{
  "resourceType": "StructureDefinition",
  "id": "medicationdispense-validityPeriod",
  "url": "http://hl7.org/fhir/StructureDefinition/medicationdispense-validityPeriod",
  "name": "Time interval for medication administration",
  "display": "validityPeriod",
  "status": "draft",
  "publisher": "Health Level Seven, Inc. - FHIR WG",
  "contact": [
    {
      "telecom": [
        {
          "system": "other",
          "value": "HL7"
        }
      ]
    }
  ],
  "date": "2015-02-17",
  "description": "The time interval when the medication must be administered. The start and end times must be expressed as dateTimes, not times relative to the dispensing time (e.g. use within 24 hours).",
  "fhirVersion": "1.0.2",
  "kind": "datatype",
  "constrainedType": "Extension",
  "abstract": false,
  "contextType": "resource",
  "context": [
    "MedicationDispense"
  ],
  "base": "http://hl7.org/fhir/StructureDefinition/Extension",
  "snapshot": {
    "element": [
      {
        "path": "Extension",
        "short": "Time interval for medication administration",
        "definition": "The time interval when the medication must be administered. The start and end times must be expressed as dateTimes, not times relative to the dispensing time (e.g. use within 24 hours).",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "Extension"
          }
        ]
      },
      {
        "path": "Extension.id",
        "representation": [
          "xmlAttr"
        ],
        "short": "xml:id (or equivalent in JSON)",
        "definition": "unique id for the element within a resource (for internal references).",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.id",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "id"
          }
        ],
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          }
        ]
      },
      {
        "path": "Extension.extension",
        "name": "extension",
        "short": "Extension",
        "definition": "An Extension",
        "min": 0,
        "max": "0",
        "base": {
          "path": "Extension.extension",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "Extension"
          }
        ]
      },
      {
        "path": "Extension.url",
        "representation": [
          "xmlAttr"
        ],
        "short": "identifies the meaning of the extension",
        "definition": "Source of the definition for the extension code - a logical name or a URL.",
        "comments": "The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition should be version specific.  This will ideally be the URI for the Resource Profile defining the extension, with the code for the extension after a #.",
        "min": 1,
        "max": "1",
        "base": {
          "path": "Extension.url",
          "min": 1,
          "max": "1"
        },
        "type": [
          {
            "code": "uri"
          }
        ],
        "fixedUri": "http://hl7.org/fhir/StructureDefinition/medicationdispense-validityPeriod",
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "path": "Extension.valuePeriod",
        "short": "Value of extension",
        "definition": "Value of extension - may be a resource or one of a constrained set of the data types (see Extensibility in the spec for list).",
        "min": 1,
        "max": "1",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "Period"
          }
        ],
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      }
    ]
  },
  "differential": {
    "element": [
      {
        "path": "Extension",
        "short": "Time interval for medication administration",
        "definition": "The time interval when the medication must be administered. The start and end times must be expressed as dateTimes, not times relative to the dispensing time (e.g. use within 24 hours).",
        "min": 0,
        "max": "1",
        "type": [
          {
            "code": "Extension"
          }
        ]
      },
      {
        "path": "Extension.extension",
        "name": "extension",
        "max": "0"
      },
      {
        "path": "Extension.url",
        "type": [
          {
            "code": "uri"
          }
        ],
        "fixedUri": "http://hl7.org/fhir/StructureDefinition/medicationdispense-validityPeriod"
      },
      {
        "path": "Extension.value[x]",
        "min": 1,
        "type": [
          {
            "code": "Period"
          }
        ]
      }
    ]
  }
}