Kenya ePrescription Implementation Guide
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Kenya ePrescription Implementation Guide, published by Digital Health Agency (DHA), Kenya. 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/IntelliSOFT-Consulting/Kenya-ePrescription-IG/ and changes regularly. See the Directory of published versions

: MedicationRequest – Extensions: Digital Signature, Refill, Controlled Substance, Insurance Auth - TTL Representation

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@prefix fhir: <http://hl7.org/fhir/> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

# - resource -------------------------------------------------------------------

<http://hl7.org/fhir/MedicationRequest/example-medicationrequest-with-extensions> a fhir:MedicationRequest ;
  fhir:nodeRole fhir:treeRoot ;
  fhir:Resource.id [ fhir:value "example-medicationrequest-with-extensions"] ;
  fhir:Resource.meta [
     fhir:Meta.profile [
       fhir:value "https://fhir.dha.go.ke/erx/StructureDefinition/ke-medication-request" ;
       fhir:index 0 ;
       fhir:link <https://fhir.dha.go.ke/erx/StructureDefinition/ke-medication-request>
     ], [
       fhir:value "https://fhir.dha.go.ke/fhir/StructureDefinition/ke-medication-request" ;
       fhir:index 1 ;
       fhir:link <https://fhir.dha.go.ke/fhir/StructureDefinition/ke-medication-request>
     ]
  ] ;
  fhir:DomainResource.text [
     fhir:Narrative.status [ fhir:value "generated" ] ;
     fhir:Narrative.div "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p><b>Prescription RX-2025-EXT-00001 – Extension Demonstration</b></p><p>Metformin 500 mg twice daily for James Otieno, prescribed by Dr. Sarah Njoroge. Demonstrates: digital signature, refill authorization (3 refills), controlled substance schedule (not controlled), and SHA insurance pre-authorization SHA-2025-AUTH-001234 valid 15 Jun–15 Sep 2025.</p></div>"
  ] ;
  fhir:DomainResource.extension [
     fhir:index 0 ;
     fhir:Element.extension [
       fhir:index 0 ;
       fhir:Extension.url [ fhir:value "signatureType" ] ;
       fhir:Extension.valueCoding [
         fhir:Coding.system [ fhir:value "urn:iso-astm:E1762-95:2013" ] ;
         fhir:Coding.code [ fhir:value "1.2.840.10065.1.12.1.1" ] ;
         fhir:Coding.display [ fhir:value "Author's Signature" ]
       ]
     ], [
       fhir:index 1 ;
       fhir:Extension.url [ fhir:value "signatureValue" ] ;
       fhir:Extension.valueBase64Binary [ fhir:value "U0lHTkFUVVJFX1BMQUNFSE9MREVS"^^xsd:base64Binary ]
     ], [
       fhir:index 2 ;
       fhir:Extension.url [ fhir:value "signedBy" ] ;
       fhir:Extension.valueReference [
         fhir:link <http://hl7.org/fhir/Practitioner/example-practitioner-njoroge> ;
         fhir:Reference.reference [ fhir:value "Practitioner/example-practitioner-njoroge" ]
       ]
     ], [
       fhir:index 3 ;
       fhir:Extension.url [ fhir:value "signedOn" ] ;
       fhir:Extension.valueInstant [ fhir:value "2025-06-15T09:30:00+03:00"^^xsd:dateTime ]
     ] ;
     fhir:Extension.url [ fhir:value "https://fhir.dha.go.ke/fhir/StructureDefinition/prescription-digital-signature" ]
  ], [
     fhir:index 1 ;
     fhir:Element.extension [
       fhir:index 0 ;
       fhir:Extension.url [ fhir:value "authorizedRefills" ] ;
       fhir:Extension.valueUnsignedInt [ fhir:value "3"^^xsd:nonNegativeInteger ]
     ], [
       fhir:index 1 ;
       fhir:Extension.url [ fhir:value "remainingRefills" ] ;
       fhir:Extension.valueUnsignedInt [ fhir:value "3"^^xsd:nonNegativeInteger ]
     ], [
       fhir:index 2 ;
       fhir:Extension.url [ fhir:value "earliestRefillDate" ] ;
       fhir:Extension.valueDate [ fhir:value "2025-07-15"^^xsd:date ]
     ] ;
     fhir:Extension.url [ fhir:value "https://fhir.dha.go.ke/fhir/StructureDefinition/refill-authorization" ]
  ], [
     fhir:index 2 ;
     fhir:Element.extension [
       fhir:index 0 ;
       fhir:Extension.url [ fhir:value "isControlled" ] ;
       fhir:Extension.valueBoolean [ fhir:value "false"^^xsd:boolean ]
     ] ;
     fhir:Extension.url [ fhir:value "https://fhir.dha.go.ke/fhir/StructureDefinition/controlled-substance-schedule" ]
  ], [
     fhir:index 3 ;
     fhir:Element.extension [
       fhir:index 0 ;
       fhir:Extension.url [ fhir:value "authorizationNumber" ] ;
       fhir:Extension.valueString [ fhir:value "SHA-2025-AUTH-001234" ]
     ], [
       fhir:index 1 ;
       fhir:Extension.url [ fhir:value "insurerName" ] ;
