2025
ICD-10-CM
Diagnosis
Code

Z21 Asymptomatic human immunodeficiency virus [HIV] infection status

Billable
2016–2025

Z21 is a billable/specific diagnosis code from the 2025 ICD-10-CM used to classify the following condition: Asymptomatic human immunodeficiency virus [HIV] infection status.

Inclusion term

HIV positive NOS

Code first

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

Type 1 excludes

Acquired immunodeficiency syndrome (B20)
Contact with human immunodeficiency virus [HIV] (Z20.6)
Exposure to human immunodeficiency virus [HIV] (Z20.6)
Human immunodeficiency virus [HIV] disease (B20)
Inconclusive laboratory evidence of human immunodeficiency virus [HIV] (R75)

Versions

2025
No changes
2024
No changes
2023
No changes
2022
No changes
2021
No changes
2020
No changes
2019
No changes
2018
No changes
2017
No changes
2016
New code