OpenEHR Base package
0.1.0 - First Draft International flag

OpenEHR Base package, published by openEHR + HL7. This guide is not an authorized publication; it is the continuous build for version 0.1.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/openehr-fhir/base-spec/ and changes regularly. See the Directory of published versions

Logical Model: DV_QUANTITY - JSON Profile

Page standards status: Informative Maturity Level: 3

JSON representation of the DV-QUANTITY logical model.

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{
  "resourceType" : "StructureDefinition",
  "id" : "DV-QUANTITY",
  "text" : {
    "status" : "extensions",
    "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p class=\"res-header-id\"><b>Generated Narrative: StructureDefinition DV-QUANTITY</b></p><a name=\"DV-QUANTITY\"> </a><a name=\"hcDV-QUANTITY\"> </a><table border=\"0\" cellpadding=\"0\" cellspacing=\"0\" style=\"border: 0px #F0F0F0 solid; font-size: 11px; font-family: verdana; vertical-align: top;\"><tr style=\"border: 1px #F0F0F0 solid; font-size: 11px; font-family: verdana; vertical-align: top\"><th style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px\" class=\"hierarchy\"><a href=\"https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\" title=\"The logical name of the element\">Name</a></th><th style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px\" class=\"hierarchy\"><a href=\"https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\" title=\"Information about the use of the element\">Flags</a></th><th style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px\" class=\"hierarchy\"><a href=\"https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\" title=\"Minimum and Maximum # of times the element can appear in the instance\">Card.</a></th><th style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px; width: 100px\" class=\"hierarchy\"><a href=\"https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\" title=\"Reference to the type of the element\">Type</a></th><th style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px\" class=\"hierarchy\"><a href=\"https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\" title=\"Additional information about the element\">Description &amp; Constraints</a><span style=\"float: right\"><a href=\"https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\" title=\"Legend for this format\"><img src=\"data:image/png;base64,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\" alt=\"doco\" style=\"background-color: inherit\"/></a></span></th></tr><tr style=\"border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white\"><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck1.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_element.gif\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"Element\" class=\"hierarchy\"/> <a href=\"StructureDefinition-DV-QUANTITY-definitions.html#DV_QUANTITY\" title=\"Quantitified type representing  scientific  quantities, i.e. quantities expressed as a magnitude and units. Units are expressed in the UCUM syntax (http://unitsofmeasure.org/ucum.html[Unified Code for Units of Measure (UCUM)], by Gunther Schadow and Clement J. McDonald of The Regenstrief Institute)  (case-sensitive form) by default, or another system if `_units_system_` is set. \n\nCan also be used for time durations, where it is more convenient to treat these as simply a number of seconds rather than days, months, years (in the latter case, `DV_DURATION` may be used).\">DV_QUANTITY</a><a name=\"DV_QUANTITY\"> </a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">0..*</td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"StructureDefinition-DV-AMOUNT.html\">DV_AMOUNT</a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Quantitified type representing  scientific  quantities, i.<br/><br/>Elements defined in Ancestors:<a href=\"StructureDefinition-BASIC-DEFINITIONS.html\" title=\"Carriage return character.\">CR</a>, <a href=\"StructureDefinition-BASIC-DEFINITIONS.html\" title=\"Line feed character.\">LF</a>, <a href=\"StructureDefinition-OPENEHR-DEFINITIONS.html\" title=\"Predefined terminology identifier to indicate it is local to the knowledge resource in which it occurs, e.g. an archetype\">Local_terminology_id</a>, <a href=\"StructureDefinition-DV-ORDERED.html\" title=\"Optional normal status indicator of value with respect to normal range for this value. Often included by lab, even if the normal range itself is not included. Coded by ordinals in series HHH, HH, H, (nothing), L, LL, LLL; see openEHR terminology group  `normal_status`. \">normal_status</a>, <a href=\"StructureDefinition-DV-ORDERED.html\" title=\"Optional normal range. \">normal_range</a>, <a href=\"StructureDefinition-DV-ORDERED.html\" title=\"Optional tagged other reference ranges for this value in its particular measurement context.\">other_reference_ranges</a>, <a href=\"StructureDefinition-DV-QUANTIFIED.html\" title=\"Optional status of magnitude with values: \n\n* `&quot;=&quot;`   :   magnitude is a point value \n* `&quot;&lt;&quot;`   :   value is &lt; magnitude \n* `&quot;&gt;&quot;`   :   value is &gt; magnitude \n* `&quot;&lt;=&quot;` : value is &lt;= magnitude \n* `&quot;&gt;=&quot;` : value is &gt;= magnitude \n* `&quot;~&quot;`   :   value is approximately magnitude \n\nIf not present, assumed meaning is  `&quot;=&quot;` . \n\">magnitude_status</a>, <a href=\"StructureDefinition-DV-QUANTIFIED.html\" title=\"Accuracy of measurement. Exact form of expression determined in descendants.