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ICD-10-CM 2027 diagnosis code

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

✓ Billable / specific

Z20.6 is a valid, billable ICD-10-CM code for contact with and (suspected) exposure to human immunodeficiency virus [hiv]. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Contact w and (suspected) exposure to human immunodef virus

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About Z20.6

Z20.6 is the ICD-10-CM diagnosis code for contact with and (suspected) exposure to human immunodeficiency virus [HIV]. It belongs to category Z20 (contact with and (suspected) exposure to communicable diseases), block Z20-Z29 (persons with potential health hazards related to communicable diseases) and chapter 21 (factors influencing health status and contact with health services). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within Z20 (contact with and (suspected) exposure to communicable diseases), Z20.6 is specifically for contact with and (suspected) exposure to human immunodeficiency virus [HIV]. Related codes cover intestinal infectious diseases (Z20.0), tuberculosis (Z20.1), infections with a predominantly sexual mode of transmission (Z20.2), rabies (Z20.3), rubella (Z20.4), viral hepatitis (Z20.5), pediculosis, acariasis and other infestations (Z20.7), other communicable diseases (Z20.8) and 1 more.

Don't report Z20.6 together with the conditions in its Excludes1 note: asymptomatic human immunodeficiency virus [HIV] and HIV infection status (Z21).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 795 (Normal Newborn, relative weight 0.2022) and DRG 951 (Other Factors Influencing Health Status, relative weight 0.5577), in MDC 15 (Newborns and Other Neonates with Conditions Originating in the Perinatal Period) and MDC 23 (Factors Influencing Health Status and Other Contacts with Health Services), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as V01.79 (contact with or exposure to other viral diseases).

Coding notes

Excludes1Not coded here — never report together with this code
  • asymptomatic human immunodeficiency virus [HIV]
  • HIV infection status (Z21)

Notes that apply from higher levels

Instructions written at a parent level also apply to Z20.6.

› From Z20 Contact with and (suspected) exposure to communicable diseases
Excludes1
  • carrier of infectious disease (Z22.-)
  • diagnosed current infectious or parasitic disease -see Alphabetic Index
Excludes2
  • personal history of infectious and parasitic diseases (Z86.1-)

Broader instructions also apply from Chapter 21: Factors influencing health status and contact with health services.

Alphabetic index entries

8 entries

Terms in the official ICD-10-CM index that lead to Z20.6.

Codes whose notes reference Z20.6

MS-DRG v44.0 grouping

All DRGs →

Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.

MDC 15 · Newborns and Other Neonates with Conditions Originating in the Perinatal Period

MDC 23 · Factors Influencing Health Status and Other Contacts with Health Services

ICD-9-CM equivalent

Converter →
  • V01.79Contact with or exposure to other viral diseasesapproximate

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about Z20.6

Is Z20.6 billable?

Yes. Z20.6 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can Z20.6 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict Z20.6 as a principal diagnosis.

Is Z20.6 a CC or MCC?

No. Z20.6 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does Z20.6 group to?

Z20.6 is used in the MS-DRG v44.0 logic for MS-DRG 795 (Normal Newborn) and MS-DRG 951 (Other Factors Influencing Health Status). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.

What is the ICD-9 code for Z20.6?

The CMS General Equivalence Mappings map Z20.6 to ICD-9-CM V01.79.