B20 Human immunodeficiency virus [HIV] disease

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Includes

• acquired immune deficiency syndrome [AIDS]
• AIDS-related complex [ARC]
• HIV infection, symptomatic

Excludes1 (never code together)

• asymptomatic human immunodeficiency virus [HIV] infection status (Z21)
• exposure to HIV virus (Z20.6)
• inconclusive serologic evidence of HIV (R75)

Code first

• Human immunodeficiency virus [HIV] disease complicating pregnancy, childbirth and the puerperium, if applicable (O98.7-)

Use additional code

• code(s) to identify all manifestations of HIV infection

Applies from B20 Human immunodeficiency virus [HIV] disease

Includes

• acquired immune deficiency syndrome [AIDS]
• AIDS-related complex [ARC]
• HIV infection, symptomatic

Excludes1 (never code together)

• asymptomatic human immunodeficiency virus [HIV] infection status (Z21)
• exposure to HIV virus (Z20.6)
• inconclusive serologic evidence of HIV (R75)

Code first

• Human immunodeficiency virus [HIV] disease complicating pregnancy, childbirth and the puerperium, if applicable (O98.7-)

Use additional code

• code(s) to identify all manifestations of HIV infection

Risk adjustment (HCC)

• CMS-HCC V28: HCC 1 — HIV/AIDS
• CMS-HCC V22: HCC 1 — HIV/AIDS
• RxHCC V08: HCC 1 — HIV/AIDS
• ESRD V24: HCC 1

MS-DRG index

Defines the logic of DRG(s) 969-977 in MDC 25.

Approximate ICD-9-CM (GEMs)

• 042 Human immunodeficiency virus [HIV] disease

Code annotations containing back-references to B20

Back-references to B20

• Code First: B39 Histoplasmosis ("associated AIDS (B20)")
• Type 1 Excludes: B97.3 Retrovirus as the cause of diseases classified elsewhere ("Human immunodeficiency virus [HIV] disease (B20)")
• Code First: C46 Kaposi's sarcoma ("any human immunodeficiency virus [HIV] disease (B20)")
• Use Additional: D59.31 Infection-associated hemolytic-uremic syndrome ("Human immunodeficiency virus [HIV] disease (B20)")
• Type 1 Excludes: D61.81 Pancytopenia ("pancytopenia (due to) (with) human immunodeficiency virus disease (B20.-)")
• Type 1 Excludes: D84.81 Immunodeficiency due to conditions classified elsewhere ("human immunodeficiency virus [HIV] disease (B20)")
• Type 1 Excludes: D89.89 Other specified disorders involving the immune mechanism, not elsewhere classified ("human immunodeficiency virus disease (B20)")
• Code First: E88.14 HIV-associated lipodystrophy ("any human immunodeficiency virus [HIV] disease (B20)")
• Code First: F02 Dementia in other diseases classified elsewhere ("human immunodeficiency virus [HIV] disease (B20)")
• Code First: F06.7 Mild neurocognitive disorder due to known physiological condition ("human immunodeficiency virus [HIV] disease (B20)")
• Code First: G05 Encephalitis, myelitis and encephalomyelitis in diseases classified elsewhere ("human immunodeficiency virus [HIV] disease (B20)")
• Code First: H67 Otitis media in diseases classified elsewhere ("viral disease NEC (B00-B34)")
• Code Also: I27.21 Secondary pulmonary arterial hypertension ("human immunodeficiency virus [HIV] disease (B20)")
• Type 1 Excludes: I88 Nonspecific lymphadenitis ("human immunodeficiency virus [HIV] disease resulting in generalized lymphadenopathy (B20)")
• Type 1 Excludes: L04 Acute lymphadenitis ("human immunodeficiency virus [HIV] disease resulting in generalized lymphadenopathy (B20)")
• Use Additional: O98.7 Human immunodeficiency virus [HIV] disease complicating pregnancy, childbirth and the puerperium ("Acquired immune deficiency syndrome (AIDS) (B20)")
• Use Additional: O98.7 Human immunodeficiency virus [HIV] disease complicating pregnancy, childbirth and the puerperium ("Symptomatic HIV disease (B20)")
• Type 1 Excludes: R62.5 Other and unspecified lack of expected normal physiological development in childhood ("HIV disease resulting in failure to thrive (B20)")
• Type 1 Excludes: R75 Inconclusive laboratory evidence of human immunodeficiency virus [HIV] ("human immunodeficiency virus [HIV] disease (B20)")
• Type 1 Excludes: Z21 Asymptomatic human immunodeficiency virus [HIV] infection status ("acquired immunodeficiency syndrome (B20)")
• Type 1 Excludes: Z21 Asymptomatic human immunodeficiency virus [HIV] infection status ("human immunodeficiency virus [HIV] disease (B20)")

