No narrative is provided for definitional resources. A human-readable rendering can be found in the implementation guide(s) where this resource is used.
 <status value="draft" /> <publisher value="Nictiz" /> <contact> <name value="Nictiz" /> <telecom> <system value="url" /> <value value="https://www.nictiz.nl" /> <use value="work" /> </telecom> </contact> <description value="The extent of a burn wound is indicated in a percentage of the ‘Total Body Surface Area’ (TBSA)." /> <purpose value="This Observation resource represents the Extent concept of the Dutch [zib ('Zorginformatiebouwsteen', i.e. Health and Care Information Model) Burnwound v3.4 (2020)](https://zibs.nl/wiki/Burnwound-v3.4(2020EN))." /> <copyright value="Copyright and related rights waived via CC0, https://creativecommons.org/publicdomain/zero/1.0/. This does not apply to information from third parties, for example a medical terminology system. The implementer alone is responsible for identifying and obtaining any necessary licenses or authorizations to utilize third party IP in connection with the specification or otherwise." /> <fhirVersion value="4.0.1" /> <mapping> <identity value="zib-burnwound-v3.4-2020EN" /> <uri value="https://zibs.nl/wiki/Burnwound-v3.4(2020EN)" /> <name value="zib Burnwound-v3.4(2020EN)" /> </mapping> <kind value="resource" /> <abstract value="true" /> <type value="Observation" /> <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Observation" /> <derivation value="constraint" /> <differential> <element id="Observation"> <path value="Observation" /> <comment value="This Observation resource represents the Extent concept (NL-CM:19.4.7) of zib Burnwound. It is usually part of an assessment, which is represented using the [zib-wounds.WoundCharacteristics](http://nictiz.nl/fhir/StructureDefinition/zib-wounds.WoundCharacteristics) profile. See the comment on the root of that profile for guidance on using this resource." /> </element> <element id="Observation.code"> <path value="Observation.code" /> <patternCodeableConcept> <coding> <system value="http://snomed.info/sct" /> <code value="360531000146101" /> </coding> </patternCodeableConcept> </element> <element id="Observation.value[x]"> <path value="Observation.value[x]" /> <short value="Extent" /> <definition value="The extent of a burn wound is indicated in a percentage of the ‘Total Body Surface Area’ (TBSA). For adults, the TBSA can be calculated on the basis of the ‘rule of nines’, in which body parts are expressed in the percentage 9 and multiples of 9. This ‘rule of nines’ cannot be used for children because a child’s body proportions are different from those of an adult. For children, separate tables were developed per age group to determine the extent of burn wounds. Another option is measuring the extent using the patient’s hand surface area. The surface area of a patient’s hand (including the fingers) equals approximately 1% of their total body surface area. (Source: Brandwonden genezen. Hoe verder? [Healing Burn Wounds. What now?)" /> <alias value="Uitgebreidheid" /> <type> <code value="Quantity" /> </type> <mapping> <identity value="zib-burnwound-v3.4-2020EN" /> <map value="NL-CM:19.4.7" /> <comment value="Extent" /> </mapping> </element> </differential> </StructureDefinition>