\">accuracy</a>, <a href=\"StructureDefinition-DV-AMOUNT.html\" title=\"If `True`, indicates that when this object was created, `_accuracy_` was recorded as a percent value; if `False`, as an absolute quantity value.\">accuracy_is_percent</a>, <a href=\"StructureDefinition-DV-AMOUNT.html\" title=\"Accuracy of measurement, expressed either as a half-range percent value (`_accuracy_is_percent_` = `True`) or a half-range quantity. A value of `0` means that accuracy is 100%, i.e. no error.\n\nA value of `_unknown_accuracy_value_` means that accuracy was not recorded.\">accuracy</a><br/></td></tr>\r\n<tr style=\"border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7\"><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_primitive.png\" alt=\".\" style=\"background-color: #F7F7F7; background-color: inherit\" title=\"Primitive Data Type\" class=\"hierarchy\"/> <a href=\"StructureDefinition-DV-QUANTITY-definitions.html#DV_QUANTITY.magnitude\" title=\"Numeric magnitude of the quantity.\">magnitude</a><a name=\"DV_QUANTITY.magnitude\"> </a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">1..1</td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R5/datatypes.html#decimal\">decimal</a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Numeric magnitude of the quantity.</td></tr>\r\n<tr style=\"border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white\"><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_primitive.png\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"Primitive Data Type\" class=\"hierarchy\"/> <a href=\"StructureDefinition-DV-QUANTITY-definitions.html#DV_QUANTITY.precision\" title=\"Precision to which the value of the quantity is expressed, in terms of number of decimal places. The value 0 implies an integral quantity.\nThe value -1 implies no limit, i.e. any number of decimal places.\">precision</a><a name=\"DV_QUANTITY.precision\"> </a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">0..1</td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R5/datatypes.html#integer\">integer</a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Precision to which the value of the quantity is expressed, in terms of number of decimal places.</td></tr>\r\n<tr style=\"border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7\"><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_primitive.png\" alt=\".\" style=\"background-color: #F7F7F7; background-color: inherit\" title=\"Primitive Data Type\" class=\"hierarchy\"/> <a href=\"StructureDefinition-DV-QUANTITY-definitions.html#DV_QUANTITY.units\" title=\"Quantity units, expressed as a code or syntax string from either UCUM (the default) or the units system specified in `_units_system_`, when set.\n\nIn either case, the value is the code or syntax - normally formed of standard ASCII - which is in principal not the same as the display string, although in simple cases such as 'm' (for meters) it will be.\n\nIf the `_units_display_name_` field is set, this may be used for display. If not, the implementations must effect the resolution of the `_units_` value to a display form locally, e.g. by lookup of reference tables, request to a terminology service etc.\n\nExample values from UCUM: &quot;kg/m^2&quot;, “mm[Hg]&quot;, &quot;ms-1&quot;, &quot;km/h&quot;.\">units</a><a name=\"DV_QUANTITY.units\"> </a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">1..1</td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R5/datatypes.html#string\">string</a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Quantity units, expressed as a code or syntax string from either UCUM (the default) or the units system specified in `_units_system_`, when set.</td></tr>\r\n<tr style=\"border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white\"><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_resource.png\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"Resource\" class=\"hierarchy\"/> <a href=\"StructureDefinition-DV-QUANTITY-definitions.html#DV_QUANTITY.normal-range\" title=\"Optional normal range. \">normal_range</a><a name=\"DV_QUANTITY.normal_range\"> </a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">0..1</td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"StructureDefinition-DV-INTERVAL.html\">DV_INTERVAL</a>&lt;<a href=\"StructureDefinition-DV-QUANTITY.html\">DV_QUANTITY</a>&gt;</td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Optional normal range.</td></tr>\r\n<tr style=\"border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7\"><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_resource.png\" alt=\".\" style=\"background-color: #F7F7F7; background-color: inherit\" title=\"Resource\" class=\"hierarchy\"/> <a href=\"StructureDefinition-DV-QUANTITY-definitions.html#DV_QUANTITY.other-reference-ranges\" title=\"Optional tagged other reference ranges for this value in its particular measurement context.\">other_reference_ranges</a><a name=\"DV_QUANTITY.other_reference_ranges\"> </a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">0..