Eka FHIR Resource Mappings
This document provides the FHIR (Fast Healthcare Interoperability Resources) mappings used by Eka Care for structured medical data. Each section details how Eka properties map to standard FHIR resources.Symptoms
FHIR Resource:Observation
Symptoms observed during patient consultations are stored using the FHIR Observation resource.
| Eka Property | FHIR Resource | FHIR Link | Decision to Use |
|---|---|---|---|
| symptoms.name, code | Observation.code | Manifestation or Symptom | SNOMED, Eka codes |
| symptoms.category | Observation.category | Observation Category | SNOMED: 418799008, MDB: s-8068301606 |
| symptoms.status | Observation.status | Observation Status | Voice2RX: preliminary, Rx: final |
| symptoms.since | Observation.effective | - | effectiveDateTime | effectivePeriod |
| symptom.notes | Observation.note | Annotation | String text |
| symptom.is-recorded-for | Observation.subject | - | Patient Reference |
| symptoms.severity | Observation.value | CodeableConcept | ValueCodeableConcept |
| symptoms.laterality | Observation.bodySite | Body Site | CodeableConcept.coding.code |
Conditions / Diagnoses
FHIR Resource:Condition
Medical conditions and diagnoses are stored using the FHIR Condition resource.
| Eka Property | FHIR Resource | FHIR Link | Decision to Use |
|---|---|---|---|
| condition.name, code | Condition.code | - | SNOMED |
| condition.current_status | Condition.clinicalStatus | Condition Clinical | Ruled-out: inactive, Confirmed: active, Suspected: unknown |
| condition.verification | Condition.verificationStatus | Verification Status | Ruled-out: refuted, Confirmed: confirmed, Suspected: unconfirmed |
| condition.severity | Condition.severity | Condition Severity | SNOMED: 24484000 (severe), 6736007 (moderate), 255604002 (mild) |
| condition.category | Condition.category | Condition Category | FHIR: encounter-diagnosis |
| condition.since | Condition.onset | - | datetime | period | age | string |
| condition.is-recorded-for | Condition.subject | - | Patient |
| condition.first-time-on | Condition.recordedDate | - | - |
| condition.evidence | Condition.evidence | - | Evidence pointing to condition |
| condition.where | Condition.bodyStructure | - | Has bodysite + other details |
| condition.stage | Condition.stage | - | e.g., cancer stages |
| condition.notes | Condition.note | - | Strings |
| condition.laterality | Condition.bodySite | Body Site | CodeableConcept.coding.code |
Medical History
FHIR Resource:Condition
Past medical history is also stored using the FHIR Condition resource with different category.
| Eka Property | FHIR Resource | FHIR Link | Decision to Use |
|---|---|---|---|
| condition.name, code | Condition.code | - | SNOMED |
| condition.current_status | Condition.clinicalStatus | Condition Clinical | Ruled-out: inactive, Confirmed: active, Suspected: unknown |
| condition.verification | Condition.verificationStatus | Verification Status | Ruled-out: refuted, Confirmed: confirmed, Suspected: unconfirmed |
| condition.severity | Condition.severity | Condition Severity | SNOMED codes for severity |
| condition.category | Condition.category | Condition Category | problem-list-item |
| condition.since | Condition.onset | - | datetime | period | age | string |
| condition.is-recorded-for | Condition.subject | - | Patient |
| condition.first-time-on | Condition.recordedDate | - | - |
| condition.stage | Condition.stage | - | e.g., cancer stages |
| condition.notes | Condition.note | - | Strings |
Advices
FHIR Resource:CarePlan
Doctor’s advice to patients is stored using the FHIR CarePlan resource.
| Eka Property | FHIR Resource | FHIR Link | Decision to Use |
|---|---|---|---|
| advice.status | CarePlan.status | - | active |
| advice.intent | CarePlan.intent | Care Plan Intent | plan |
| advice.category | CarePlan.category | - | Custom: SNOMED for advice |
| advice.for | CarePlan.subject | - | Patient |
| advice.details | CarePlan.activity.performedActivity | CodeableReference | CodeableReference.concept.text |
| advice.details | CarePlan.description | CarePlan Description | - |
Notes
FHIR Resource:CarePlan
Clinical notes are stored using the FHIR CarePlan resource with different intent.
