GET /Immunization
Summary: Search Immunization resources
Operation ID: —
Auth: none
Operation ID: —
Auth: none
Description
Search for patient immunization records.
Parameters (4)
_count
(integer, query, optional, default: 20)
date
(string, query, optional)
Vaccination date
patient
(string, query, optional)
Patient who received the vaccine
vaccine-code
(string, query, optional)
Vaccine code (CVX, etc.)
Examples (3)
| Title | Type | URL | Action |
|---|---|---|---|
| List recent immunizations with count limit | curl |
https://hapi.fhir.org/baseR4/Immunization?_count=5 |
|
| Search immunizations by patient reference | curl |
https://hapi.fhir.org/baseR4/Immunization?patient=Patient/example |
|
| Search COVID-19 vaccinations by vaccine code | curl |
https://hapi.fhir.org/baseR4/Immunization?vaccine-code=207 |
Probe History
Status Codes
| Time | Status | Latency | Size |
|---|---|---|---|
| 2026-03-23 11:00:23.059568 | 200 | 498ms | |
| 2026-03-23 09:47:20.941913 | 200 | 734ms | |
| 2026-03-23 09:21:07.824030 | 200 | 478ms |
Response Changes
| When | Old | New |
|---|---|---|
| 2026-03-23 09:47:20.941913 | d9e47495da55 |
97bd8767b516 |
| 2026-03-23 11:00:23.059568 | 97bd8767b516 |
67d1879d44b6 |