*</td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"StructureDefinition-REFERENCE-RANGE.html\">REFERENCE_RANGE</a>&lt;<a href=\"StructureDefinition-DV-QUANTITY.html\">DV_QUANTITY</a>&gt;</td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Optional tagged other reference ranges for this value in its particular measurement context.<br/></td></tr>\r\n<tr style=\"border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white\"><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_primitive.png\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"Primitive Data Type\" class=\"hierarchy\"/> <a href=\"StructureDefinition-DV-QUANTITY-definitions.html#DV_QUANTITY.units-system\" title=\"Optional field used to specify a units system from which codes in `_units_` are defined. Value is a URI identifying a terminology containing units concepts from the  (https://www.hl7.org/fhir/terminologies-systems.html[HL7 FHIR terminologies list]).\n\nIf not set, the UCUM standard (case-sensitive codes) is assumed as the units system.\">units_system</a><a name=\"DV_QUANTITY.units_system\"> </a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">0..1</td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R5/datatypes.html#string\">string</a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Optional field used to specify a units system from which codes in `_units_` are defined.</td></tr>\r\n<tr style=\"border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7\"><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck00.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin_end.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_primitive.png\" alt=\".\" style=\"background-color: #F7F7F7; background-color: inherit\" title=\"Primitive Data Type\" class=\"hierarchy\"/> <a href=\"StructureDefinition-DV-QUANTITY-definitions.html#DV_QUANTITY.units-display-name\" title=\"Optional field containing the displayable form of the `_units_` field, e.g. `'°C'`.\n\nIf not set, the application environment needs to determine the displayable form.\n\nNOTE: The display name may be language-dependent for various older and non-systematic units. For this reason, it is not recommended to add unit display names to archetypes, only to templates (for localisation purposes).\">units_display_name</a><a name=\"DV_QUANTITY.units_display_name\"> </a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">0..1</td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R5/datatypes.html#string\">string</a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Optional field containing the displayable form of the `_units_` field, e.</td></tr>\r\n<tr><td colspan=\"5\" class=\"hierarchy\"><br/><a href=\"https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\" title=\"Legend for this format\"><img src=\"data:image/png;base64,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\" alt=\"doco\" style=\"background-color: inherit\"/> Documentation for this format</a></td></tr></table></div>"
  },
  "contained" : [
    {
      "resourceType" : "OperationDefinition",
      "id" : "add",
      "name" : "add",
      "title" : "add",
      "status" : "active",
      "kind" : "operation",
      "description" : "Sum of this `DV_QUANTITY` and `_other_`.",
      "code" : "add",
      "system" : false,
      "instance" : true,
      "parameter" : [
        {
          "name" : "other",
          "use" : "in",
          "min" : 1,
          "max" : "1",
          "type" : "decimal"
        },
        {
          "name" : "return",
          "use" : "out",
          "min" : 1,
          "max" : "1",
          "type" : "decimal"
        }
      ]
    },
    {
      "resourceType" : "OperationDefinition",
      "id" : "subtract",
      "name" : "subtract",
      "title" : "subtract",
      "status" : "active",
      "kind" : "operation",
      "description" : "Difference of this `DV_QUANTITY` and `_other_`.",
      "code" : "subtract",
      "system" : false,
      "instance" : true,
      "parameter" : [
        {
          "name" : "other",
          "use" : "in",
          "min" : 1,
          "max" : "1",
          "type" : "decimal"
        },
        {
          "name" : "return",
          "use" : "out",
          "min" : 1,
          "max" : "1",
          "type" : "decimal"
        }
      ]
    },
    {
      "resourceType" : "OperationDefinition",
      "id" : "multiply",
      "name" : "multiply",
      "title" : "multiply",
      "status" : "active",
      "kind" : "operation",
      "description" : "Product of this `DV_QUANTITY` and `_factor_`.",
      "code" : "multiply",
      "system" : false,
      "instance" : true,
      "parameter" : [
        {
          "name" : "factor",
          "use" : "in",
          "min" : 1,
          "max" : "1",
          "type" : "decimal"
        },
        {
          "name" : "return",
          "use" : "out",
          "min" : 1,
          "max" : "1",
          "type" : "decimal"
        }
      ]
    },
    {
      "resourceType" : "OperationDefinition",
      "id" : "less_than",
      "name" : "less_than",
      "title" : "less_than",
      "status" : "active",
      "kind" : "operation",
      "description" : "True if this Quantity object is less than `_other_`, based on comparison of `_magnitude_`. Only valid if `_is_strictly_comparable_to()_` is True.",
      "code" : "less_than",
      "system" : false,
      "instance" : true,
      "parameter" : [
        {
          "name" : "other",
