Implementation Guide
ePA Medication Service
Version 1.3.2 - release

## : Medication Plan Chronology Log - JSON Representation

Active as of 2026-03-20

Raw json | Download

    {
      "resourceType" : "OperationDefinition",
      "id" : "medication-plan-log-op",
      "meta" : {
        "profile" : [
          🔗 "https://gematik.de/fhir/ti/StructureDefinition/ti-operationdefinition"
        ]
      },
      "text" : {
        "status" : "generated",
        "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p class=\"res-header-id\"><b>Generated Narrative: OperationDefinition medication-plan-log-op</b></p><a name=\"medication-plan-log-op\"> </a><a name=\"hcmedication-plan-log-op\"> </a><div style=\"display: inline-block; background-color: #d9e0e7; padding: 6px; margin: 4px; border: 1px solid #8da1b4; border-radius: 5px; line-height: 60%\"><p style=\"margin-bottom: 0px\"/><p style=\"margin-bottom: 0px\">Profile: <a href=\"https://simplifier.net/resolve?scope=de.gematik.ti@1.3.1&amp;canonical=https://gematik.de/fhir/ti/StructureDefinition/ti-operationdefinition\">OperationDefinition Profil für TI FHIR Data Service</a></p></div><p>URL: [base]/$medication-plan-log</p><h3>Parameters</h3><table class=\"grid\"><tr><td><b>Use</b></td><td><b>Name</b></td><td><b>Scope</b></td><td><b>Cardinality</b></td><td><b>Type</b></td><td><b>Binding</b></td><td><b>Documentation</b></td></tr><tr><td>IN</td><td>_count</td><td/><td>0..1</td><td><a href=\"http://hl7.org/fhir/R4/datatypes.html#integer\">integer</a></td><td/><td><div><p>Limit the result bundle to this many entries. To get more entries request the next page.</p>\n</div></td></tr><tr><td>IN</td><td>_offset</td><td/><td>0..1</td><td><a href=\"http://hl7.org/fhir/R4/datatypes.html#integer\">integer</a></td><td/><td><div><p>Defines the offset of the first entry in the collection.</p>\n</div></td></tr><tr><td>OUT</td><td>return</td><td/><td>1..1</td><td><a href=\"http://hl7.org/fhir/R4/bundle.html\">Bundle</a></td><td/><td><div><p>Searchset bundle containing the requested entities.</p>\n</div></td></tr></table></div>"
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      "url" : "https://gematik.de/fhir/epa-medication/OperationDefinition/medication-plan-log-op",
      "version" : "1.3.2",
      "name" : "getMedicationPlanChronologyLog_MedicationSvc",
      "title" : "Medication Plan Chronology Log",
      "status" : "active",
      "kind" : "operation",
      "date" : "2026-03-20",
      "publisher" : "gematik GmbH",
      "contact" : [
        {
          "name" : "gematik GmbH",
          "telecom" : [
            {
              "system" : "url",
              "value" : "https://www.gematik.de"
            },
            {
              "system" : "email",
              "value" : "patientteam [ at ] gematik.de"
            }
          ]
        }
      ],
      "description" : "Diese Operation liefert die chronologische Historie aller gespeicherten Versionen des elektronischen Medikationsplans (eMP) in Form von Provenance-Ressourcen. Jede Provenance-Instanz beschreibt dabei einen dokumentierten Zustand des eMP zu einem bestimmten Zeitpunkt. Die Operation ermöglicht es, gezielt die Versionshistorie des Medikationsplans abzufragen - etwa um Änderungen nachzuvollziehen oder frühere Zustände einzusehen.",
      "jurisdiction" : [
        {
          "coding" : [
            {
              "system" : "urn:iso:std:iso:3166",
              "code" : "DE"
            }
          ]
        }
      ],
      "affectsState" : false,
      "code" : "medication-plan-log",
      "system" : true,
      "type" : false,
      "instance" : false,
      "parameter" : [
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          "type" : "integer"
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