Z20.6 Contact with and (suspected) exposure to human immunodeficiency virus [HIV]

Billable ICD-10-CM code, FY2026.

Excludes1 (never code together)

• asymptomatic human immunodeficiency virus [HIV]
• HIV infection status (Z21)

Applies from Z20 Contact with and (suspected) exposure to communicable diseases

Excludes1 (never code together)

• carrier of infectious disease (Z22.-)
• diagnosed current infectious or parasitic disease -see Alphabetic Index

Excludes2 (not included here)

• personal history of infectious and parasitic diseases (Z86.1-)

MS-DRG index

Defines the logic of DRG(s) 795 in MDC 15.

Approximate ICD-9-CM (GEMs)

• V01.79 Contact with or exposure to other viral diseases (approximate)

Code annotations containing back-references to Z20.6

Back-references to Z20.6

• Type 1 Excludes: B20 Human immunodeficiency virus [HIV] disease ("exposure to HIV virus (Z20.6)")
• Type 1 Excludes: Z21 Asymptomatic human immunodeficiency virus [HIV] infection status ("contact with human immunodeficiency virus [HIV] (Z20.6)")
• Type 1 Excludes: Z21 Asymptomatic human immunodeficiency virus [HIV] infection status ("exposure to human immunodeficiency virus [HIV] (Z20.6)")
• Code Also: Z29.81 Encounter for HIV pre-exposure prophylaxis ("contact with and (suspected) exposure to human immunodeficiency virus [HIV] (Z20.6)")

Back-references to Z20

• Type 2 Excludes: Z77 Other contact with and (suspected) exposures hazardous to health ("contact with and (suspected) exposure to communicable diseases (Z20.-)")
• Type 2 Excludes: Z83 Family history of other specific disorders ("contact with and (suspected) exposure to communicable disease in the family (Z20.-)")

Diagnosis Index entries for Z20.6

• Contact (with) › AIDS virus
• Contact (with) › HIV
• Contact (with) › HTLV-III/LAV
• Contact (with) › human immunodeficiency virus (HIV)
• Exposure (to) › AIDS virus
• Exposure (to) › human immunodeficiency virus (HIV)
• Human › immunodeficiency virus (HIV) disease (infection) › contact
• Human › immunodeficiency virus (HIV) disease (infection) › exposure to

Nearby codes

• Z20.1 Contact with and (suspected) exposure to tuberculosis
• Z20.2 Contact with and (suspected) exposure to infections with a predominantly sexual mode of transmission
• Z20.3 Contact with and (suspected) exposure to rabies
• Z20.4 Contact with and (suspected) exposure to rubella
• Z20.5 Contact with and (suspected) exposure to viral hepatitis
• Z20.6 Contact with and (suspected) exposure to human immunodeficiency virus [HIV] (this code)
• Z20.7 Contact with and (suspected) exposure to pediculosis, acariasis and other infestations
• Z20.8 Contact with and (suspected) exposure to other communicable diseases
• Z20.81 Contact with and (suspected) exposure to other bacterial communicable diseases
• Z20.810 Contact with and (suspected) exposure to anthrax
• Z20.811 Contact with and (suspected) exposure to meningococcus