PID-3 Patient Identifier List (HL7 v2.7)
PID-3 (Patient Identifier List) is required (R), repeating, datatype CX in HL7 v2.7. It carries every identifier the sending system holds for the patient, one CX repetition per identifier.
| Field | PID-3 |
|---|---|
| Name | Patient Identifier List |
| Datatype | CX |
| Optionality | R (required) |
| Repeats | Yes |
| HL7 version | 2.7 |
Example
A live, engine-generated example lands here with the phase-1 data export.
Validation context
- strict A message with no PID-3 repetition raises a required-field finding in strict mode. Compatibility mode reports the same finding at reduced severity.
This answer, in your terminal
pidgeon lookup PID-3 --version 2.7Wire it into your AI agent:
claude mcp add pidgeon -- npx -y @pidgeonhealth/mcpDownload Post free to browse this reference with generation attached.