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Z11.4 ICD-10-CM Code: Encounter for screening for human immunodeficiency virus [HIV]

ICD-10-CM Code View

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FY 2026 Apr update / Factors influencing health status and contact with health services (Z00-Z99) / Persons encountering health services for examinations (Z00-Z13)

Z11.4

Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidance

Encounter for screening for human immunodeficiency virus [HIV]

A visit to get tested for HIV (human immunodeficiency virus) infection, typically as part of preventive health screening or risk assessment.

CMS-HCC V28

N/A

Not mapped

CMS-HCC V24

N/A

Not mapped

ACA/HHS

N/A

Not mapped

ESRD/PACE

N/A

Not mapped

RXHCC

N/A

Not mapped

Code Book Path

Official
Z11Encounter for screening for infectious and parasitic diseases
Z11.4Encounter for screening for human immunodeficiency virus [HIV]

Inclusion Terms

Official
  • Screening is the testing for disease or disease precursors in asymptomatic individuals so that early detection and treatment can be provided for those who test positive for the disease.

Excludes 2

Official

ICD-10-CM does not list Excludes 2 notes for Z11.4 in this effective period.

Related Child Codes

Official
Z11.0Encounter for screening for intestinal infectious diseases
Z11.1Encounter for screening for respiratory tuberculosis
Z11.2Encounter for screening for other bacterial diseases
Z11.3Encounter for screening for infections with a predominantly sexual mode of transmission
Z11.5Encounter for screening for other viral diseases

Includes

Official

ICD-10-CM does not list Includes notes for Z11.4 in this effective period.

Excludes 1

Official
  • encounter for diagnostic examination-code to sign or symptom

Code First

Official

ICD-10-CM does not list Code First sequencing instructions for Z11.4 in this effective period.

Use Additional

Official

ICD-10-CM does not list Use Additional Code instructions for Z11.4 in this effective period.

Code Also

Official

ICD-10-CM does not list Code Also instructions for Z11.4 in this effective period.

Buddy Documentation Tip

HCC Buddy guidance
Use this code for screening encounters only; if HIV is diagnosed, use B20 or B21 codes instead
This is appropriate for routine screening, high-risk individuals, or prenatal screening

Last updated: FY2026 ICD-10-CM Apr update, Apr 1, 2026 through Sep 30, 2026. CMS-HCC V28 is 100% phased in for payment year 2026.

Is Z11.4 an HCC code?

No. Z11.4 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.

Code
Z11.4
Description
Encounter for screening for human immunodeficiency virus [HIV]
HCC (V28)
No CMS-HCC V28 mapping
RAF
Billable
Yes
Payment year
2026

Coder workflow notes

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This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

Z11.4 is the ICD-10-CM diagnosis code for encounter for screening for human immunodeficiency virus [hiv]. A visit to get tested for HIV (human immunodeficiency virus) infection, typically as part of preventive health screening or risk assessment. Z11.4 sits in the ICD-10-CM chapter for factors influencing health status and contact with health services (z00-z99), within the section covering persons encountering health services for examinations (z00-z13).

Z11.4 is a billable ICD-10-CM code but does not map to a payment HCC under the CMS-HCC V28, V24, ESRD, or RxHCC risk adjustment models. It can be reported on Medicare Advantage encounter data submissions but it does not contribute to a beneficiary's RAF score and therefore does not affect risk-adjusted payments to the plan.

Use this code for screening encounters only; if HIV is diagnosed, use B20 or B21 codes instead.

HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for Z11.4 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.

Coding Tips

  • Use this code for screening encounters only; if HIV is diagnosed, use B20 or B21 codes instead
  • This is appropriate for routine screening, high-risk individuals, or prenatal screening

Child Codes

Code Hierarchy

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