This code system https://fhir.ehealth-systems.at/kiola/device/kmc defines the following codes in a Is-A hierarchy:

LvlCodeDisplay
1app_package App package that handles the data transmission from the device
2  at.ac.ait.his.smwt 6-Minute-Walk-Test App
2  at.ac.ait.healthebikes AIT Ebike App
2  at.ac.ait.emotioncardio AIT Emotioncardio App
1ui_reference Reference to a tile on the KMC dashboard
2  q_questionnaire:{representation=MultiPageTopicQuestionnaire} Generic Questionnaire
2  q_medication_intake:{representation=MultiPageTopicQuestionnaire} Questionnaire medication intake
2  q_symptoms:{representation=MultiPageTopicQuestionnaire} Symptom questionnaire
2  glucose_suppl:{representation=SinglePageQuestionnaire} Blood glucose supplemental data questionnaire
2  physician_visit:{representation=SinglePageQuestionnaire} Physician Visit Questionnaire
2  ergo Ergo
2  ebike Ebike
1blocked_device_type KMC Blocked Device
1device_multi_measurement KMC Device Multi Measurement
 <status value="active"/> <date value="2024-04-27T13:32:49+00:00"/> <contact> <name value="AIT Austrian Institute of Technology"/> <telecom> <system value="email"/> <value value="mailto:office@ait.ac.at"/> </telecom> </contact> <description value="Various codes that might be used to configure a mobile client."/> <hierarchyMeaning value="is-a"/> <content value="complete"/> <count value="14"/> <concept> <code value="app_package"/> <display value="App package that handles the data transmission from the device"/> <concept> <code value="at.ac.ait.his.smwt"/> <display value="6-Minute-Walk-Test App"/> </concept> <concept> <code value="at.ac.ait.healthebikes"/> <display value="AIT Ebike App"/> </concept> <concept> <code value="at.ac.ait.emotioncardio"/> <display value="AIT Emotioncardio App"/> </concept> </concept> <concept> <code value="ui_reference"/> <display value="Reference to a tile on the KMC dashboard"/> <concept> <code value="q_questionnaire:{representation=MultiPageTopicQuestionnaire}"/> <display value="Generic Questionnaire"/> </concept> <concept> <code value="q_medication_intake:{representation=MultiPageTopicQuestionnaire}"/> <display value="Questionnaire medication intake"/> </concept> <concept> <code value="q_symptoms:{representation=MultiPageTopicQuestionnaire}"/> <display value="Symptom questionnaire"/> </concept> <concept> <code value="glucose_suppl:{representation=SinglePageQuestionnaire}"/> <display value="Blood glucose supplemental data questionnaire"/> </concept> <concept> <code value="physician_visit:{representation=SinglePageQuestionnaire}"/> <display value="Physician Visit Questionnaire"/> </concept> <concept> <code value="ergo"/> <display value="Ergo"/> </concept> <concept> <code value="ebike"/> <display value="Ebike"/> </concept> </concept> <concept> <code value="blocked_device_type"/> <display value="KMC Blocked Device"/> </concept> <concept> <code value="device_multi_measurement"/> <display value="KMC Device Multi Measurement"/> </concept> </CodeSystem>