This is a HL7 FHIR server, and as you appear to be accessing this page from a web browser you are seeing a HTML version of the requested resource(s). You can also access this URL from a FHIR client as a ReSTful API call. For more details please see the HL7 FHIR specification.
<?xml version="1.0" encoding="UTF-8" standalone="no"?><CodeSystem xmlns="">
   <id value="CareConnect-ObservationInterpretation-1"/>
   <url value=""/>
   <version value="1.0.0"/>
   <name value="Care Connect Observation Interpretation"/>
   <status value="active"/>
   <date value="2021-04-28T00:00:00+00:00"/>
   <publisher value="HL7 UK"/>
   <description value="A CodeSystem that identifies the assessment made based on the result of the observation. The code is taken from the oid 2.16.840.1.113883."/>
   <copyright value="Copyright © 2021 HL7 UK"/>
   <caseSensitive value="true"/>
   <content value="complete"/>
      <code value="PA"/>
      <display value="Potentially abnormal"/>