{
  "resourceType": "StructureDefinition",
  "id": "Timing",
  "url": "http://StructureDefinition.hl7fhir.cn/Timing",
  "name": "Timing",
  "title": "定时",
  "status": "draft",
  "fhirVersion": "4.0.0",
  "mapping": [
    {
      "identity": "v2",
      "uri": "http://hl7.org/v2",
      "name": "HL7 v2 Mapping"
    },
    {
      "identity": "rim",
      "uri": "http://hl7.org/v3",
      "name": "RIM Mapping"
    }
  ],
  "kind": "complex-type",
  "abstract": false,
  "type": "Timing",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Timing",
  "derivation": "constraint",
  "snapshot": {
    "element": [
      {
        "id": "Timing",
        "path": "Timing",
        "short": "定时数据类型用于为可能多次发生的事件设置定时计划",
        "definition": "为可能多次发生的事件设置定时计划。定时数据类型用来记录那些计划、预期或申请发生的事件。常用于药物剂量类型（Dosage）的用法时间元素、照护计划资源（CarePlan）的日程元素。也可用于报告过去定期活动的时间表。",
        "comment": "定时数据类型用于指定事件预期或申请发生的时间，它的“事件”元素（Timing.event)定义为“未来”事件，但也可用于描述历史或正在发生的事件。 也可用于表示过去或正在进行的事件的摘要。为简单起见，计时组件的。\r\n\r\n定时数据类型支持以列表形式指定多个事件发生的时间，也支持指定的事件发生的条件。 其表现方式可以用结构化元素，也可以用编码表示。 当同时指定“事件”元素（Timing.event)和“重复”元素（Timing.repeat)，应将“事件”元素理解为对“重复”元素中的信息的解释。",
        "min": 0,
        "max": "*",
        "base": {
          "path": "Timing",
          "min": 0,
          "max": "*"
        },
        "condition": [
          "ele-1"
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "xpath": "@value|f:*|h:div",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          }
        ],
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          },
          {
            "identity": "v2",
            "map": "N/A"
          },
          {
            "identity": "rim",
            "map": "QSET<TS> (GTS)"
          }
        ]
      },
      {
        "id": "Timing.id",
        "path": "Timing.id",
        "representation": [
          "xmlAttr"
        ],
        "short": "Unique id for inter-element referencing",
        "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Element.id",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "extension": [
              {
                "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
                "valueUrl": "string"
              }
            ],
            "code": "http://hl7.org/fhirpath/System.String"
          }
        ],
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          }
        ]
      },
      {
        "id": "Timing.extension",
        "path": "Timing.extension",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "url"
            }
          ],
          "description": "Extensions are always sliced by (at least) url",
          "rules": "open"
        },
        "short": "Additional content defined by implementations",
        "definition": "May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.",
        "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
        "alias": [
          "extensions",
          "user content"
        ],
        "min": 0,
        "max": "*",
        "base": {
          "path": "Element.extension",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "Extension"
          }
        ],
        "condition": [
          "ele-1"
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "xpath": "@value|f:*|h:div",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          },
          {
            "key": "ext-1",
            "severity": "error",
            "human": "Must have either extensions or value[x], not both",
            "expression": "extension.exists() != value.exists()",
            "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])",
            "source": "http://hl7.org/fhir/StructureDefinition/Extension"
          }
        ],
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          },
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Timing.modifierExtension",
        "path": "Timing.modifierExtension",
        "short": "Extensions that cannot be ignored even if unrecognized",
        "definition": "May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.\n\nModifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).",
        "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
        "requirements": "Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](extensibility.html#modifierExtension).",
        "alias": [
          "extensions",
          "user content",
          "modifiers"
        ],
        "min": 0,
        "max": "*",
        "base": {
          "path": "BackboneElement.modifierExtension",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "Extension"
          }
        ],
        "condition": [
          "ele-1"
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "xpath": "@value|f:*|h:div",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          },
          {
            "key": "ext-1",
            "severity": "error",
            "human": "Must have either extensions or value[x], not both",
            "expression": "extension.exists() != value.exists()",
            "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])",
            "source": "http://hl7.org/fhir/StructureDefinition/Extension"
          }
        ],
        "isModifier": true,
        "isModifierReason": "Modifier extensions are expected to modify the meaning or interpretation of the element that contains them",
        "isSummary": true,
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          },
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Timing.event",
        "path": "Timing.event",
