM Diagnosis Code C46

    Kaposi's sarcoma

      2016 2017 2018 2019 Non-Billable/Non-Specific Code
    Code First
    • any human immunodeficiency virus [HIV] disease (B20)
    ICD-10-CM Diagnosis Code F02

    Dementia in other diseases classified elsewhere

      2016 2017 2018 2019 Non-Billable/Non-Specific Code
    Code First
    • the underlying physiological condition, such as:
    • Alzheimer's (G30.-)
    • cerebral lipidosis (E75.4)
    • Creutzfeldt-Jakob disease (A81.0-)
    • dementia with Lewy bodies (G31.83)
    • dementia with Parkinsonism (G31.83)
    • epilepsy and recurrent seizures (G40.-)
    • frontotemporal dementia (G31.09)
    • hepatolenticular degeneration (E83.0)
    • human immunodeficiency virus [HIV] disease (B20)
    • Huntington's disease (G10)
    • hypercalcemia (E83.52)
    • hypothyroidism, acquired (E00-E03.-)
    • intoxications (T36-T65)
    • Jakob-Creutzfeldt disease (A81.0-)
    • multiple sclerosis (G35)
    • neurosyphilis (A52.17)
    • niacin deficiency [pellagra] (E52)
    • Parkinson's disease (G20)
    • Pick's disease (G31.01)
    • polyarteritis nodosa (M30.0)
    • prion disease (A81.9)
    • systemic lupus erythematosus (M32.-)
    • traumatic brain injury (S06.-)
    • trypanosomiasis (B56.-, B57.-)
    • vitamin B deficiency (E53.8)
    Includes
    • Major neurocognitive disorder in other diseases classified elsewhere
    Type 2 Excludes
    • dementia in alcohol and psychoactive substance disorders (F10-F19, with .17, .27, .97)
    • vascular dementia (F01.5-)
    ICD-10-CM Diagnosis Code G05

    Encephalitis, myelitis and encephalomyelitis in diseases classified elsewhere

      2016 2017 2018 2019 Non-Billable/Non-Specific Code
    Code First
    • underlying disease, such as:
    • human immunodeficiency virus [HIV] disease (B20)
    • poliovirus (A80.-)
    • suppurative otitis media (H66.01-H66.4)
    • trichinellosis (B75)
    Type 1 Excludes
    • adenoviral encephalitis, myelitis and encephalomyelitis (A85.1)
    • congenital toxoplasmosis encephalitis, myelitis and encephalomyelitis (P37.1)
    • cytomegaloviral encephalitis, myelitis and encephalomyelitis (B25.8)
    • encephalitis, myelitis and encephalomyelitis (in) measles (B05.0)
    • encephalitis, myelitis and encephalomyelitis (in) systemic lupus erythematosus (M32.19)
    • enteroviral encephalitis, myelitis and encephalomyelitis (A85.0)
    • eosinophilic meningoencephalitis (B83.2)
    • herpesviral [herpes simplex] encephalitis, myelitis and encephalomyelitis (B00.4)
    • listerial encephalitis, myelitis and encephalomyelitis (A32.12)
    • meningococcal encephalitis, myelitis and encephalomyelitis (A39.81)
    • mumps encephalitis, myelitis and encephalomyelitis (B26.2)
    • postchickenpox encephalitis, myelitis and encephalomyelitis (B01.1-)
    • rubella encephalitis, myelitis and encephalomyelitis (B06.01)
    • toxoplasmosis encephalitis, myelitis and encephalomyelitis (B58.2)
    • zoster encephalitis, myelitis and encephalomyelitis (B02.0)
  • Type 1 Excludes: I88
    , B97.3
    , D61.81
    , D89.89
    , L04
    , R62.5
    , R75
    , Z21
    , Z21
    ICD-10-CM Diagnosis Code I88

    Nonspecific lymphadenitis

      2016 2017 2018 2019 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • acute lymphadenitis, except mesenteric (L04.-)
    • enlarged lymph nodes NOS (R59.-)
    • human immunodeficiency virus [HIV] disease resulting in generalized lymphadenopathy (B20)
    ICD-10-CM Diagnosis Code B97.3