          "use" : "in",
          "min" : 1,
          "max" : "1",
          "type" : "decimal"
        },
        {
          "name" : "return",
          "use" : "out",
          "min" : 1,
          "max" : "1",
          "type" : "boolean"
        }
      ]
    },
    {
      "resourceType" : "OperationDefinition",
      "id" : "is_integral",
      "name" : "is_integral",
      "title" : "is_integral",
      "status" : "active",
      "kind" : "operation",
      "description" : "True if `_precision_` = 0, meaning that the `_magnitude_` is a whole number.",
      "code" : "is_integral",
      "system" : false,
      "instance" : true,
      "parameter" : [
        {
          "name" : "return",
          "use" : "out",
          "min" : 1,
          "max" : "1",
          "type" : "boolean"
        }
      ]
    },
    {
      "resourceType" : "OperationDefinition",
      "id" : "is_strictly_comparable_to",
      "name" : "is_strictly_comparable_to",
      "title" : "is_strictly_comparable_to",
      "status" : "active",
      "kind" : "operation",
      "description" : "True if this quantity and `_other_` have the same `_units_` and also `_units_system_` if it exists.",
      "code" : "is_strictly_comparable_to",
      "system" : false,
      "instance" : true,
      "parameter" : [
        {
          "name" : "other",
          "use" : "in",
          "min" : 1,
          "max" : "1",
          "type" : "Parameters"
        },
        {
          "name" : "return",
          "use" : "out",
          "min" : 1,
          "max" : "1",
          "type" : "boolean"
        }
      ]
    }
  ],
  "extension" : [
    {
      "url" : "http://hl7.org/fhir/tools/StructureDefinition/web-source",
      "valueUrl" : "https://specifications.openehr.org/releases/RM/Release-1.1.0/data_types.html#_dv_quantity_class"
    },
    {
      "url" : "http://hl7.org/fhir/tools/StructureDefinition/type-operation",
      "valueCanonical" : "#add"
    },
    {
      "url" : "http://hl7.org/fhir/tools/StructureDefinition/type-operation",
      "valueCanonical" : "#subtract"
    },
    {
      "url" : "http://hl7.org/fhir/tools/StructureDefinition/type-operation",
      "valueCanonical" : "#multiply"
    },
    {
      "url" : "http://hl7.org/fhir/tools/StructureDefinition/type-operation",
      "valueCanonical" : "#less_than"
    },
    {
      "url" : "http://hl7.org/fhir/tools/StructureDefinition/type-operation",
      "valueCanonical" : "#is_integral"
    },
    {
      "url" : "http://hl7.org/fhir/tools/StructureDefinition/type-operation",
      "valueCanonical" : "#is_strictly_comparable_to"
    },
    {
      "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
      "valueCode" : "fhir"
    },
    {
      "url" : "http://hl7.org/fhir/tools/StructureDefinition/view-hint",
      "valueCode" : "element-view-as-leaf"
    },
    {
      "url" : "http://hl7.org/fhir/tools/StructureDefinition/view-hint",
      "valueCode" : "element-view-defns-parent"
    },
    {
      "url" : "http://hl7.org/fhir/tools/StructureDefinition/view-hint",
      "valueCode" : "element-view-replace-cardinality"
    },
    {
      "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
      "valueInteger" : 3,
      "_valueInteger" : {
        "extension" : [
          {
            "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom",
            "valueCanonical" : "http://openehr.org/fhir/ImplementationGuide/openehr.base"
          }
        ]
      }
    },
    {
      "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
      "valueCode" : "informative",
      "_valueCode" : {
        "extension" : [
          {
            "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom",
            "valueCanonical" : "http://openehr.org/fhir/ImplementationGuide/openehr.base"
          }
        ]
      }
    }
  ],
  "url" : "http://openehr.org/fhir/StructureDefinition/DV-QUANTITY",
  "version" : "0.1.0",
  "name" : "DV_QUANTITY",
  "title" : "DV_QUANTITY",
  "status" : "active",
  "experimental" : false,
  "date" : "2025-09-06T15:35:39+10:00",
  "publisher" : "openEHR + HL7",
  "contact" : [
    {
      "telecom" : [
        {
          "system" : "url",
          "value" : "http://www.openehr.org"
        }
      ]
    }
  ],
  "description" : "Quantitified type representing  scientific  quantities, i.e. quantities expressed as a magnitude and units. Units are expressed in the UCUM syntax (http://unitsofmeasure.org/ucum.html[Unified Code for Units of Measure (UCUM)], by Gunther Schadow and Clement J. McDonald of The Regenstrief Institute)  (case-sensitive form) by default, or another system if `_units_system_` is set. \n\nCan also be used for time durations, where it is more convenient to treat these as simply a number of seconds rather than days, months, years (in the latter case, `DV_DURATION` may be used).",
  "jurisdiction" : [
    {
      "coding" : [
        {
          "system" : "http://unstats.un.org/unsd/methods/m49/m49.htm",
          "code" : "001"
        }
      ]
    }
  ],
  "fhirVersion" : "5.0.0",
  "mapping" : [
    {
      "identity" : "rim",
      "uri" : "http://hl7.org/v3",
      "name" : "RIM Mapping"
    }
  ],
  "kind" : "logical",
  "abstract" : false,
  "type" : "http://openehr.org/fhir/StructureDefinition/DV_QUANTITY",
  "baseDefinition" : "http://openehr.org/fhir/StructureDefinition/DV-AMOUNT",