Back-references to B20

• Code First: B39 Histoplasmosis ("associated AIDS (B20)")
• Type 1 Excludes: B97.3 Retrovirus as the cause of diseases classified elsewhere ("Human immunodeficiency virus [HIV] disease (B20)")
• Code First: C46 Kaposi's sarcoma ("any human immunodeficiency virus [HIV] disease (B20)")
• Use Additional: D59.31 Infection-associated hemolytic-uremic syndrome ("Human immunodeficiency virus [HIV] disease (B20)")
• Type 1 Excludes: D61.81 Pancytopenia ("pancytopenia (due to) (with) human immunodeficiency virus disease (B20.-)")
• Type 1 Excludes: D84.81 Immunodeficiency due to conditions classified elsewhere ("human immunodeficiency virus [HIV] disease (B20)")
• Type 1 Excludes: D89.89 Other specified disorders involving the immune mechanism, not elsewhere classified ("human immunodeficiency virus disease (B20)")
• Code First: E88.14 HIV-associated lipodystrophy ("any human immunodeficiency virus [HIV] disease (B20)")
• Code First: F02 Dementia in other diseases classified elsewhere ("human immunodeficiency virus [HIV] disease (B20)")
• Code First: F06.7 Mild neurocognitive disorder due to known physiological condition ("human immunodeficiency virus [HIV] disease (B20)")
• Code First: G05 Encephalitis, myelitis and encephalomyelitis in diseases classified elsewhere ("human immunodeficiency virus [HIV] disease (B20)")
• Code First: H67 Otitis media in diseases classified elsewhere ("viral disease NEC (B00-B34)")
• Code Also: I27.21 Secondary pulmonary arterial hypertension ("human immunodeficiency virus [HIV] disease (B20)")
• Type 1 Excludes: I88 Nonspecific lymphadenitis ("human immunodeficiency virus [HIV] disease resulting in generalized lymphadenopathy (B20)")
• Type 1 Excludes: L04 Acute lymphadenitis ("human immunodeficiency virus [HIV] disease resulting in generalized lymphadenopathy (B20)")
• Use Additional: O98.7 Human immunodeficiency virus [HIV] disease complicating pregnancy, childbirth and the puerperium ("Acquired immune deficiency syndrome (AIDS) (B20)")
• Use Additional: O98.7 Human immunodeficiency virus [HIV] disease complicating pregnancy, childbirth and the puerperium ("Symptomatic HIV disease (B20)")
• Type 1 Excludes: R62.5 Other and unspecified lack of expected normal physiological development in childhood ("HIV disease resulting in failure to thrive (B20)")
• Type 1 Excludes: R75 Inconclusive laboratory evidence of human immunodeficiency virus [HIV] ("human immunodeficiency virus [HIV] disease (B20)")
• Type 1 Excludes: Z21 Asymptomatic human immunodeficiency virus [HIV] infection status ("acquired immunodeficiency syndrome (B20)")
• Type 1 Excludes: Z21 Asymptomatic human immunodeficiency virus [HIV] infection status ("human immunodeficiency virus [HIV] disease (B20)")

Diagnosis Index entries for B20

• Acquired › immunodeficiency syndrome (AIDS)
• AIDS (related complex)
• ARC (AIDS-related complex)
• Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety) › in (due to) › human immunodeficiency virus (HIV) disease
• Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety) › in (due to) › human immunodeficiency virus (HIV) disease › with behavioral disturbance
• Disease, diseased › human immunodeficiency virus (HIV)
• Disease, diseased › slim (HIV)
• Disease, diseased › viral, virus › human immunodeficiency (HIV)
• Encephalitis (chronic) (hemorrhagic) (idiopathic) (nonepidemic) (spurious) (subacute) › due to › human immunodeficiency virus (HIV) disease
• HIV
• Human › immunodeficiency virus (HIV) disease (infection)
• Human › immunodeficiency virus (HIV) disease (infection) › dementia
• Human › immunodeficiency virus (HIV) disease (infection) › dementia › with behavioral disturbance
• Slim disease (in HIV infection)
• Syndrome › HIV infection, acute

Nearby codes

• B20 Human immunodeficiency virus [HIV] disease (this code)