EHDS openEHR data exchange
0.1.0 - ci-build
EHDS openEHR data exchange
0.1.0 - ci-build
EHDS openEHR data exchange, published by Ian. 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/freshehr/EHDS-openEHR-FHIR-IG/ and changes regularly. See the Directory of published versions
| Draft as of 2026-03-25 |
XML representation of the DvInterval-DvQuantity logical model.
<StructureDefinition xmlns="http://hl7.org/fhir">
<id value="DvInterval-DvQuantity"/>
<text>
<status value="extensions"/>
<div xmlns="http://www.w3.org/1999/xhtml"><p class="res-header-id"><b>Generated Narrative: StructureDefinition DvInterval-DvQuantity</b></p><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 & 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_bck0.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-DvInterval-DvQuantity-definitions.html#DvInterval-DvQuantity" title="openEHR Quantity">DvInterval-DvQuantity</a><a name="DvInterval-DvQuantity"> </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"><span style="opacity: 0.5">0</span><span style="opacity: 0.5">..</span><span style="opacity: 0.5">*</span></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="https://specifications.openehr.org/releases/RM/Release-1.1.0/data_types.html#_dv_quantity_class">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">Quantity<br/><br/>Elements defined in Ancestors:<a href="https://specifications.openehr.org/releases/BASE/latest/foundation_types.html#_any_class" title="Carriage return character.">CR</a>, <a href="https://specifications.openehr.org/releases/BASE/latest/foundation_types.html#_any_class" title="Line feed character.">LF</a>, <a href="https://specifications.openehr.org/releases/BASE/latest/foundation_types.html#_any_class" 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="https://specifications.openehr.org/releases/RM/Release-1.1.0/data_types.html#_dv_ordered_class" 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="https://specifications.openehr.org/releases/RM/Release-1.1.0/data_types.html#_dv_ordered_class" title="Optional normal range. ">normal_range</a>, <a href="https://specifications.openehr.org/releases/RM/Release-1.1.0/data_types.html#_dv_ordered_class" title="Optional tagged other reference ranges for this value in its particular measurement context.">other_reference_ranges</a>, <a href="https://specifications.openehr.org/releases/RM/Release-1.1.0/data_types.html#_dv_quantified_class" title="Optional status of magnitude with values:
* `"="` : magnitude is a point value
* `"<"` : value is < magnitude
* `">"` : value is > magnitude
* `"<="` : value is <= magnitude
* `">="` : value is >= magnitude
* `"~"` : value is approximately magnitude
If not present, assumed meaning is `"="` .
">magnitude_status</a>, <a href="https://specifications.openehr.org/releases/RM/Release-1.1.0/data_types.html#_dv_quantified_class" title="Accuracy of measurement. Exact form of expression determined in descendants.">accuracy</a>, <a href="https://specifications.openehr.org/releases/RM/Release-1.1.0/data_types.html#_dv_amount_class" 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="https://specifications.openehr.org/releases/RM/Release-1.1.0/data_types.html#_dv_amount_class" 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.
A value of `_unknown_accuracy_value_` means that accuracy was not recorded.">accuracy</a>, <a href="https://specifications.openehr.org/releases/RM/Release-1.1.0/data_types.html#_dv_quantity_class" title="Numeric magnitude of the quantity.">magnitude</a>, <a href="https://specifications.openehr.org/releases/RM/Release-1.1.0/data_types.html#_dv_quantity_class" 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.
The value -1 implies no limit, i.e. any number of decimal places.">precision</a>, <a href="https://specifications.openehr.org/releases/RM/Release-1.1.0/data_types.html#_dv_quantity_class" 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.
In 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.
If 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.
Example values from UCUM: "kg/m^2", “mm[Hg]", "ms-1", "km/h".">units</a>, <a href="https://specifications.openehr.org/releases/RM/Release-1.1.0/data_types.html#_dv_quantity_class" title="Optional normal range. ">normal_range</a>, <a href="https://specifications.openehr.org/releases/RM/Release-1.1.0/data_types.html#_dv_quantity_class" title="Optional tagged other reference ranges for this value in its particular measurement context.">other_reference_ranges</a>, <a href="https://specifications.openehr.org/releases/RM/Release-1.1.0/data_types.html#_dv_quantity_class" 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]).
If not set, the UCUM standard (case-sensitive codes) is assumed as the units system.">units_system</a>, <a href="https://specifications.openehr.org/releases/RM/Release-1.1.0/data_types.html#_dv_quantity_class" title="Optional field containing the displayable form of the `_units_` field, e.g. `'°C'`.
If not set, the application environment needs to determine the displayable form.