        "short": "事件发生时间",
        "definition": "Identifies specific times when the event occurs.",
        "requirements": "In a Medication Administration Record, for instance, you need to take a general specification, and turn it into a precise specification.",
        "min": 0,
        "max": "*",
        "base": {
          "path": "Timing.event",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "dateTime"
          }
        ],
        "condition": [
          "ele-1"
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "xpath": "@value|f:*|h:div",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          }
        ],
        "isSummary": true,
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          },
          {
            "identity": "rim",
            "map": "QLIST<TS>"
          }
        ]
      },
      {
        "id": "Timing.repeat",
        "path": "Timing.repeat",
        "short": "重复事件的时间规则",
        "definition": "用于描述事件定时计划何时生效的一组规则。",
        "requirements": "Many timing schedules are determined by regular repetitions.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Timing.repeat",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "Element"
          }
        ],
        "condition": [
          "ele-1"
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "xpath": "@value|f:*|h:div",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          },
          {
            "key": "tim-9",
            "severity": "error",
            "human": "If there's an offset, there must be a when (and not C, CM, CD, CV)",
            "expression": "offset.empty() or (when.exists() and ((when in ('C' | 'CM' | 'CD' | 'CV')).not()))",
            "xpath": "not(exists(f:offset)) or exists(f:when)",
            "source": "http://hl7.org/fhir/StructureDefinition/Timing"
          },
          {
            "key": "tim-5",
            "severity": "error",
            "human": "period SHALL be a non-negative value",
            "expression": "period.exists() implies period >= 0",
            "xpath": "f:period/@value >= 0 or not(f:period/@value)",
            "source": "http://hl7.org/fhir/StructureDefinition/Timing"
          },
          {
            "key": "tim-6",
            "severity": "error",
            "human": "If there's a periodMax, there must be a period",
            "expression": "periodMax.empty() or period.exists()",
            "xpath": "not(exists(f:periodMax)) or exists(f:period)",
            "source": "http://hl7.org/fhir/StructureDefinition/Timing"
          },
          {
            "key": "tim-7",
            "severity": "error",
            "human": "If there's a durationMax, there must be a duration",
            "expression": "durationMax.empty() or duration.exists()",
            "xpath": "not(exists(f:durationMax)) or exists(f:duration)",
            "source": "http://hl7.org/fhir/StructureDefinition/Timing"
          },
          {
            "key": "tim-8",
            "severity": "error",
            "human": "If there's a countMax, there must be a count",
            "expression": "countMax.empty() or count.exists()",
            "xpath": "not(exists(f:countMax)) or exists(f:count)",
            "source": "http://hl7.org/fhir/StructureDefinition/Timing"
          },
          {
            "key": "tim-1",
            "severity": "error",
            "human": "if there's a duration, there needs to be duration units",
            "expression": "duration.empty() or durationUnit.exists()",
            "xpath": "not(exists(f:duration)) or exists(f:durationUnit)",
            "source": "http://hl7.org/fhir/StructureDefinition/Timing"
          },
          {
            "key": "tim-10",
            "severity": "error",
            "human": "If there's a timeOfDay, there cannot be a when, or vice versa",
            "expression": "timeOfDay.empty() or when.empty()",
            "xpath": "not(exists(f:timeOfDay)) or not(exists(f:when))",
            "source": "http://hl7.org/fhir/StructureDefinition/Timing"
          },
          {
            "key": "tim-2",
            "severity": "error",
            "human": "if there's a period, there needs to be period units",
            "expression": "period.empty() or periodUnit.exists()",
            "xpath": "not(exists(f:period)) or exists(f:periodUnit)",
            "source": "http://hl7.org/fhir/StructureDefinition/Timing"
          },
          {
            "key": "tim-4",
            "severity": "error",
            "human": "duration SHALL be a non-negative value",
            "expression": "duration.exists() implies duration >= 0",
            "xpath": "f:duration/@value >= 0 or not(f:duration/@value)",
            "source": "http://hl7.org/fhir/StructureDefinition/Timing"
          }
        ],
        "isSummary": true,
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          },
          {
            "identity": "rim",
            "map": "Implies PIVL or EIVL"
          }
        ]
      },
      {
        "id": "Timing.repeat.id",
        "path": "Timing.repeat.id",
        "representation": [
          "xmlAttr"
        ],
        "short": "Unique id for inter-element referencing",
        "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Element.id",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "extension": [
              {
                "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
                "valueUrl": "string"
              }
            ],