       fhir:Extension.valueString [ fhir:value "Social Health Authority (SHA)" ]
     ], [
       fhir:index 2 ;
       fhir:Extension.url [ fhir:value "validFrom" ] ;
       fhir:Extension.valueDate [ fhir:value "2025-06-15"^^xsd:date ]
     ], [
       fhir:index 3 ;
       fhir:Extension.url [ fhir:value "validTo" ] ;
       fhir:Extension.valueDate [ fhir:value "2025-09-15"^^xsd:date ]
     ] ;
     fhir:Extension.url [ fhir:value "https://fhir.dha.go.ke/fhir/StructureDefinition/insurance-pre-authorization" ]
  ] ;
  fhir:MedicationRequest.identifier [
     fhir:index 0 ;
     fhir:Identifier.system [ fhir:value "https://ilm-hie.dha.go.ke/fhir/NamingSystem/prescription-identifier" ] ;
     fhir:Identifier.value [ fhir:value "RX-2025-EXT-00001" ]
  ] ;
  fhir:MedicationRequest.status [ fhir:value "active"] ;
  fhir:MedicationRequest.intent [ fhir:value "order"] ;
  fhir:MedicationRequest.category [
     fhir:index 0 ;
     fhir:CodeableConcept.coding [
       fhir:index 0 ;
       fhir:Coding.system [ fhir:value "http://terminology.hl7.org/CodeSystem/medicationrequest-category" ] ;
       fhir:Coding.code [ fhir:value "outpatient" ] ;
       fhir:Coding.display [ fhir:value "Outpatient" ]
     ]
  ] ;
  fhir:MedicationRequest.medicationCodeableConcept [
     fhir:CodeableConcept.coding [
       fhir:index 0 ;
       fhir:Coding.system [ fhir:value "https://fhir.dha.go.ke/fhir/CodeSystem/generic-products-cs" ] ;
       fhir:Coding.code [ fhir:value "GE10002" ] ;
       fhir:Coding.display [ fhir:value "Metformin 500 mg Oral Tablet" ]
     ]
  ] ;
  fhir:MedicationRequest.subject [
     fhir:link <http://hl7.org/fhir/Patient/example-patient-otieno> ;
     fhir:Reference.reference [ fhir:value "Patient/example-patient-otieno" ]
  ] ;
  fhir:MedicationRequest.authoredOn [ fhir:value "2025-06-15"^^xsd:date] ;
  fhir:MedicationRequest.requester [
     fhir:link <http://hl7.org/fhir/Practitioner/example-practitioner-njoroge> ;
     fhir:Reference.reference [ fhir:value "Practitioner/example-practitioner-njoroge" ]
  ] ;
  fhir:MedicationRequest.dosageInstruction [
     fhir:index 0 ;
     fhir:Dosage.text [ fhir:value "Take 1 tablet (500 mg) by mouth twice daily with meals" ] ;
     fhir:Dosage.timing [
       fhir:Timing.repeat [
         fhir:Timing.repeat.frequency [ fhir:value "2"^^xsd:positiveInteger ] ;
         fhir:Timing.repeat.period [ fhir:value "1"^^xsd:decimal ] ;
         fhir:Timing.repeat.periodUnit [ fhir:value "d" ]
       ]
     ] ;
     fhir:Dosage.route [
       fhir:CodeableConcept.coding [
         fhir:index 0 ;
         fhir:Coding.system [ fhir:value "https://fhir.dha.go.ke/fhir/CodeSystem/route-of-administration-cs" ] ;
         fhir:Coding.code [ fhir:value "RT10025" ] ;
         fhir:Coding.display [ fhir:value "Oral" ]
       ]
     ] ;
     fhir:Dosage.doseAndRate [
       fhir:index 0 ;
       fhir:Dosage.doseAndRate.doseQuantity [
         fhir:Quantity.value [ fhir:value "500"^^xsd:decimal ] ;
         fhir:Quantity.unit [ fhir:value "mg" ] ;
         fhir:Quantity.system [ fhir:value "http://unitsofmeasure.org" ] ;
         fhir:Quantity.code [ fhir:value "mg" ]
       ]
     ]
  ] ;
  fhir:MedicationRequest.dispenseRequest [
     fhir:MedicationRequest.dispenseRequest.numberOfRepeatsAllowed [ fhir:value "3"^^xsd:nonNegativeInteger ] ;
     fhir:MedicationRequest.dispenseRequest.quantity [
       fhir:Quantity.value [ fhir:value "60"^^xsd:decimal ] ;
       fhir:Quantity.unit [ fhir:value "tablet" ] ;
       fhir:Quantity.system [ fhir:value "http://unitsofmeasure.org" ] ;
       fhir:Quantity.code [ fhir:value "1" ]
     ]
  ] ;
  fhir:MedicationRequest.substitution [
     fhir:MedicationRequest.substitution.allowedCodeableConcept [
       fhir:CodeableConcept.coding [
         fhir:index 0 ;
         fhir:Coding.system [ fhir:value "http://terminology.hl7.org/CodeSystem/v3-substanceAdminSubstitution" ] ;
         fhir:Coding.code [ fhir:value "G" ] ;
         fhir:Coding.display [ fhir:value "equivalent generic composition" ]
       ]
     ]
  ] .

<http://hl7.org/fhir/Practitioner/example-practitioner-njoroge> a fhir:Practitioner .

<http://hl7.org/fhir/Patient/example-patient-otieno> a fhir:Patient .

# - ontology header ------------------------------------------------------------

<http://hl7.org/fhir/MedicationRequest/example-medicationrequest-with-extensions.ttl> a owl:Ontology ;
  owl:imports fhir:fhir.ttl ;
  owl:versionIRI <http://build.fhir.org/MedicationRequest/example-medicationrequest-with-extensions.ttl> .