NOTE: 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></td></tr>
<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>
</text>
<extension url="http://hl7.org/fhir/tools/StructureDefinition/web-source">
<valueUrl
value="https://specifications.openehr.org/releases/RM/Release-1.1.0/data_types.html#_dv_quantity_class"/>
</extension>
<extension
url="http://hl7.org/fhir/tools/StructureDefinition/type-operation">
<valueCanonical value="#add"/>
</extension>
<extension
url="http://hl7.org/fhir/tools/StructureDefinition/type-operation">
<valueCanonical value="#subtract"/>
</extension>
<extension
url="http://hl7.org/fhir/tools/StructureDefinition/type-operation">
<valueCanonical value="#multiply"/>
</extension>
<extension
url="http://hl7.org/fhir/tools/StructureDefinition/type-operation">
<valueCanonical value="#less_than"/>
</extension>
<extension
url="http://hl7.org/fhir/tools/StructureDefinition/type-operation">
<valueCanonical value="#is_integral"/>
</extension>
<extension
url="http://hl7.org/fhir/tools/StructureDefinition/type-operation">
<valueCanonical value="#is_strictly_comparable_to"/>
</extension>
<extension url="http://hl7.org/fhir/tools/StructureDefinition/view-hint">
<valueCode value="element-view-as-leaf"/>
</extension>
<extension url="http://hl7.org/fhir/tools/StructureDefinition/view-hint">
<valueCode value="element-view-defns-parent"/>
</extension>
<extension url="http://hl7.org/fhir/tools/StructureDefinition/view-hint">
<valueCode value="element-view-replace-cardinality"/>
</extension>
<extension url="http://hl7.org/fhir/tools/StructureDefinition/view-hint">
<valueCode value="element-view-as-leaf"/>
</extension>
<extension url="http://hl7.org/fhir/tools/StructureDefinition/view-hint">
<valueCode value="element-view-defns-parent"/>
</extension>
<extension url="http://hl7.org/fhir/tools/StructureDefinition/view-hint">
<valueCode value="element-view-replace-cardinality"/>
</extension>
<url
value="https://ianbennett.github.io/ExampleIG_Ian/StructureDefinition/DvInterval-DvQuantity"/>
<version value="0.1.0"/>
<name value="DvIntervalDvQuantity"/>
<status value="draft"/>
<date value="2026-03-25T15:55:34+00:00"/>
<publisher value="Ian"/>
<contact>
<name value="Ian"/>
<telecom>
<system value="url"/>
<value value="http://example.org/example-publisher"/>
</telecom>
</contact>
<fhirVersion value="4.0.1"/>
<mapping>
<identity value="rim"/>
<uri value="http://hl7.org/v3"/>
<name value="RIM Mapping"/>
</mapping>
<kind value="logical"/>
<abstract value="false"/>
<type
value="https://ianbennett.github.io/ExampleIG_Ian/StructureDefinition/DvInterval-DvQuantity"/>
<baseDefinition
value="http://openehr.org/fhir/StructureDefinition/DV-QUANTITY"/>
<derivation value="specialization"/>
<snapshot>
<extension
url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version">
<valueString value="0.1.0-snapshot"/>
</extension>
<element id="DvInterval-DvQuantity">
<path value="DvInterval-DvQuantity"/>
<short value="Quantity"/>
<definition value="openEHR Quantity"/>
<min value="0"/>
<max value="*"/>
<base>
<path value="Base"/>
<min value="0"/>
<max value="*"/>
</base>
<constraint>
<key value="Other_reference_ranges_validity"/>
<severity value="error"/>
<human value="Other reference ranges validity must be present"/>
<expression
value="other_reference_ranges.exists() implies other_reference_ranges.empty().not()"/>
<source
value="http://openehr.org/fhir/StructureDefinition/DV-ORDERED"/>
</constraint>
<constraint>
<key value="Is_simple_validity"/>
<severity value="error"/>
<human
value="Is simple validity must satisfy conditional constraints"/>
<expression
value="(normal_range .empty() and other_reference_ranges .empty()) implies is_simple()"/>
<source
value="http://openehr.org/fhir/StructureDefinition/DV-ORDERED"/>
</constraint>
<constraint>
<key value="Normal_range_and_status_consistency"/>
<severity value="error"/>
<human value="Normal range and status consistency must be present"/>
<expression
value="(normal_range.exists() and normal_status.exists()) implies (normal_status.code_string.is_equal (“N”) xor normal_range.not().has (self))"/>
<source
value="http://openehr.org/fhir/StructureDefinition/DV-ORDERED"/>
</constraint>
<constraint>
<key value="Magnitude_status_valid"/>
<severity value="error"/>
<human value="Magnitude status valid must be present"/>
<expression
value="magnitude_status.exists() implies valid_magnitude_status() (magnitude_status)"/>
<source
value="http://openehr.org/fhir/StructureDefinition/DV-QUANTIFIED"/>
</constraint>
<constraint>
<key value="Accuracy_is_percent_validity"/>
<severity value="error"/>
<human
value="Accuracy is percent validity must satisfy conditional constraints"/>
<expression value="accuracy = 0 implies accuracy_is_percent.not()"/>
<source
value="http://openehr.org/fhir/StructureDefinition/DV-AMOUNT"/>
</constraint>
<constraint>
<key value="Accuracy_validity"/>
<severity value="error"/>
<human
