Update etasu for medication reference

src/components/EtasuStatus/EtasuStatus.jsx

@@ -2,7 +2,7 @@ import { useState, useEffect, useContext } from 'react';
 import { SettingsContext } from '../../containers/ContextProvider/SettingsProvider.jsx';
 import { EtasuStatusComponent } from './EtasuStatusComponent.jsx';
 import { standardsBasedGetEtasu } from '../../util/util.js';
-import { createMedicationFromMedicationRequest } from '../../util/fhir.js';
+import { createMedicationFromMedicationRequest, getDrugCodeableConceptFromMedicationRequest } from '../../util/fhir.js';
 
 // converts code into etasu for the component to render
 // simplifies usage for applications that only know the code, not the case they want to display
@@ -22,7 +22,7 @@ export const EtasuStatus = props => {
   const getEtasuStatus = (medication) => {
     const body = makeBody(medication);
     setEtasuData(body);
-    const display = body.parameter[1]?.resource.code.coding[0].display;
+    const display = body.parameter[1]?.resource.code?.coding[0].display;
     setDisplay(display);
     const standardEtasuUrl = `${globalState.remsAdminServer}/4_0_0/GuidanceResponse/$rems-etasu`;
     standardsBasedGetEtasu(standardEtasuUrl, body, setRemsAdminResponse);

src/containers/RequestBuilder.jsx

@@ -122,7 +122,6 @@ const RequestBuilder = props => {
     let remsAdminUrls = [];
     // get all the remsAdminUrl for each MedicationRequest
     state.medicationRequests?.data?.forEach(request => {
-      const code = request?.medicationCodeableConcept?.coding[0]?.code;
       const remsAdminUrl = getMedicationSpecificRemsAdminUrl(request, globalState, hook);
       if (remsAdminUrl) {
         remsAdminUrls.push(remsAdminUrl);

src/util/fhir.js

@@ -68,6 +68,17 @@ function createMedicationFromMedicationRequest(medicationRequest) {
   medication.id = medicationRequest?.id + '-med';
   if (medicationRequest.medicationCodeableConcept) {
     medication.code = medicationRequest.medicationCodeableConcept;
+  }  else if (medicationRequest.medicationReference) {
+    const reference = medicationRequest?.medicationReference;
+    medication.code = undefined;
+    medicationRequest?.contained?.every(e => {
+      if (e.resourceType + '/' + e.id === reference.reference) {
+        if (e.resourceType === 'Medication') {
+          console.log('Get Medication code from contained resource');
+          medication.code = e.code;
+        }
+      }
+    });
   }
   return medication;
 }

src/util/util.js

@@ -1,5 +1,7 @@
 import axios from 'axios';
+import { getDrugCodeableConceptFromMedicationRequest } from './fhir';
 import { ORDER_SIGN, ORDER_SELECT, PATIENT_VIEW, ENCOUNTER_START } from './data';
+
 /**
  * Retrieves a SMART launch context from an endpoint to append as a "launch" query parameter to a SMART app launch URL (see SMART docs for more about launch context).
  * This applies mainly if a SMART app link on a card is to be launched. The link needs a "launch" query param with some opaque value from the SMART server entity.
@@ -96,8 +98,10 @@ const getMedicationSpecificRemsAdminUrl = (request, globalState, hook) => {
   if (Object.keys(request).length === 0) {
     return undefined;
   }
-  const display = request.medicationCodeableConcept?.coding?.[0]?.display;
-  const rxnorm = request.medicationCodeableConcept?.coding?.[0]?.code;
+
+  const codeableConcept = getDrugCodeableConceptFromMedicationRequest(request);
+  const display = codeableConcept?.coding?.[0]?.display;
+  const rxnorm = codeableConcept?.coding?.[0]?.code;
 
   if (!rxnorm) {
     console.log("ERROR: unknown MedicationRequest code: '", rxnorm);