# Query Patient Demographic Records by Demographics Workflow ## Overview This transaction allows Point-of-Service (PoS) systems to query for patients that match supplied demographics. The following sequence diagram shows the steps involved. | **Workflow Maturity** |

Mature

One or more OpenHIE implementations of this workflow exist in one or more countries
Workflow is defined and ARB approved
Workflow is supported by mature standards

| | ----------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | Standards\* | |

Option 1

QBP^Q22 - IHE ITI-21
RSP^K22 - IHE ITI-21

Option 2

FHIR - Patient Demographics Query IHE ITI PDQm Transaction

| | Assumptions and Prerequisites | | The PoS system is a trusted application known by the HIE and it is registered with the interoperability layer to be able to send and receive data securely ([Common message security workflow](https://wiki.ohie.org/display/documents/Common+message+security+workflow)). | | Actors | |

PoS - The point of care system that captures patient identifiers, is responsible for sending the identifiers to the HIE.
IL - Mediates the transactions between the PoS system and the client registry.
CR - Manages patient demographics and identifier details

| ## Interaction Description The following is a description of the interaction steps. ![](https://1995843850-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fwz1sVRRgmMD5d3DIDoDn%2Fuploads%2Ff332wQSIQeHIY7uZ0Hn6%2FQueryPatientDemographicRecordsByDem.png?alt=media\&token=5e482dda-2f6b-44a6-9840-c85845f2be64) ## Technical details


Ref	Interaction	Endpoint	Description	Transaction Options
1	Get patient by demographics	IL	The message includes the query criteria which may include one or more patient identifiers and/or one or more demographic attributes.	1. PDQ ITI-21 transaction QBP-Q22 2. Patient Demographics Query IHE ITI PDQm Transaction
2	Get patient from CR by demographics	CR	The message from the PoS is passed directly through to the CR by the IL.	1. PDQ ITI-21 transaction QBP-Q22 2. Patient Demographics Query IHE ITI PDQm Transaction
3	Return patient record	IL	The response returns the patient(s) that matched the query criteria. It may consist of zero or more patient demographic records.	1. PDQ ITI-21 transaction RSP-K22 2. Query Patient Resource Response (ITI TF-2c:3.Y1.4.2): Bundle (Patient)
4	Return patient record	PoS	The message from the CR is passed directly through to the PoS by the IL	1. PDQ ITI-21 transaction RSP-K22 2. Query Patient Resource Response (ITI TF-2c:3.Y1.4.2): Bundle (Patient)