  "derivation" : "specialization",
  "snapshot" : {
    "extension" : [
      {
        "url" : "http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version",
        "valueString" : "0.1.0"
      }
    ],
    "element" : [
      {
        "id" : "DV_QUANTITY",
        "path" : "DV_QUANTITY",
        "short" : "Quantitified type representing  scientific  quantities, i.",
        "definition" : "Quantitified type representing  scientific  quantities, i.e. quantities expressed as a magnitude and units. Units are expressed in the UCUM syntax (http://unitsofmeasure.org/ucum.html[Unified Code for Units of Measure (UCUM)], by Gunther Schadow and Clement J. McDonald of The Regenstrief Institute)  (case-sensitive form) by default, or another system if `_units_system_` is set. \n\nCan also be used for time durations, where it is more convenient to treat these as simply a number of seconds rather than days, months, years (in the latter case, `DV_DURATION` may be used).",
        "min" : 0,
        "max" : "*",
        "base" : {
          "path" : "Base",
          "min" : 0,
          "max" : "*"
        },
        "constraint" : [
          {
            "key" : "Other_reference_ranges_validity",
            "severity" : "error",
            "human" : "Other reference ranges validity must be present",
            "expression" : "other_reference_ranges.exists() implies other_reference_ranges.empty().not()",
            "source" : "http://openehr.org/fhir/StructureDefinition/DV-ORDERED"
          },
          {
            "key" : "Is_simple_validity",
            "severity" : "error",
            "human" : "Is simple validity must satisfy conditional constraints",
            "expression" : "(normal_range .empty() and other_reference_ranges .empty()) implies is_simple()",
            "source" : "http://openehr.org/fhir/StructureDefinition/DV-ORDERED"
          },
          {
            "key" : "Normal_range_and_status_consistency",
            "severity" : "error",
            "human" : "Normal range and status consistency must be present",
            "expression" : "(normal_range.exists() and normal_status.exists()) implies (normal_status.code_string.is_equal (“N”) xor normal_range.not().has (self))",
            "source" : "http://openehr.org/fhir/StructureDefinition/DV-ORDERED"
          },
          {
            "key" : "Magnitude_status_valid",
            "severity" : "error",
            "human" : "Magnitude status valid must be present",
            "expression" : "magnitude_status.exists() implies valid_magnitude_status() (magnitude_status)",
            "source" : "http://openehr.org/fhir/StructureDefinition/DV-QUANTIFIED"
          },
          {
            "key" : "Accuracy_is_percent_validity",
            "severity" : "error",
            "human" : "Accuracy is percent validity must satisfy conditional constraints",
            "expression" : "accuracy = 0 implies accuracy_is_percent.not()",
            "source" : "http://openehr.org/fhir/StructureDefinition/DV-AMOUNT"
          },
          {
            "key" : "Accuracy_validity",
            "severity" : "error",
            "human" : "Accuracy validity must satisfy conditional constraints",
            "expression" : "accuracy_is_percent implies valid_percentage() (accuracy)",
            "source" : "http://openehr.org/fhir/StructureDefinition/DV-AMOUNT"
          }
        ],
        "isModifier" : false,
        "mapping" : [
          {
            "identity" : "rim",
            "map" : "n/a"
          }
        ]
      },
      {
        "id" : "DV_QUANTITY.CR",
        "path" : "DV_QUANTITY.CR",
        "short" : "Carriage return character.",
        "definition" : "Carriage return character.",
        "min" : 1,
        "max" : "1",
        "base" : {
          "path" : "BASIC_DEFINITIONS.CR",
          "min" : 1,
          "max" : "1"
        },
        "type" : [
          {
            "code" : "string"
          }
        ],
        "isModifier" : false
      },
      {
        "id" : "DV_QUANTITY.LF",
        "path" : "DV_QUANTITY.LF",
        "short" : "Line feed character.",
        "definition" : "Line feed character.",
        "min" : 1,
        "max" : "1",
        "base" : {
          "path" : "BASIC_DEFINITIONS.LF",
          "min" : 1,
          "max" : "1"
        },
        "type" : [
          {
            "code" : "string"
          }
        ],
        "isModifier" : false
      },
      {
        "id" : "DV_QUANTITY.Local-terminology-id",
        "path" : "DV_QUANTITY.Local_terminology_id",
        "short" : "Predefined terminology identifier",
        "definition" : "Predefined terminology identifier to indicate it is local to the knowledge resource in which it occurs, e.g. an archetype",
        "min" : 1,
        "max" : "1",
        "base" : {
          "path" : "OPENEHR_DEFINITIONS.Local_terminology_id",
          "min" : 1,
          "max" : "1"
        },
        "type" : [
          {
            "code" : "string"
          }
        ],
        "isModifier" : false
      },
      {
        "id" : "DV_QUANTITY.normal-status",
        "path" : "DV_QUANTITY.normal_status",
        "short" : "Optional normal status indicator of value with respect to normal range for this value.",