            "code": "http://hl7.org/fhirpath/System.String"
          }
        ],
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          }
        ]
      },
      {
        "id": "Timing.repeat.extension",
        "path": "Timing.repeat.extension",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "url"
            }
          ],
          "description": "Extensions are always sliced by (at least) url",
          "rules": "open"
        },
        "short": "Additional content defined by implementations",
        "definition": "May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.",
        "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
        "alias": [
          "extensions",
          "user content"
        ],
        "min": 0,
        "max": "*",
        "base": {
          "path": "Element.extension",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "Extension"
          }
        ],
        "condition": [
          "ele-1"
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "xpath": "@value|f:*|h:div",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          },
          {
            "key": "ext-1",
            "severity": "error",
            "human": "Must have either extensions or value[x], not both",
            "expression": "extension.exists() != value.exists()",
            "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])",
            "source": "http://hl7.org/fhir/StructureDefinition/Extension"
          }
        ],
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          },
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Timing.repeat.bounds[x]",
        "path": "Timing.repeat.bounds[x]",
        "short": "Length/Range of lengths, or (Start and/or end) limits",
        "definition": "Either a duration for the length of the timing schedule, a range of possible length, or outer bounds for start and/or end limits of the timing schedule.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Timing.repeat.bounds[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "Duration"
          },
          {
            "code": "Range"
          },
          {
            "code": "Period"
          }
        ],
        "condition": [
          "ele-1"
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "xpath": "@value|f:*|h:div",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          }
        ],
        "isSummary": true,
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          },
          {
            "identity": "rim",
            "map": "IVL(TS) used in a QSI"
          }
        ]
      },
      {
        "id": "Timing.repeat.count",
        "path": "Timing.repeat.count",
        "short": "Number of times to repeat",
        "definition": "A total count of the desired number of repetitions across the duration of the entire timing specification. If countMax is present, this element indicates the lower bound of the allowed range of count values.",
        "comment": "If you have both bounds and count, then this should be understood as within the bounds period, until count times happens.",
        "requirements": "Repetitions may be limited by end time or total occurrences.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Timing.repeat.count",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "positiveInt"
          }
        ],
        "condition": [
          "ele-1"
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "xpath": "@value|f:*|h:div",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          }
        ],
        "isSummary": true,
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          },
          {
            "identity": "rim",
            "map": "PIVL.count"
          }
        ]
      },
      {
        "id": "Timing.repeat.countMax",
        "path": "Timing.repeat.countMax",
        "short": "Maximum number of times to repeat",
        "definition": "If present, indicates that the count is a range - so to perform the action between [count] and [countMax] times.",
        "comment": "32 bit number; for values larger than this, use decimal",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Timing.repeat.countMax",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "positiveInt"
          }
        ],
        "condition": [
          "ele-1"
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "xpath": "@value|f:*|h:div",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          }
        ],
        "isSummary": true,
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          },
          {
            "identity": "rim",
            "map": "PIVL.count"
          }
        ]
      },
      {
        "id": "Timing.repeat.duration",
        "path": "Timing.repeat.duration",
        "short": "How long when it happens",
        "definition": "How long this thing happens for when it happens. If durationMax is present, this element indicates the lower bound of the allowed range of the duration.",
        "comment": "For some events the duration is part of the definition of the event (e.g. IV infusions, where the duration is implicit in the specified quantity and rate). For others, it's part of the timing specification (e.g. exercise).",
        "requirements": "Some activities are not instantaneous and need to be maintained for a period of time.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Timing.repeat.duration",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "decimal"
          }