| Eka Property | FHIR Resource | FHIR Link | Decision to Use |
|---|---|---|---|
| notes.status | CarePlan.status | - | active |
| notes.intent | CarePlan.intent | Care Plan Intent | proposal |
| notes.category | CarePlan.category | - | Custom: for notes |
| notes.for | CarePlan.subject | - | Patient |
| notes.details | CarePlan.description | CodeableReference | CodeableReference.concept.text |
Examinations
FHIR Resource:Observation
Physical examination findings are stored using the FHIR Observation resource.
| Eka Property | FHIR Resource | FHIR Link | Decision to Use |
|---|---|---|---|
| exam.name, code | Observation.code | Manifestation or Symptom | SNOMED, Eka codes |
| exam.category | Observation.category | Observation Category | exam |
| exam.status | Observation.status | Observation Status | preliminary | final | unknown |
| exam.since | Observation.effective | - | effectiveDateTime | effectivePeriod |
| exam.notes | Observation.note | Annotation | String |
| exam.is-recorded-for | Observation.subject | - | Patient |
| exam.location | Observation.bodySite | Body Site | - |
Follow-Up
FHIR Resource:Appointment
Follow-up appointments suggested by doctors are stored using the FHIR Appointment resource.
| Eka Property | FHIR Resource | FHIR Link | Decision to Use |
|---|---|---|---|
| followup.status | Appointment.status | Appointment Status | proposed |
| followup.type | Appointment.appointmentType | Appointment Type | FOLLOWUP |
| followup.created | Appointment.created | - | - |
| followup.start | Appointment.start | - | Instant |
Family History
FHIR Resource:FamilyMemberHistory
Family medical history is stored using the FHIR FamilyMemberHistory resource.
| Eka Property | FHIR Resource | FHIR Link | Decision to Use |
|---|---|---|---|
| dataentry.status | FamilyMemberHistory.status | History Status | completed |
| relation | FamilyMemberHistory.relationship | Family Member | - |
| relative.name | FamilyMemberHistory.name | - | String |
| remarks | FamilyMemberHistory.note | - | - |
| clinical.status | FamilyMemberHistory.condition.outcome | - | CodeableConcept.coding.code |
Vitals ( Trackers )
FHIR Resource:Observation
Patient vitals and health trackers are stored using the FHIR Observation resource.
| Eka Property | FHIR Resource | FHIR Link | Decision to Use |
|---|---|---|---|
| vitals.name, code | Observation.code | Manifestation or Symptom | SNOMED, Eka codes |
| vitals.category | Observation.category | Observation Category | SNOMED: s-8068301606, FHIR: vital-signs |
| vitals.status | Observation.status | Observation Status | Voice2RX: preliminary, Rx: final |
| vitals.since | Observation.effective | - | effectiveDateTime | effectivePeriod |
| vitals.notes | Observation.note | Annotation | String text |
| vitals.value | Observation.value | CodeableConcept | ValueCodeableConcept |
| vitals.components | Observation.component | - | For vitals like BP with multiple values |
Medications
FHIR Resource:MedicationRequest
Medication prescriptions are stored using the FHIR MedicationRequest resource.