        "definition" : "Optional normal status indicator of value with respect to normal range for this value. Often included by lab, even if the normal range itself is not included. Coded by ordinals in series HHH, HH, H, (nothing), L, LL, LLL; see openEHR terminology group  `normal_status`.",
        "min" : 0,
        "max" : "1",
        "base" : {
          "path" : "DV_ORDERED.normal_status",
          "min" : 0,
          "max" : "1"
        },
        "type" : [
          {
            "code" : "http://openehr.org/fhir/StructureDefinition/CODE-PHRASE"
          }
        ],
        "isModifier" : false
      },
      {
        "id" : "DV_QUANTITY.normal-range",
        "path" : "DV_QUANTITY.normal_range",
        "short" : "Optional normal range.",
        "definition" : "Optional normal range. ",
        "min" : 0,
        "max" : "1",
        "base" : {
          "path" : "DV_ORDERED.normal_range",
          "min" : 0,
          "max" : "1"
        },
        "type" : [
          {
            "extension" : [
              {
                "extension" : [
                  {
                    "url" : "name",
                    "valueCode" : "T"
                  },
                  {
                    "url" : "type",
                    "valueUri" : "http://openehr.org/fhir/StructureDefinition/DV-QUANTITY"
                  }
                ],
                "url" : "http://hl7.org/fhir/tools/StructureDefinition/type-parameter"
              }
            ],
            "code" : "http://openehr.org/fhir/StructureDefinition/DV-INTERVAL"
          }
        ],
        "isModifier" : false
      },
      {
        "id" : "DV_QUANTITY.other-reference-ranges",
        "path" : "DV_QUANTITY.other_reference_ranges",
        "short" : "Optional tagged other reference ranges for this value in its particular measurement context.",
        "definition" : "Optional tagged other reference ranges for this value in its particular measurement context.",
        "min" : 0,
        "max" : "*",
        "base" : {
          "path" : "DV_ORDERED.other_reference_ranges",
          "min" : 0,
          "max" : "*"
        },
        "type" : [
          {
            "extension" : [
              {
                "extension" : [
                  {
                    "url" : "name",
                    "valueCode" : "T"
                  },
                  {
                    "url" : "type",
                    "valueUri" : "http://openehr.org/fhir/StructureDefinition/DV-QUANTITY"
                  }
                ],
                "url" : "http://hl7.org/fhir/tools/StructureDefinition/type-parameter"
              }
            ],
            "code" : "http://openehr.org/fhir/StructureDefinition/REFERENCE-RANGE"
          }
        ],
        "isModifier" : false
      },
      {
        "id" : "DV_QUANTITY.magnitude-status",
        "path" : "DV_QUANTITY.magnitude_status",
        "short" : "Optional status of magnitude with values: \n\n* `\"=\"`   :   magnitude is a point value \n* `\"<\"`   :   value is < magnitude \n* `\">\"`   :   value is > magnitude \n* `\"<=\"` : value is <= magnitude \n* `\">=\"` : value is >= magnitude \n* `\"~\"`   :   value is approximately magnitude \n\nIf not present, assumed meaning is  `\"=\"` .",
        "definition" : "Optional status of magnitude with values: \n\n* `\"=\"`   :   magnitude is a point value \n* `\"<\"`   :   value is < magnitude \n* `\">\"`   :   value is > magnitude \n* `\"<=\"` : value is <= magnitude \n* `\">=\"` : value is >= magnitude \n* `\"~\"`   :   value is approximately magnitude \n\nIf not present, assumed meaning is  `\"=\"` .",
        "min" : 0,
        "max" : "1",
        "base" : {
          "path" : "DV_QUANTIFIED.magnitude_status",
          "min" : 0,
          "max" : "1"
        },
        "type" : [
          {
            "code" : "string"
          }
        ],
        "isModifier" : false
      },
      {
        "id" : "DV_QUANTITY.accuracy",
        "path" : "DV_QUANTITY.accuracy",
        "short" : "Accuracy of measurement, expressed either as a half-range percent value (`_accuracy_is_percent_` = `True`) or a half-range quantity.",
        "definition" : "Accuracy of measurement, expressed either as a half-range percent value (`_accuracy_is_percent_` = `True`) or a half-range quantity. A value of `0` means that accuracy is 100%, i.e. no error.\n\nA value of `_unknown_accuracy_value_` means that accuracy was not recorded.",
        "min" : 0,
        "max" : "1",
        "base" : {
          "path" : "DV_QUANTIFIED.accuracy",
          "min" : 0,
          "max" : "1"
        },
        "type" : [
          {
            "code" : "decimal"
          }
        ],
        "isModifier" : false
      },
      {
        "id" : "DV_QUANTITY.accuracy-is-percent",
        "path" : "DV_QUANTITY.accuracy_is_percent",
        "short" : "If `True`, indicates that when this object was created, `_accuracy_` was recorded as a percent value; if `False`, as an absolute quantity value.",
        "definition" : "If `True`, indicates that when this object was created, `_accuracy_` was recorded as a percent value; if `False`, as an absolute quantity value.",
        "min" : 0,
        "max" : "1",
        "base" : {
          "path" : "DV_AMOUNT.accuracy_is_percent",
          "min" : 0,
          "max" : "1"
        },
        "type" : [
          {