    Retrovirus as the cause of diseases classified elsewhere

      2016 2017 2018 2019 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • Human immunodeficiency virus [HIV] disease (B20)
    ICD-10-CM Diagnosis Code D61.81

    Pancytopenia

      2016 2017 2018 2019 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • pancytopenia (due to) (with) aplastic anemia (D61.9)
    • pancytopenia (due to) (with) bone marrow infiltration (D61.82)
    • pancytopenia (due to) (with) congenital (pure) red cell aplasia (D61.01)
    • pancytopenia (due to) (with) hairy cell leukemia (C91.4-)
    • pancytopenia (due to) (with) human immunodeficiency virus disease (B20.-)
    • pancytopenia (due to) (with) leukoerythroblastic anemia (D61.82)
    • pancytopenia (due to) (with) myeloproliferative disease (D47.1)
    Type 2 Excludes
    • pancytopenia (due to) (with) myelodysplastic syndromes (D46.-)
    ICD-10-CM Diagnosis Code D89.89

    Other specified disorders involving the immune mechanism, not elsewhere classified

      2016 2017 2018 2019 Billable/Specific Code
    Type 1 Excludes
    • human immunodeficiency virus disease (B20)
    ICD-10-CM Diagnosis Code L04

    Acute lymphadenitis

      2016 2017 2018 2019 Non-Billable/Non-Specific Code
    Includes
    • abscess (acute) of lymph nodes, except mesenteric
    • acute lymphadenitis, except mesenteric
    Type 1 Excludes
    • chronic or subacute lymphadenitis, except mesenteric (I88.1)
    • enlarged lymph nodes (R59.-)
    • human immunodeficiency virus [HIV] disease resulting in generalized lymphadenopathy (B20)
    • lymphadenitis NOS (I88.9)
    • nonspecific mesenteric lymphadenitis (I88.0)
    ICD-10-CM Diagnosis Code R62.5

    Other and unspecified lack of expected normal physiological development in childhood

      2016 2017 2018 2019 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • HIV disease resulting in failure to thrive (B20)
    • physical retardation due to malnutrition (E45)
    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)
    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)
    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)
  • Applicable To: Z83.0
    ICD-10-CM Diagnosis Code Z83.0

    Family history of human immunodeficiency virus [HIV] disease

      2016 2017 2018 2019 Billable/Specific Code POA Exempt
    Applicable To
    • Conditions classifiable to B20
  • Use Additional: O98.7
    , O98.7
    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)
    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)

Diagnosis Index entries containing back-references to B20:
  • Acquired - see also condition
    • immunodeficiency syndrome B20 (AIDS)
  • AIDS B20 (related complex)
  • ARC B20 (AIDS-related complex)
  • Dementia (degenerative (primary)) (old age) (persisting) F03.90
    ICD-10-CM Diagnosis Code F03.90

    Unspecified dementia without behavioral disturbance

      2016 2017 2018 2019 Billable/Specific Code Adult Dx (15-124 years)
    Applicable To
    • Dementia NOS
  • Disease, diseased - see also Syndrome
    • viral, virus B34.9
      - see also Disease, by type of virus
      ICD-10-CM Diagnosis Code B34.9

      Viral infection, unspecified

        2016 2017 2018 2019 Billable/Specific Code
      Applicable To
      • Viremia NOS
      • human immunodeficiency B20 (HIV)
    • human immunodeficiency virus B20 (HIV)
    • slim B20 (HIV)
  • Encephalitis (chronic) (hemorrhagic) (idiopathic) (nonepidemic) (spurious) (subacute) G04.90
    ICD-10-CM Diagnosis Code G04.90

    Encephalitis and encephalomyelitis, unspecified

      2016 2017 2018 2019 Billable/Specific Code
    Applicable To
    • Ventriculitis (cerebral) NOS
    • due to
      • human immunodeficiency virus B20 (HIV)
  • HIV B20 - see also Human, immunodeficiency virus
  • Human
  • Slim disease B20 (in HIV infection)
  • Syndrome - see also Disease
    • HIV infection, acute 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.