<?xml version="1.0" encoding="UTF-8"?><CodeSystem xmlns="http://hl7.org/fhir"><id value="rcFB"/><text><status value="generated"/><div xmlns="http://www.w3.org/1999/xhtml"><p class="res-header-id"><b>Generated Narrative: CodeSystem rcFB</b></p><a name="rcFB"> </a><a name="hcrcFB"> </a><a name="rcFB-en-US"> </a><p>This case-sensitive code system <code>http://terminology.hl7.org/CodeSystem/rcFB</code> defines codes, but no codes are represented here</p></div></text><url value="http://terminology.hl7.org/CodeSystem/rcFB"/><identifier><system value="urn:ietf:rfc:3986"/><value value="urn:oid:2.16.840.1.113883.6.28"/></identifier><version value="2.0.1"/><name value="RcFB"/><title value="The Read Codes Four Byte Set:"/><status value="retired"/><experimental value="false"/><date value="2021-11-09T10:00:00+10:00"/><publisher value="TBD - External Body"/><contact><name value="Paul Frosdick, NHS Information Authority"/></contact><description value="The Read Codes Four Byte Set consists of 4 alphanumeric characters. This version contains approximately 40,000 codes arranged in a hierarchical structure.&#xD;&#xA;&#xD;&#xA;Top level hierarchy sections: Disorders Findings Surgical procedures Investigations Occupations Drugs"/><caseSensitive value="true"/><content value="not-present"/></CodeSystem>