            "code" : "boolean"
          }
        ],
        "isModifier" : false
      },
      {
        "id" : "DV_QUANTITY.magnitude",
        "path" : "DV_QUANTITY.magnitude",
        "short" : "Numeric magnitude of the quantity.",
        "definition" : "Numeric magnitude of the quantity.",
        "min" : 1,
        "max" : "1",
        "base" : {
          "path" : "DV_QUANTITY.magnitude",
          "min" : 1,
          "max" : "1"
        },
        "type" : [
          {
            "code" : "decimal"
          }
        ],
        "isModifier" : false
      },
      {
        "id" : "DV_QUANTITY.precision",
        "path" : "DV_QUANTITY.precision",
        "short" : "Precision to which the value of the quantity is expressed, in terms of number of decimal places.",
        "definition" : "Precision to which the value of the quantity is expressed, in terms of number of decimal places. The value 0 implies an integral quantity.\nThe value -1 implies no limit, i.e. any number of decimal places.",
        "min" : 0,
        "max" : "1",
        "base" : {
          "path" : "DV_QUANTITY.precision",
          "min" : 0,
          "max" : "1"
        },
        "type" : [
          {
            "code" : "integer"
          }
        ],
        "isModifier" : false
      },
      {
        "id" : "DV_QUANTITY.units",
        "path" : "DV_QUANTITY.units",
        "short" : "Quantity units, expressed as a code or syntax string from either UCUM (the default) or the units system specified in `_units_system_`, when set.",
        "definition" : "Quantity units, expressed as a code or syntax string from either UCUM (the default) or the units system specified in `_units_system_`, when set.\n\nIn either case, the value is the code or syntax - normally formed of standard ASCII - which is in principal not the same as the display string, although in simple cases such as 'm' (for meters) it will be.\n\nIf the `_units_display_name_` field is set, this may be used for display. If not, the implementations must effect the resolution of the `_units_` value to a display form locally, e.g. by lookup of reference tables, request to a terminology service etc.\n\nExample values from UCUM: \"kg/m^2\", “mm[Hg]\", \"ms-1\", \"km/h\".",
        "min" : 1,
        "max" : "1",
        "base" : {
          "path" : "DV_QUANTITY.units",
          "min" : 1,
          "max" : "1"
        },
        "type" : [
          {
            "code" : "string"
          }
        ],
        "isModifier" : false
      },
      {
        "id" : "DV_QUANTITY.units-system",
        "path" : "DV_QUANTITY.units_system",
        "short" : "Optional field used to specify a units system from which codes in `_units_` are defined.",
        "definition" : "Optional field used to specify a units system from which codes in `_units_` are defined. Value is a URI identifying a terminology containing units concepts from the  (https://www.hl7.org/fhir/terminologies-systems.html[HL7 FHIR terminologies list]).\n\nIf not set, the UCUM standard (case-sensitive codes) is assumed as the units system.",
        "min" : 0,
        "max" : "1",
        "base" : {
          "path" : "DV_QUANTITY.units_system",
          "min" : 0,
          "max" : "1"
        },
        "type" : [
          {
            "code" : "string"
          }
        ],
        "isModifier" : false
      },
      {
        "id" : "DV_QUANTITY.units-display-name",
        "path" : "DV_QUANTITY.units_display_name",
        "short" : "Optional field containing the displayable form of the `_units_` field, e.",
        "definition" : "Optional field containing the displayable form of the `_units_` field, e.g. `'°C'`.\n\nIf not set, the application environment needs to determine the displayable form.\n\nNOTE: The display name may be language-dependent for various older and non-systematic units. For this reason, it is not recommended to add unit display names to archetypes, only to templates (for localisation purposes).",
        "min" : 0,
        "max" : "1",
        "base" : {
          "path" : "DV_QUANTITY.units_display_name",
          "min" : 0,
          "max" : "1"
        },
        "type" : [
          {
            "code" : "string"
          }
        ],
        "isModifier" : false
      }
    ]
  },
  "differential" : {
    "element" : [
      {
        "id" : "DV_QUANTITY",
        "path" : "DV_QUANTITY",
        "short" : "Quantitified type representing  scientific  quantities, i.",
        "definition" : "Quantitified type representing  scientific  quantities, i.e. quantities expressed as a magnitude and units. Units are expressed in the UCUM syntax (http://unitsofmeasure.org/ucum.html[Unified Code for Units of Measure (UCUM)], by Gunther Schadow and Clement J. McDonald of The Regenstrief Institute)  (case-sensitive form) by default, or another system if `_units_system_` is set. \n\nCan also be used for time durations, where it is more convenient to treat these as simply a number of seconds rather than days, months, years (in the latter case, `DV_DURATION` may be used).",
        "min" : 0,
        "max" : "*",
        "isModifier" : false
      },
      {
        "id" : "DV_QUANTITY.magnitude",
        "path" : "DV_QUANTITY.magnitude",
        "short" : "Numeric magnitude of the quantity.",
        "definition" : "Numeric magnitude of the quantity.",
