<status value="active" /> <experimental value="false" /> <date value="2026-04-17" /> <publisher value="gematik GmbH" /> <description value="Matrix-ID (MXID) für TI-Messenger im Versichertenstammdatenmanagement (VSDM) 2.0" /> <fhirVersion value="4.0.1" /> <kind value="complex-type" /> <abstract value="false" /> <type value="ContactPoint" /> <baseDefinition value="http://hl7.org/fhir/StructureDefinition/ContactPoint" /> <derivation value="constraint" /> <differential> <element id="ContactPoint"> <path value="ContactPoint" /> <short value="TI-Messenger-ID" /> <definition value="Matrix-ID (MXID) für TI-Messenger im Versichertenstammdatenmanagement (VSDM) 2.0." /> </element> <element id="ContactPoint.system"> <path value="ContactPoint.system" /> <fixedCode value="url" /> </element> <element id="ContactPoint.value"> <path value="ContactPoint.value" /> <min value="1" /> <constraint> <key value="VSDMContactPointTIM-mxid-1" /> <severity value="error" /> <human value="Die TI-Messenger-ID muss eine [gültige MXID](https://spec.matrix.org/latest/appendices/#user-identifiers) sein." /> <expression value="matches('matrix:@[a-z0-9\\-\\._=\/\\+]{1,}:[a-zA-Z0-9\\-\\.]{1,255}(:[0-9+]{1,5})?') and length() <= 262" /> <source value="https://gematik.de/fhir/vsdm2/StructureDefinition/VSDMContactPointTIM" /> </constraint> <mustSupport value="true" /> </element> </differential> </StructureDefinition>