        ],
        "condition": [
          "ele-1"
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "xpath": "@value|f:*|h:div",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          }
        ],
        "isSummary": true,
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          },
          {
            "identity": "rim",
            "map": "PIVL.phase"
          }
        ]
      },
      {
        "id": "Timing.repeat.durationMax",
        "path": "Timing.repeat.durationMax",
        "short": "How long when it happens (Max)",
        "definition": "If present, indicates that the duration is a range - so to perform the action between [duration] and [durationMax] time length.",
        "comment": "For some events the duration is part of the definition of the event (e.g. IV infusions, where the duration is implicit in the specified quantity and rate). For others, it's part of the timing specification (e.g. exercise).",
        "requirements": "Some activities are not instantaneous and need to be maintained for a period of time.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Timing.repeat.durationMax",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "decimal"
          }
        ],
        "condition": [
          "ele-1"
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "xpath": "@value|f:*|h:div",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          }
        ],
        "isSummary": true,
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          },
          {
            "identity": "rim",
            "map": "PIVL.phase"
          }
        ]
      },
      {
        "id": "Timing.repeat.durationUnit",
        "path": "Timing.repeat.durationUnit",
        "short": "s | min | h | d | wk | mo | a - unit of time (UCUM)",
        "definition": "The units of time for the duration, in UCUM units.",
        "comment": "Note that FHIR strings SHALL NOT exceed 1MB in size",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Timing.repeat.durationUnit",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "code"
          }
        ],
        "condition": [
          "ele-1"
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "xpath": "@value|f:*|h:div",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          }
        ],
        "isSummary": true,
        "binding": {
          "extension": [
            {
              "url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
              "valueString": "UnitsOfTime"
            }
          ],
          "strength": "required",
          "description": "A unit of time (units from UCUM).",
          "valueSet": "http://hl7.org/fhir/ValueSet/units-of-time|4.0.1"
        },
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          },
          {
            "identity": "rim",
            "map": "PIVL.phase.unit"
          }
        ]
      },
      {
        "id": "Timing.repeat.frequency",
        "path": "Timing.repeat.frequency",
        "short": "Event occurs frequency times per period",
        "definition": "The number of times to repeat the action within the specified period. If frequencyMax is present, this element indicates the lower bound of the allowed range of the frequency.",
        "comment": "32 bit number; for values larger than this, use decimal",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Timing.repeat.frequency",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "positiveInt"
          }
        ],
        "meaningWhenMissing": "If no frequency is stated, the assumption is that the event occurs once per period, but systems SHOULD always be specific about this",
        "condition": [
          "ele-1"
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "xpath": "@value|f:*|h:div",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          }
        ],
        "isSummary": true,
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          },
          {
            "identity": "rim",
            "map": "PIVL.phase"
          }
        ]
      },
      {
        "id": "Timing.repeat.frequencyMax",
        "path": "Timing.repeat.frequencyMax",
        "short": "Event occurs up to frequencyMax times per period",
        "definition": "If present, indicates that the frequency is a range - so to repeat between [frequency] and [frequencyMax] times within the period or period range.",
        "comment": "32 bit number; for values larger than this, use decimal",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Timing.repeat.frequencyMax",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "positiveInt"
          }
        ],
        "condition": [
          "ele-1"
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "xpath": "@value|f:*|h:div",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          }
        ],
        "isSummary": true,
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          },
          {
            "identity": "rim",
            "map": "PIVL.phase"
          }
        ]
      },
      {
        "id": "Timing.repeat.period",
        "path": "Timing.repeat.period",
        "short": "Event occurs frequency times per period",
        "definition": "Indicates the duration of time over which repetitions are to occur; e.g. to express \"3 times per day\", 3 would be the frequency and \"1 day\" would be the period. If periodMax is present, this element indicates the lower bound of the allowed range of the period length.",
        "comment": "Do not use an IEEE type floating point type, instead use something that works like a true decimal, with inbuilt precision (e.g. Java BigInteger)",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Timing.repeat.period",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "decimal"
          }
        ],
        "condition": [
          "ele-1"
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "xpath": "@value|f:*|h:div",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          }
        ],
        "isSummary": true,
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          },
          {
            "identity": "rim",
            "map": "PIVL.phase"
          }
        ]
      },
      {
        "id": "Timing.repeat.periodMax",
        "path": "Timing.repeat.periodMax",
        "short": "Upper limit of period (3-4 hours)",
        "definition": "If present, indicates that the period is a range from [period] to [periodMax], allowing expressing concepts such as \"do this once every 3-5 days.",
        "comment": "Do not use an IEEE type floating point type, instead use something that works like a true decimal, with inbuilt precision (e.g. Java BigInteger)",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Timing.repeat.periodMax",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "decimal"
          }
        ],
        "condition": [
          "ele-1"
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "xpath": "@value|f:*|h:div",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          }
        ],
        "isSummary": true,
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          },
          {
            "identity": "rim",
            "map": "PIVL.phase"
          }
        ]
      },
      {
        "id": "Timing.repeat.periodUnit",
        "path": "Timing.repeat.periodUnit",
        "short": "s | min | h | d | wk | mo | a - unit of time (UCUM)",
        "definition": "The units of time for the period in UCUM units.",
        "comment": "Note that FHIR strings SHALL NOT exceed 1MB in size",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Timing.repeat.periodUnit",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "code"
          }
        ],
        "condition": [
          "ele-1"
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "xpath": "@value|f:*|h:div",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          }
        ],
        "isSummary": true,
        "binding": {
          "extension": [
            {
              "url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
              "valueString": "UnitsOfTime"
            }
          ],
          "strength": "required",
          "description": "A unit of time (units from UCUM).",
          "valueSet": "http://hl7.org/fhir/ValueSet/units-of-time|4.0.1"
        },
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          },
          {
            "identity": "rim",
            "map": "PIVL.phase.unit"
          }
        ]
      },
      {
        "id": "Timing.repeat.dayOfWeek",
        "path": "Timing.repeat.dayOfWeek",
        "short": "mon | tue | wed | thu | fri | sat | sun",
        "definition": "If one or more days of week is provided, then the action happens only on the specified day(s).",
        "comment": "If no days are specified, the action is assumed to happen every day as otherwise specified. The elements frequency and period cannot be used as well as dayOfWeek.",
        "min": 0,
        "max": "*",
        "base": {
          "path": "Timing.repeat.dayOfWeek",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "code"
          }
        ],
        "condition": [
          "ele-1"
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "xpath": "@value|f:*|h:div",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          }
        ],
        "isSummary": true,
        "binding": {
          "extension": [
            {
              "url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
              "valueString": "DayOfWeek"
            }
          ],
          "strength": "required",
          "valueSet": "http://hl7.org/fhir/ValueSet/days-of-week|4.0.1"
        },
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          }
        ]
      },
      {
        "id": "Timing.repeat.timeOfDay",
        "path": "Timing.repeat.timeOfDay",
        "short": "Time of day for action",
        "definition": "Specified time of day for action to take place.",
        "comment": "When time of day is specified, it is inferred that the action happens every day (as filtered by dayofWeek) on the specified times. The elements when, frequency and period cannot be used as well as timeOfDay.",
        "min": 0,
        "max": "*",
        "base": {
          "path": "Timing.repeat.timeOfDay",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "time"
          }
        ],
        "condition": [
          "ele-1"
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "xpath": "@value|f:*|h:div",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          }
        ],
        "isSummary": true,
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          }
        ]
      },
      {
        "id": "Timing.repeat.when",
        "path": "Timing.repeat.when",
        "short": "Code for time period of occurrence",
        "definition": "An approximate time period during the day, potentially linked to an event of daily living that indicates when the action should occur.",