        "min" : 1,
        "max" : "1",
        "type" : [
          {
            "code" : "decimal"
          }
        ],
        "isModifier" : false
      },
      {
        "id" : "DV_QUANTITY.precision",
        "path" : "DV_QUANTITY.precision",
        "short" : "Precision to which the value of the quantity is expressed, in terms of number of decimal places.",
        "definition" : "Precision to which the value of the quantity is expressed, in terms of number of decimal places. The value 0 implies an integral quantity.\nThe value -1 implies no limit, i.e. any number of decimal places.",
        "min" : 0,
        "max" : "1",
        "type" : [
          {
            "code" : "integer"
          }
        ],
        "isModifier" : false
      },
      {
        "id" : "DV_QUANTITY.units",
        "path" : "DV_QUANTITY.units",
        "short" : "Quantity units, expressed as a code or syntax string from either UCUM (the default) or the units system specified in `_units_system_`, when set.",
        "definition" : "Quantity units, expressed as a code or syntax string from either UCUM (the default) or the units system specified in `_units_system_`, when set.\n\nIn either case, the value is the code or syntax - normally formed of standard ASCII - which is in principal not the same as the display string, although in simple cases such as 'm' (for meters) it will be.\n\nIf the `_units_display_name_` field is set, this may be used for display. If not, the implementations must effect the resolution of the `_units_` value to a display form locally, e.g. by lookup of reference tables, request to a terminology service etc.\n\nExample values from UCUM: \"kg/m^2\", “mm[Hg]\", \"ms-1\", \"km/h\".",
        "min" : 1,
        "max" : "1",
        "type" : [
          {
            "code" : "string"
          }
        ],
        "isModifier" : false
      },
      {
        "id" : "DV_QUANTITY.normal-range",
        "path" : "DV_QUANTITY.normal_range",
        "short" : "Optional normal range.",
        "definition" : "Optional normal range. ",
        "min" : 0,
        "max" : "1",
        "type" : [
          {
            "extension" : [
              {
                "extension" : [
                  {
                    "url" : "name",
                    "valueCode" : "T"
                  },
                  {
                    "url" : "type",
                    "valueUri" : "http://openehr.org/fhir/StructureDefinition/DV-QUANTITY"
                  }
                ],
                "url" : "http://hl7.org/fhir/tools/StructureDefinition/type-parameter"
              }
            ],
            "code" : "http://openehr.org/fhir/StructureDefinition/DV-INTERVAL"
          }
        ],
        "isModifier" : false
      },
      {
        "id" : "DV_QUANTITY.other-reference-ranges",
        "path" : "DV_QUANTITY.other_reference_ranges",
        "short" : "Optional tagged other reference ranges for this value in its particular measurement context.",
        "definition" : "Optional tagged other reference ranges for this value in its particular measurement context.",
        "min" : 0,
        "max" : "*",
        "type" : [
          {
            "extension" : [
              {
                "extension" : [
                  {
                    "url" : "name",
                    "valueCode" : "T"
                  },
                  {
                    "url" : "type",
                    "valueUri" : "http://openehr.org/fhir/StructureDefinition/DV-QUANTITY"
                  }
                ],
                "url" : "http://hl7.org/fhir/tools/StructureDefinition/type-parameter"
              }
            ],
            "code" : "http://openehr.org/fhir/StructureDefinition/REFERENCE-RANGE"
          }
        ],
        "isModifier" : false
      },
      {
        "id" : "DV_QUANTITY.units-system",
        "path" : "DV_QUANTITY.units_system",
        "short" : "Optional field used to specify a units system from which codes in `_units_` are defined.",
        "definition" : "Optional field used to specify a units system from which codes in `_units_` are defined. Value is a URI identifying a terminology containing units concepts from the  (https://www.hl7.org/fhir/terminologies-systems.html[HL7 FHIR terminologies list]).\n\nIf not set, the UCUM standard (case-sensitive codes) is assumed as the units system.",
        "min" : 0,
        "max" : "1",
        "type" : [
          {
            "code" : "string"
          }
        ],
        "isModifier" : false
      },
      {
        "id" : "DV_QUANTITY.units-display-name",
        "path" : "DV_QUANTITY.units_display_name",
        "short" : "Optional field containing the displayable form of the `_units_` field, e.",
        "definition" : "Optional field containing the displayable form of the `_units_` field, e.g. `'°C'`.\n\nIf not set, the application environment needs to determine the displayable form.\n\nNOTE: The display name may be language-dependent for various older and non-systematic units. For this reason, it is not recommended to add unit display names to archetypes, only to templates (for localisation purposes).",
        "min" : 0,
        "max" : "1",
        "type" : [
          {
            "code" : "string"
          }
        ],
        "isModifier" : false
      }
    ]
  }
}