| Eka Property | FHIR Resource | FHIR Link | Decision to Use |
|---|---|---|---|
| medication.name, medication.id | MedicationRequest.medicationCodeableConcept | Medication Codes | Name : Ibuprofen 200mg; code: MDB/SNOMED |
| medication.status | MedicationRequest.status | MedicationRequest Status | active |
| medication.intent | MedicationRequest.intent | MedicationRequest Intent | order |
| patient.id, patient.profile.personal.name | MedicationRequest.subject | Reference | Patient reference |
| doctor.id, doctor.profile.personal.name | MedicationRequest.requester | Reference | Practitioner reference |
| date | MedicationRequest.authoredOn | dateTime | ISO 8601 format |
| medication.instruction | MedicationRequest.dosageInstruction.text | Dosage | String |
| medication.dose.value, dose.unit, dose.id, dose.custom | MedicationRequest.dosageInstruction.doseAndRate.doseQuantity | Quantity | value, unit, code |
| medication.dose-rate-type | MedicationRequest.dosageInstruction.doseAndRate.type | Dose Rate Type | ordered |
| medication.frequency.id, frequency.value, frequency.custom | MedicationRequest.dosageInstruction.additionalInstruction | Additional Instruction | CodeableConcept |
| medication.frequency.frequency, frequency.period, frequency.period_unit, duration, duration-unit, when | MedicationRequest.dosageInstruction.timing.repeat | Timing | frequency, period, periodUnit |
| calculated | MedicationRequest.dispenseRequest.quantity | Quantity | frequency × duration × dose |
Lab Tests / Imaging / Surgical Procedures
FHIR Resource:ServiceRequest
Lab tests, imaging requests ( radiology) and surgical procedure are stored using the FHIR ServiceRequest resource.
| Eka Property | FHIR Resource | FHIR Link | Decision to Use |
|---|---|---|---|
| status | ServiceRequest.status | Request Status | active |
| intent | ServiceRequest.intent | Request Intent | order |
| category | ServiceRequest.category | Service Request Category | Supported categories are imaging, lab_test, surgical_procedure |
| labTests.id, labTests.name | ServiceRequest.code | Procedure Codes | CodeableConcept from http://eka.care/mdb, http://loinc.org, https://parchi.eka.care/local |
| patient_oid, patient_name | ServiceRequest.subject | Reference | Reference to Patient resource |
| visitid | ServiceRequest.encounter | Reference | Reference to Encounter resource |
| doctor_oid, doctor_name | ServiceRequest.requester | Reference | Reference to Practitioner resource |
| date | ServiceRequest.authoredOn | dateTime | ISO 8601 format |
| remark/notes | ServiceRequest.note | Annotation | Text note |
DrugAllergy / FoodAllergy Intolerance
FHIR Resource:AllergyIntolerance
Food and medication allergies are stored using the FHIR AllergyIntolerance resource.
| Eka Property | FHIR Resource | FHIR Link | Decision to Use |
|---|---|---|---|
| doctor_oid, doctor_name | AllergyIntolerance.asserter | Reference | Reference to Practitioner resource |
| category | AllergyIntolerance.category | Allergy Category | food or medication |
| clinicalStatus | AllergyIntolerance.clinicalStatus | Clinical Status | code: active, display: Active |
| drugAllergy.id, foodOtherAllergy.id | AllergyIntolerance.code | Allergy Codes | CodeableConcept from http://snomed.info/sct, http://eka.care/mdb, https://parchi.eka.care/local |
| criticality | AllergyIntolerance.criticality | Allergy Criticality | high |
| notes | AllergyIntolerance.note | Annotation | Text note |
| patient_oid, patient_name | AllergyIntolerance.patient | Reference | Reference to Patient resource |
| type | AllergyIntolerance.type | Allergy Type | allergy |
| recordedDate | AllergyIntolerance.recordedDate | dateTime | ISO 8601 format (current time) |
| verificationStatus | AllergyIntolerance.verificationStatus | Verification Status | code: confirmed, display: Confirmed |
Summary Table
| Data Type | FHIR Resource | Category/Type |
|---|---|---|
| Symptoms | Observation | signs-and-symptoms |
| Conditions/Diagnoses | Condition | encounter-diagnosis |
| Medical History | Condition | problem-list-item |
| Advices | CarePlan | intent: plan |
| Notes | CarePlan | intent: proposal |
| Examinations | Observation | exam |
| Follow-Up | Appointment | FOLLOWUP |
| Family History | FamilyMemberHistory | - |
| Vitals | Observation | vital-signs |
| Medications | MedicationRequest | intent: order |
| Lab Tests/Imaging/Surgical Procedures | ServiceRequest | imaging/lab_test/surgical_procedure |
| Food and drug Allergies | AllergyIntolerance | food/medication |