        "comment": "When more than one event is listed, the event is tied to the union of the specified events.",
        "requirements": "Timings are frequently determined by occurrences such as waking, eating and sleep.",
        "min": 0,
        "max": "*",
        "base": {
          "path": "Timing.repeat.when",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "code"
          }
        ],
        "condition": [
          "ele-1"
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "xpath": "@value|f:*|h:div",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          }
        ],
        "isSummary": true,
        "binding": {
          "extension": [
            {
              "url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
              "valueString": "EventTiming"
            }
          ],
          "strength": "required",
          "description": "Real world event relating to the schedule.",
          "valueSet": "http://hl7.org/fhir/ValueSet/event-timing|4.0.1"
        },
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          },
          {
            "identity": "rim",
            "map": "EIVL.event"
          }
        ]
      },
      {
        "id": "Timing.repeat.offset",
        "path": "Timing.repeat.offset",
        "short": "Minutes from event (before or after)",
        "definition": "The number of minutes from the event. If the event code does not indicate whether the minutes is before or after the event, then the offset is assumed to be after the event.",
        "comment": "32 bit number; for values larger than this, use decimal",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Timing.repeat.offset",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "unsignedInt"
          }
        ],
        "condition": [
          "ele-1"
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "xpath": "@value|f:*|h:div",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          }
        ],
        "isSummary": true,
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          },
          {
            "identity": "rim",
            "map": "EIVL.offset"
          }
        ]
      },
      {
        "id": "Timing.code",
        "path": "Timing.code",
        "short": "BID | TID | QID | AM | PM | QD | QOD | QW | BIW | Q2H |+",
        "definition": "用编码来表示定时计划。可以使用像BID这样的通用编码，也可以使用机构自己定义的额外编码。 如果提供了编码，只编码所表示的才是完整的描述（无论定时类型中其它元素的值是什么）。 另外，无论是使用编码还是使用元素数据来定义定时计划，Timing.repeat.bounds元素定义的内容都适用于编码（编码并不包含bounds）。",
        "comment": "常用编码有：\r\nBID：每日两次 ；TID：一日三次 ；QID ：一日四次； AM：上午 ；PM：下午 ； QD：一日一次；QOD：隔日一次；QW：一周一次；BIW：两周两次；Q2H：每两小时一次；QN：每晚一次；HS：临睡前，等等。\r\n 更具体的时间点则通常由机构自行规定并形成惯例。例如，某医院的BID指的就是“在早上7点和下午6点”。如果没有这样的约定，则不应使用编码BID来表示。\r\n  为了解决此问题另外有两种方式，一是使用机构的自定义编码；二是使用两个Timing.event元素来分别指定两个具体的时间。",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Timing.code",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "CodeableConcept"
          }
        ],
        "condition": [
          "ele-1"
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "xpath": "@value|f:*|h:div",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          }
        ],
        "isSummary": true,
        "binding": {
          "extension": [
            {
              "url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
              "valueString": "TimingAbbreviation"
            }
          ],
          "strength": "preferred",
          "description": "Code for a known / defined timing pattern.",
          "valueSet": "http://hl7.org/fhir/ValueSet/timing-abbreviation"
        },
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          },
          {
            "identity": "v2",
            "map": "CE/CNE/CWE"
          },
          {
            "identity": "rim",
            "map": "CD"
          },
          {
            "identity": "orim",
            "map": "fhir:CodeableConcept rdfs:subClassOf dt:CD"
          },
          {
            "identity": "rim",
            "map": "QSC.code"
          }
        ]
      }
    ]
  },
  "differential": {
    "element": [
      {
        "id": "Timing",
        "path": "Timing",
        "short": "定时数据类型用于为可能多次发生的事件设置定时计划",
        "definition": "为可能多次发生的事件设置定时计划。定时数据类型用来记录那些计划、预期或申请发生的事件。常用于药物剂量类型（Dosage）的用法时间元素、照护计划资源（CarePlan）的日程元素。也可用于报告过去定期活动的时间表。",
        "comment": "定时数据类型用于指定事件预期或申请发生的时间，它的“事件”元素（Timing.event)定义为“未来”事件，但也可用于描述历史或正在发生的事件。 也可用于表示过去或正在进行的事件的摘要。为简单起见，计时组件的。\r\n\r\n定时数据类型支持以列表形式指定多个事件发生的时间，也支持指定的事件发生的条件。 其表现方式可以用结构化元素，也可以用编码表示。 当同时指定“事件”元素（Timing.event)和“重复”元素（Timing.repeat)，应将“事件”元素理解为对“重复”元素中的信息的解释。"
      },
      {
        "id": "Timing.event",
        "path": "Timing.event",
        "short": "事件发生时间"
      },
      {
        "id": "Timing.repeat",
        "path": "Timing.repeat",
        "short": "重复事件的时间规则",
        "definition": "用于描述事件定时计划何时生效的一组规则。"
      },
      {
        "id": "Timing.code",
        "path": "Timing.code",
        "short": "BID | TID | QID | AM | PM | QD | QOD | QW | BIW | Q2H |+",
        "definition": "用编码来表示定时计划。可以使用像BID这样的通用编码，也可以使用机构自己定义的额外编码。 如果提供了编码，只编码所表示的才是完整的描述（无论定时类型中其它元素的值是什么）。 另外，无论是使用编码还是使用元素数据来定义定时计划，Timing.repeat.bounds元素定义的内容都适用于编码（编码并不包含bounds）。",
        "comment": "常用编码有：\r\nBID：每日两次 ；TID：一日三次 ；QID ：一日四次； AM：上午 ；PM：下午 ； QD：一日一次；QOD：隔日一次；QW：一周一次；BIW：两周两次；Q2H：每两小时一次；QN：每晚一次；HS：临睡前，等等。\r\n 更具体的时间点则通常由机构自行规定并形成惯例。例如，某医院的BID指的就是“在早上7点和下午6点”。如果没有这样的约定，则不应使用编码BID来表示。\r\n  为了解决此问题另外有两种方式，一是使用机构的自定义编码；二是使用两个Timing.event元素来分别指定两个具体的时间。"
      }
    ]
  }
}