Z11.3 vs Z11.4
Z11.3 (Encounter for screening for infections with a predominantly sexual mode of transmission) compared with Z11.4 (Encounter for screening for human immunodeficiency virus [HIV]), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).
Can these codes be reported together?
Yes, when both are documented. Z11.3 carries an Excludes2 note covering Z11.4: “encounter for screening for human immunodeficiency virus [HIV] (Z11.4)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| Z11.3Encounter for screening for infections with a predominantly sexual mode of transmission | Z11.4Encounter for screening for human immunodeficiency virus [HIV] | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | Z00-Z99 — Factors Influencing Health Status and Contact with Health Services (Z00-Z99) | Z00-Z99 — Factors Influencing Health Status and Contact with Health Services (Z00-Z99) |
| Definition | Encounter for screening for infections with a predominantly sexual mode of transmission is a billable ICD-10-CM diagnosis code (Z11.3). | Encounter for screening for human immunodeficiency virus [HIV] is a billable ICD-10-CM diagnosis code (Z11.4). |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources