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.
<CodeSystem xmlns="http://hl7.org/fhir">
   <id value="CareConnect-DischargeMethod-1"></id>
   <text>
      <status value="generated"></status>
   </text>
   <extension url="http://hl7.org/fhir/StructureDefinition/codesystem-sourceReference">
      <valueUri value="http://www.datadictionary.nhs.uk/data_dictionary/attributes/d/disc/discharge_method_de.asp?shownav=1"></valueUri>
   </extension>
   <url value="https://fhir.hl7.org.uk/STU3/CodeSystem/CareConnect-DischargeMethod-1"></url>
   <version value="1.1.0"></version>
   <name value="NHS Data Model and Dictionary Discharge Method"></name>
   <status value="draft"></status>
   <date value="2018-11-14T00:00:00+00:00"></date>
   <publisher value="HL7 UK"></publisher>
   <description value="The method of discharge from a Hospital Provider Spell."></description>
   <copyright value="Copyright © 2016 HL7 UK"></copyright>
   <content value="complete"></content>
   <concept>
      <code value="1"></code>
      <display value="Patient discharged on clinical advice or with clinical consent"></display>
   </concept>
   <concept>
      <code value="2"></code>
      <display value="Patient discharged him/herself or was discharged by a relative or advocate"></display>
   </concept>
   <concept>
      <code value="3"></code>
      <display value="Patient discharged by mental health review tribunal, Home Secretary or Court"></display>
   </concept>
   <concept>
      <code value="4"></code>
      <display value="Patient died"></display>
   </concept>
   <concept>
      <code value="5"></code>
      <display value="Stillbirth"></display>
   </concept>
   <concept>
      <code value="6"></code>
      <display value="Patient discharged him/herself"></display>
      <definition value="National Codes 6 and 7 have been introduced for the Mental Health Services Data Set only to add further granularity to National Code 2. However, National Code 2 is still valid for the Mental Health Services Data Set where extra detail cannot be collected. National Codes 6 and 7 are NOT valid in any other data set including Commissioning Data Set version 6-2."></definition>
   </concept>
   <concept>
      <code value="7"></code>
      <display value="Patient discharged by a relative or advocate"></display>
      <definition value="National Codes 6 and 7 have been introduced for the Mental Health Services Data Set only to add further granularity to National Code 2. However, National Code 2 is still valid for the Mental Health Services Data Set where extra detail cannot be collected. National Codes 6 and 7 are NOT valid in any other data set including Commissioning Data Set version 6-2."></definition>
   </concept>
</CodeSystem>