| ICD Code | Description |
|---|---|
| Z20 | Contact with and (suspected) exposure to communicable diseases |
| Z21 | Asymptomatic human immunodeficiency virus [HIV] infection status |
| Z22 | Carrier of infectious disease |
| Z23 | Encounter for immunization |
| Z28 | Immunization not carried out and underimmunization status |
| Z29 | Encounter for other prophylactic measures |