value="Accuracy validity must satisfy conditional constraints"/>
<expression
value="accuracy_is_percent implies valid_percentage() (accuracy)"/>
<source
value="http://openehr.org/fhir/StructureDefinition/DV-AMOUNT"/>
</constraint>
<isModifier value="false"/>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
</element>
<element id="DvInterval-DvQuantity.CR">
<path value="DvInterval-DvQuantity.CR"/>
<short value="Carriage return character."/>
<definition value="Carriage return character."/>
<min value="1"/>
<max value="1"/>
<base>
<path value="BASIC_DEFINITIONS.CR"/>
<min value="1"/>
<max value="1"/>
</base>
<type>
<code value="string"/>
</type>
<isModifier value="false"/>
</element>
<element id="DvInterval-DvQuantity.LF">
<path value="DvInterval-DvQuantity.LF"/>
<short value="Line feed character."/>
<definition value="Line feed character."/>
<min value="1"/>
<max value="1"/>
<base>
<path value="BASIC_DEFINITIONS.LF"/>
<min value="1"/>
<max value="1"/>
</base>
<type>
<code value="string"/>
</type>
<isModifier value="false"/>
</element>
<element id="DvInterval-DvQuantity.Local-terminology-id">
<path value="DvInterval-DvQuantity.Local_terminology_id"/>
<short value="Predefined terminology identifier"/>
<definition
value="Predefined terminology identifier to indicate it is local to the knowledge resource in which it occurs, e.g. an archetype"/>
<min value="1"/>
<max value="1"/>
<base>
<path value="OPENEHR_DEFINITIONS.Local_terminology_id"/>
<min value="1"/>
<max value="1"/>
</base>
<type>
<code value="string"/>
</type>
<isModifier value="false"/>
</element>
<element id="DvInterval-DvQuantity.normal-status">
<path value="DvInterval-DvQuantity.normal_status"/>
<short
value="Optional normal status indicator of value with respect to normal range for this value."/>
<definition
value="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 value="0"/>
<max value="1"/>
<base>
<path value="DV_ORDERED.normal_status"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code
value="http://openehr.org/fhir/StructureDefinition/CODE-PHRASE"/>
</type>
<isModifier value="false"/>
</element>
<element id="DvInterval-DvQuantity.normal-range">
<path value="DvInterval-DvQuantity.normal_range"/>
<short value="Optional normal range."/>
<definition value="Optional normal range."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="DV_ORDERED.normal_range"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<extension
url="http://hl7.org/fhir/tools/StructureDefinition/type-parameter">
<extension url="name">
<valueCode value="T"/>
</extension>
<extension url="type">
<valueUri
value="http://openehr.org/fhir/StructureDefinition/DV-QUANTITY"/>
</extension>
</extension>
<code
value="http://openehr.org/fhir/StructureDefinition/DV-INTERVAL"/>
</type>
<isModifier value="false"/>
</element>
<element id="DvInterval-DvQuantity.other-reference-ranges">
<path value="DvInterval-DvQuantity.other_reference_ranges"/>
<short
value="Optional tagged other reference ranges for this value in its particular measurement context."/>
<definition
value="Optional tagged other reference ranges for this value in its particular measurement context."/>
<min value="0"/>
<max value="*"/>
<base>
<path value="DV_ORDERED.other_reference_ranges"/>
<min value="0"/>
<max value="*"/>
</base>
<type>
<extension
url="http://hl7.org/fhir/tools/StructureDefinition/type-parameter">
<extension url="name">
<valueCode value="T"/>
</extension>
<extension url="type">
<valueUri
value="http://openehr.org/fhir/StructureDefinition/DV-QUANTITY"/>
</extension>
</extension>
<code
value="http://openehr.org/fhir/StructureDefinition/REFERENCE-RANGE"/>
</type>
<isModifier value="false"/>
</element>
<element id="DvInterval-DvQuantity.magnitude-status">
<path value="DvInterval-DvQuantity.magnitude_status"/>
<short
value="Optional status of magnitude with values:
* `"="` : magnitude is a point value
* `"<"` : value is < magnitude
* `">"` : value is > magnitude
* `"<="` : value is <= magnitude
* `">="` : value is >= magnitude
* `"~"` : value is approximately magnitude
If not present, assumed meaning is `"="` ."/>
<definition
value="Optional status of magnitude with values:
* `"="` : magnitude is a point value
* `"<"` : value is < magnitude
* `">"` : value is > magnitude
* `"<="` : value is <= magnitude
* `">="` : value is >= magnitude
* `"~"` : value is approximately magnitude
If not present, assumed meaning is `"="` ."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="DV_QUANTIFIED.magnitude_status"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="string"/>
</type>
<isModifier value="false"/>
</element>
<element id="DvInterval-DvQuantity.accuracy">
<path value="DvInterval-DvQuantity.accuracy"/>
<short
value="Accuracy of measurement, expressed either as a half-range percent value (`_accuracy_is_percent_` = `True`) or a half-range quantity."/>
<definition
value="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.
