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	<h3>Address extensions</h3>
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	<p>The Address extensions provide additional information about a patient's address, as the fact that it is an official address, or more structured information about the address itself.</p>
	<p>This profile doesn't explicitly list all of them, but only those that are <strong>explicitly listed in the <a href="https://www.xt-ehr.eu/fhir/models/0.3.0/StructureDefinition-EHDSAddress.html">EHDS Address model</a></strong>.</p>
	<p>Examples of extensions not included, but used in several jurisdictions are:</p>
	<ul>
		<li><a href="http://hl7.org/fhir/StructureDefinition/iso21090-ADXP-buildingNumberSuffix">ADXPBuildingNumberSuffix</a></li>
		<li><a href="http://hl7.org/fhir/StructureDefinition/iso21090-ADXP-additionalLocator">ADXPAdditionalLocator</a></li>
		<li><a href="http://hl7.org/fhir/StructureDefinition/iso21090-ADXP-unitID">ADXPUnitID</a></li>
	</ul>
	<p>Implementers should refer to the HL7 FHIR specification for guidance on the use of these extensions.</p>
	<p>Please note that the fact they are not included in the differential doesn't preclude their use in a compliant instance.</p>
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