2026 ICD-10-CM Diagnosis Code Z20.6Contact with and (suspected) exposure to human immunodeficiency virus [HIV]

ICD-10-CM Codes›Z00–Z99›Z20-Z29›suspected

ICD-10-CM Z20.6
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

Z20.6 is a billable ICD-10-CM diagnosis code for contact with and (suspected) exposure to human immunodeficiency virus [HIV]. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). Coders also document this condition as exposure to Human immunodeficiency virus. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Exposure, encounters, screening or contact with infectious disease.

Code Identity

ICD-10-CM Code
Z20.6
Billable Status
Yes — Valid for Submission
Code Describes
Contact with and (suspected) exposure to human immunodeficiency virus [HIV]
Short Description
Contact w and (suspected) exposure to human immunodef virus
Parent Code
Z20
Contact with and (suspected) exposure to communicable diseases

Code Classification

ChapterZ00–Z99Factors influencing health status and contact with health services
SectionZ20-Z29Persons with potential health hazards related to communicable diseases
CategorysuspectedContact with and exposure to communicable diseases (Z20)
This CodeZ20.6Contact with and (suspected) exposure to human immunodeficiency virus [HIV]

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Exposure to Human immunodeficiency virus

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Type 1 Excludes

  • asymptomatic human immunodeficiency virus HIV
  • HIV infection status Z21

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • 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

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR FAC016
Exposure, encounters, screening or contact with infectious disease
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

HIV

HIV stands for human immunodeficiency virus. HIV harms your immune system by destroying a type of white blood cell that helps your body fight infection. This puts you at risk for other infections and diseases.

The full article covers:

  • What is HIV?
  • What is AIDS?
  • How does HIV spread?
  • Who is at risk for HIV infection?
  • What are the symptoms of HIV?
  • How do I know if I have HIV?
  • What are the treatments for HIV?
  • Can HIV infection be prevented?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert Z20.6 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
V01.79 Viral dis contact NEC
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About Z20.6Overview

Is Z20.6 a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report contact with and (suspected) exposure to human immunodeficiency virus [HIV] on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What is the ICD-9 equivalent of Z20.6?

Under the General Equivalence Mappings, contact with and (suspected) exposure to human immunodeficiency virus [HIV] converts to ICD-9-CM V01.79 (viral dis contact NEC). The mapping is approximate, so confirm the match fits the documentation.