NHDR Implementation Guide Release 1.0, published by NHDR. This guide is not an authorized publication; it is the continuous build for version 0.1.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/PROJ-PHILHEALTH-EA-NHDR/PhilHealth-NHDR-IG-Review/ and changes regularly. See the Directory of published versions

Extensions

The following are the extensions utilized in the PHCDI Implementation Guide. These extensions represent additional elements or concepts that are not covered by the standard core resources provided by HL7 FHIR. Extensions are used to customize the FHIR standard to address specific requirements or use cases that are unique to an implementation, without compromising the base FHIR model's interoperability or structure.

Extensions are typically designed and implemented to cater to the particular needs of a health data exchange, such as those outlined by the Philippine Health Data Interoperability Framework, ensuring the inclusion of essential localized or contextual information. These elements are defined outside of the core FHIR specification and adhere to strict guidelines to maintain consistency and compatibility with existing FHIR standards.

In the case of the PHCDI Implementation Guide, these extensions allow for the representation of country-specific data elements, regulatory requirements, or business rules that are critical for achieving the national health data repository's objectives, while still leveraging the global FHIR framework for data interoperability.

Extensions:

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Extension Name	Description	Used in
Address (extension)	Address where the observation was made.	PH_Observation
Age Days	Age of the patient in days.	PH_Encounter
Age Months	Age of the patient in months.	PH_Encounter
Age Years	Age of the patient in years.	PH_Encounter
Barangay	Code of the barangay from the Philippine Standard Geographic Code (PSGC)	PH_Address
CityMunicipality	Code of the city/municipality from the Philippine Standard Geographic Code (PSGC)	PH_Address
Date Interview	Date of interview.	PH_Encounter
Date Investigation	Date of investigation.	PH_Encounter
Date Released	Date when the specimen was released.	PH_Specimen
Educational Attainment	Highest educational attainment of the patient.	PH_Patient
Encounter (Extension)	Extension to capture healthcare encounters.	PH_Claim / PH_MedicationAdministration / PH_MedicationStatement
Indigenous Group	Indigenous group that the patient belongs to.	PH_Patient
Indigenous People	If the patient is a member of an indigenous group.	PH_Patient
Interviewer	Name of the interviewer at first point of contact.	PH_Encounter
Investigator Name	Name of the investigator/assessor.	PH_Encounter
Medication Type	Medication Type.	PH_Medication
Member Type	Membership Type	PH_Patient
Nationality	The nationality of the patient.	PH_Patient
Occupation	Patient's occupation.	PH_Patient
Packaging	Detailed description on the medication packaging.	PH_Medication
Patient Classification	Classification of patient.	PH_Encounter
Patient Type	Patient Type	PH_Patient
Province	Code of the province from the Philippine Standard Geographic Code (PSGC).	PH_Address
Race	Extension to capture the race of the patient.	PH_Patient
Recorded Date	Indicates the timestamp when the record was uploaded to the NHDR.	PH_MedicationAdministration / PH_Observation / PH_Patient / PH_Procedure / PH_Specimen
Region	Code of the region from the Philippine Standard Geographic Code (PSGC).	PH_Address
Religion	Extension to capture the religious affiliation of a person.	PH_Patient
Reporter Name	Name of the reporter of the encounter.	PH_Encounter
Result Date	The date on which the outcome of the particular specimen was recorded.	PH_Specimen
Sex	Extension to capture the sex at birth.	PH_Patient / PH_Person / PH_Practitioner
Species	Describes the type of species / organism.	PH_Specimen