PDQ
E208062
PDQ (Patient Demographics Query) is an IHE IT Infrastructure profile that defines standards-based mechanisms for querying and retrieving patient demographic information across healthcare systems.
All labels observed (2)
| Label | Occurrences |
|---|---|
| PDQ canonical | 5 |
| PDQ system | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1869354 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: PDQ Context triple: [IHE IT Infrastructure profiles, includesProfile, PDQ]
-
A.
PDS
PDS is the IATA airport code for the international airport serving Piedras Negras in the Mexican state of Coahuila.
-
B.
DoQ
DoQ is a network protocol that secures and accelerates DNS queries by running them over the QUIC transport layer.
-
C.
CDQ
CDQ is the National Rail station code for Cardiff Queen Street railway station, a major commuter hub in Cardiff, Wales.
-
D.
PBD
PBD is the IATA airport code for Porbandar Airport, a domestic airport serving the city of Porbandar in the Indian state of Gujarat.
-
E.
The QC
The QC is a popular nickname for Charlotte, North Carolina, reflecting its identity as a major financial and cultural hub in the southeastern United States.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: PDQ Target entity description: PDQ (Patient Demographics Query) is an IHE IT Infrastructure profile that defines standards-based mechanisms for querying and retrieving patient demographic information across healthcare systems.
-
A.
PDS
PDS is the IATA airport code for the international airport serving Piedras Negras in the Mexican state of Coahuila.
-
B.
DoQ
DoQ is a network protocol that secures and accelerates DNS queries by running them over the QUIC transport layer.
-
C.
CDQ
CDQ is the National Rail station code for Cardiff Queen Street railway station, a major commuter hub in Cardiff, Wales.
-
D.
PBD
PBD is the IATA airport code for Porbandar Airport, a domestic airport serving the city of Porbandar in the Indian state of Gujarat.
-
E.
The QC
The QC is a popular nickname for Charlotte, North Carolina, reflecting its identity as a major financial and cultural hub in the southeastern United States.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf | IHE IT Infrastructure profile ⓘ |
| abbreviationFor |
Patient Demographics Query
ⓘ
linked to:
FHIR Patient
|
| definedByOrganization | Integrating the Healthcare Enterprise ⓘ |
| definesMechanism |
retrieval of patient demographic records
ⓘ
standards-based patient demographic query ⓘ |
| distinguishedFrom | XCPD cross-community patient discovery ⓘ |
| documentedIn |
IHE IT Infrastructure Technical Framework Volume 1
ⓘ
linked to:
IHE Technical Framework
IHE IT Infrastructure Technical Framework Volume 2 ⓘ
linked to:
IHE IT Infrastructure profiles
|
| enables | integration of disparate healthcare systems ⓘ |
| focusesOn |
patient demographics
ⓘ
patient identification ⓘ |
| fullName | Patient Demographics Query ⓘ |
| hasActor |
PDQ Consumer
ⓘ
PDQ Supplier ⓘ Patient Demographics Consumer ⓘ Patient Demographics Supplier ⓘ |
| hasPurpose |
query patient demographic information
ⓘ
retrieve patient demographic information ⓘ |
| improves | interoperability of patient demographic data ⓘ |
| partOfDomain |
IHE IT Infrastructure Technical Framework
ⓘ
linked to:
IHE IT Infrastructure profiles
|
| relatedProfile |
PDQv3
ⓘ
linked to:
IHE PDQ
PIX ⓘ PIXv3 ⓘ
linked to:
PIX
XCPD ⓘ |
| roleOfPDQConsumer | initiates patient demographic queries ⓘ |
| roleOfPDQSupplier | responds to patient demographic queries ⓘ |
| scope | within a single patient identifier domain or enterprise ⓘ |
| supportsExactMatch | true ⓘ |
| supportsMultipleMatches | true ⓘ |
| supportsOperation |
retrieve matching patient records
ⓘ
search for patients by demographics ⓘ |
| supportsPartialMatch | true ⓘ |
| supportsQueryParameter |
address
ⓘ
date of birth ⓘ gender ⓘ patient identifier ⓘ patient name ⓘ telecom information ⓘ |
| supportsUseCase |
cross-system patient demographic lookup
ⓘ
patient identity discovery ⓘ |
| typicalDeployment |
EHR systems
ⓘ
hospital information systems ⓘ regional health information exchanges ⓘ |
| usedInDomain | healthcare information systems ⓘ |
| usesStandard |
HL7 Version 2
ⓘ
linked to:
HL7 standards
HL7 v2 QBP^Q22 query message ⓘ
linked to:
HL7 standards
HL7 v2 RSP^K22 response message ⓘ
linked to:
HL7 standards
|
| usesTransport |
MLLP
ⓘ
Web Services ⓘ
linked to:
SOAP API
|
| versionOfProfile |
PDQv3
ⓘ
linked to:
IHE PDQ
|
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: PDQ Description of subject: PDQ (Patient Demographics Query) is an IHE IT Infrastructure profile that defines standards-based mechanisms for querying and retrieving patient demographic information across healthcare systems.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: PDQ