# Extensions - NHDR Implementation Guide Release 1.0 v0.1.0

* [**Table of Contents**](toc.md)
* **Extensions**

## 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:

-------

| | | |
| :--- | :--- | :--- |
| [Address (extension)](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-ExtAddress.html) | Address where the observation was made. | [PH Observation](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PH-Observation.html) |
| [Age Days](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-AgeDays.html) | Age of the subject in days. | [PH Encounter](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PH-Encounter.html) |
| [Age Months](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-AgeMonths.html) | Age of the subject in months. | [PH Encounter](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PH-Encounter.html) |
| [Age Years](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-AgeYears.html) | Age of the subject in years. | [PH Encounter](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PH-Encounter.html) |
| [Barangay](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-Barangay.html) | Code of the barangay from the Philippine Standard Geographic Code (PSGC) | [PH Address](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PH-Address.html) |
| [CityMunicipality](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-CityMunicipality.html) | Code of the city/municipality from the Philippine Standard Geographic Code (PSGC) | [PH Address](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PH-Address.html) |
| [Date Interview](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-DateInterview.html) | Date of interview. | [PH Encounter](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PH-Encounter.html) |
| [Date Investigation](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-DateInvestigation.html) | Date of investigation. | [PH Encounter](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PH-Encounter.html) |
| [Date Released](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-DateReleased.html) | Date when the specimen was released. | [PH Specimen](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PH-Specimen.html) |
| [Educational Attainment](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-EducationalAttainment.html) | Highest educational attainment of the patient. | [PH Patient](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PH-Patient.html) |
| [Encounter (Extension)](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-EncounterExtension.html) | Captures healthcare encounters. | [PH Claim](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PH-Claim.html)/[PH MedicationAdministration](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PH-MedicationAdministration.html)/[PH MedicationStatement](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PH-MedicationStatement.html) |
| [HF Last Updated](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-HFLastUpdated.html) | The date indicating when the record was last updated by the health facility. | [PH MedicationAdministration](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PH-MedicationAdministration.html)/[PH Observation](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PH-Observation.html)/[PH Patient](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PH-Patient.html)/[PH Procedure](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PH-Procedure.html)/[PH Specimen](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PH-Specimen.html) |
| [HF Recorded Date](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-HFRecordedDate.html) | The recorded date indicating when the record was uploaded by the health facility. | [PH MedicationAdministration](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PH-MedicationAdministration.html)/[PH Observation](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PH-Observation.html)/[PH Patient](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PH-Patient.html)/[PH Procedure](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PH-Procedure.html)/[PH Specimen](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PH-Specimen.html) |
| [Indigenous Group](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-IndigenousGroup.html) | Indigenous group that the patient belongs to. | [PH Patient](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PH-Patient.html) |
| [Indigenous People](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-IndigenousPeople.html) | If the patient is a member of an indigenous group. | [PH Patient](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PH-Patient.html) |
| [Interviewer](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-Interviewer.html) | Name of the interviewer at first point of contact. | [PH Encounter](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PH-Encounter.html) |
| [Investigator Name](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-InvestigatorName.html) | Name of the investigator/assessor. | [PH Encounter](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PH-Encounter.html) |
| [Marital Status](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-MaritalStatus.html) | Civil Status | [PH Practitioner](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PH-Practitioner.html)/[PH Person](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PH-Person.html)/[PH RelatedPerson](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PH-RelatedPerson.html) |
| [Medication Type](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-MedicationType.html) | Medication Type. | [PH Medication](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PH-Medication.html) |
| [Member Type](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-MemberType.html) | Membership Type | [PH Patient](https://build.fhir.org/ig/UP-Manila-SILab/Philhealth-NHDR-IG-Review/StructureDefinition-PH-Patient.html) |
| [Nationality](http://hl7.org/fhir/StructureDefinition/patient-nationality) | The nationality of the person. | [PH Patient](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PH-Patient.html) |
| [Occupation](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-Occupation.html) | Patient's occupation. | [PH Patient](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PH-Patient.html)/[PH RelatedPerson](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PH-RelatedPerson.html) |
| [Packaging](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-Packaging.html) | Detailed description on the medication packaging. | [PH Medication](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PH-Medication.html) |
| [Patient Classification](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PatientClassification.html) | Classification of patient. | [PH Encounter](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PH-Encounter.html) |
| [Patient Type](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PatientType.html) | Patient Type | [PH Patient](https://build.fhir.org/ig/UP-Manila-SILab/Philhealth-NHDR-IG-Review/StructureDefinition-PH-Patient.html) |
| [Province](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-Province.html) | Code of the province from the Philippine Standard Geographic Code (PSGC). | [PH Address](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PH-Address.html) |
| [Race](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-Race) | Captures the race of the patient. | [PH Patient](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PH-Patient.html) |
| [Region](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-Region.html) | Code of the region from the Philippine Standard Geographic Code (PSGC). | [PH Address](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PH-Address.html) |
| [Religion](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-Religion.html) | Captures the religious affiliation of a person. | [PH Patient](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PH-Patient.html) |
| [Reporter Name](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-ReporterName.html) | Name of the reporter of the encounter. | [PH Encounter](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PH-Encounter.html) |
| [Result Date](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-ResultDate.html) | The date on which the outcome of the particular specimen was recorded. | [PH Specimen](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PH-Specimen.html) |
| [Sex](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-Sex.html) | Captures a person's the sex at birth. | [PH Patient](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PH-Patient.html)/[PH Person](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PH-Person.html)/[PH Practitioner](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PH-Practitioner.html)/[PH RelatedPerson](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PH-RelatedPerson.html) |
| [Species](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-Species.html) | Describes the type of species / organism. | [PH Specimen](https://build.fhir.org/ig/UP-Manila-SILab/PhilHealth-NHDR-IG-Review/StructureDefinition-PH-Specimen.html) |