A value of `_unknown_accuracy_value_` means that accuracy was not recorded."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="DV_QUANTIFIED.accuracy"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="decimal"/>
</type>
<isModifier value="false"/>
</element>
<element id="DvInterval-DvQuantity.accuracy-is-percent">
<path value="DvInterval-DvQuantity.accuracy_is_percent"/>
<short
value="If `True`, indicates that when this object was created, `_accuracy_` was recorded as a percent value; if `False`, as an absolute quantity value."/>
<definition
value="If `True`, indicates that when this object was created, `_accuracy_` was recorded as a percent value; if `False`, as an absolute quantity value."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="DV_AMOUNT.accuracy_is_percent"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="boolean"/>
</type>
<isModifier value="false"/>
</element>
<element id="DvInterval-DvQuantity.magnitude">
<path value="DvInterval-DvQuantity.magnitude"/>
<short value="Numeric magnitude of the quantity."/>
<definition value="Numeric magnitude of the quantity."/>
<min value="1"/>
<max value="1"/>
<base>
<path value="DV_QUANTITY.magnitude"/>
<min value="1"/>
<max value="1"/>
</base>
<type>
<code value="decimal"/>
</type>
<isModifier value="false"/>
</element>
<element id="DvInterval-DvQuantity.precision">
<path value="DvInterval-DvQuantity.precision"/>
<short
value="Precision to which the value of the quantity is expressed, in terms of number of decimal places."/>
<definition
value="Precision to which the value of the quantity is expressed, in terms of number of decimal places. The value 0 implies an integral quantity.
The value -1 implies no limit, i.e. any number of decimal places."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="DV_QUANTITY.precision"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="integer"/>
</type>
<isModifier value="false"/>
</element>
<element id="DvInterval-DvQuantity.units">
<path value="DvInterval-DvQuantity.units"/>
<short
value="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
value="Quantity units, expressed as a code or syntax string from either UCUM (the default) or the units system specified in `_units_system_`, when set.
In 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.
If 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.
Example values from UCUM: "kg/m^2", “mm[Hg]", "ms-1", "km/h"."/>
<min value="1"/>
<max value="1"/>
<base>
<path value="DV_QUANTITY.units"/>
<min value="1"/>
<max value="1"/>
</base>
<type>
<code value="string"/>
</type>
<isModifier value="false"/>
</element>
<element id="DvInterval-DvQuantity.units-system">
<path value="DvInterval-DvQuantity.units_system"/>
<short
value="Optional field used to specify a units system from which codes in `_units_` are defined."/>
<definition
value="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]).
If not set, the UCUM standard (case-sensitive codes) is assumed as the units system."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="DV_QUANTITY.units_system"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="string"/>
</type>
<isModifier value="false"/>
</element>
<element id="DvInterval-DvQuantity.units-display-name">
<path value="DvInterval-DvQuantity.units_display_name"/>
<short
value="Optional field containing the displayable form of the `_units_` field, e."/>
<definition
value="Optional field containing the displayable form of the `_units_` field, e.g. `'°C'`.
If not set, the application environment needs to determine the displayable form.
NOTE: 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 value="0"/>
<max value="1"/>
<base>
<path value="DV_QUANTITY.units_display_name"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="string"/>
</type>
<isModifier value="false"/>
</element>
</snapshot>
<differential>
<element id="DvInterval-DvQuantity">
<path value="DvInterval-DvQuantity"/>
<short value="Quantity"/>
<definition value="openEHR Quantity"/>
</element>
</differential>
</StructureDefinition>
IG © 2026+ Ian. Package openehr.ehds.fhir.dataexchange#0.1.0 based on FHIR 4.0.1. Generated 2026-03-25
Links:
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QA Report
The Xt-EHR action is co-funded by the European Union, EU4Health Program 2021-2027, under Grant Agreement Nr.º 101128085.
