{
  "resourceType" : "CodeSystem",
  "id" : "chf-codes",
  "language" : "en",
  "text" : {
    "status" : "generated",
    "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p class=\"res-header-id\"><b>Generated Narrative: CodeSystem chf-codes</b></p><a name=\"chf-codes\"> </a><a name=\"hcchf-codes\"> </a><p>This case-sensitive code system <code>http://hl7.org/fhir/uv/sdc/CodeSystem/chf-codes</code> defines the following codes:</p><table class=\"codes\"><tr><td style=\"white-space:nowrap\"><b>Code</b></td><td><b>Display</b></td><td><b>Definition</b></td></tr><tr><td style=\"white-space:nowrap\">body-weight-change<a name=\"chf-codes-body-weight-change\"> </a></td><td>Body weight change</td><td>The change in body weight between two body weight measurements, in kg. Typically captured daily.</td></tr><tr><td style=\"white-space:nowrap\">net-intake-output<a name=\"chf-codes-net-intake-output\"> </a></td><td>Net intake/output</td><td>The net intake and output, in Liters per day. Typically captured daily.</td></tr><tr><td style=\"white-space:nowrap\">measure-jvp<a name=\"chf-codes-measure-jvp\"> </a></td><td>Measure jugular venous pressure</td><td>Measure jugular venous pressure in cmH2O</td></tr><tr><td style=\"white-space:nowrap\">jvp<a name=\"chf-codes-jvp\"> </a></td><td>Jugular venous pressure</td><td>Jugular venous pressure in cmH2O. May be loinc#8595-1?</td></tr><tr><td style=\"white-space:nowrap\">egfr<a name=\"chf-codes-egfr\"> </a></td><td>eGFR result</td><td>eGFR result in mol/mm/m2. Too many codes to choose from, needs clinical/terminological SME input</td></tr><tr><td style=\"white-space:nowrap\">measure-egfr<a name=\"chf-codes-measure-egfr\"> </a></td><td>Measure eGFR</td><td>Measure eGFR, could not identify SNOMED code for this</td></tr><tr><td style=\"white-space:nowrap\">lasix-iv<a name=\"chf-codes-lasix-iv\"> </a></td><td>LASIX IV</td><td>LASIX IV</td></tr><tr><td style=\"white-space:nowrap\">lasix-po<a name=\"chf-codes-lasix-po\"> </a></td><td>LASIX PO</td><td>LASIX PO</td></tr><tr><td style=\"white-space:nowrap\">cardiology-consultation<a name=\"chf-codes-cardiology-consultation\"> </a></td><td>Cardiology Consultation</td><td>Cardiology consultation</td></tr></table></div>"
  },
  "extension" : [{
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
    "valueCode" : "fhir"
  },
  {
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
    "valueCode" : "informative",
    "_valueCode" : {
      "extension" : [{
        "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom",
        "valueCanonical" : "http://hl7.org/fhir/uv/sdc/ImplementationGuide/hl7.fhir.uv.sdc"
      }]
    }
  }],
  "url" : "http://hl7.org/fhir/uv/sdc/CodeSystem/chf-codes",
  "identifier" : [{
    "system" : "urn:ietf:rfc:3986",
    "value" : "urn:oid:2.16.840.1.113883.4.642.40.17.16.3"
  }],
  "version" : "4.0.0",
  "name" : "CHFCodes",
  "title" : "CHF Codes",
  "status" : "active",
  "experimental" : true,
  "date" : "2026-03-24T16:31:45+11:00",
  "publisher" : "HL7 International / FHIR Infrastructure",
  "contact" : [{
    "name" : "HL7 International / FHIR Infrastructure",
    "telecom" : [{
      "system" : "url",
      "value" : "http://www.hl7.org/Special/committees/fiwg"
    }]
  },
  {
    "telecom" : [{
      "system" : "url",
      "value" : "http://www.hl7.org/Special/committees/fiwg"
    }]
  }],
  "description" : "Codes used in the congestive heart failure pathway. Ideally these shouldn't exist, but where I couldn't find an appropriate code in a standard terminology, I defined codes here.",
  "jurisdiction" : [{
    "coding" : [{
      "system" : "http://unstats.un.org/unsd/methods/m49/m49.htm",
      "code" : "001",
      "display" : "World"
    }]
  }],
  "caseSensitive" : true,
  "content" : "complete",
  "count" : 9,
  "concept" : [{
    "code" : "body-weight-change",
    "display" : "Body weight change",
    "definition" : "The change in body weight between two body weight measurements, in kg. Typically captured daily."
  },
  {
    "code" : "net-intake-output",
    "display" : "Net intake/output",
    "definition" : "The net intake and output, in Liters per day. Typically captured daily."
  },
  {
    "code" : "measure-jvp",
    "display" : "Measure jugular venous pressure",
    "definition" : "Measure jugular venous pressure in cmH2O"
  },
  {
    "code" : "jvp",
    "display" : "Jugular venous pressure",
    "definition" : "Jugular venous pressure in cmH2O. May be loinc#8595-1?"
  },
  {
    "code" : "egfr",
    "display" : "eGFR result",
    "definition" : "eGFR result in mol/mm/m2. Too many codes to choose from, needs clinical/terminological SME input"
  },
  {
    "code" : "measure-egfr",
    "display" : "Measure eGFR",
    "definition" : "Measure eGFR, could not identify SNOMED code for this"
  },
  {
    "code" : "lasix-iv",
    "display" : "LASIX IV",
    "definition" : "LASIX IV"
  },
  {
    "code" : "lasix-po",
    "display" : "LASIX PO",
    "definition" : "LASIX PO"
  },
  {
    "code" : "cardiology-consultation",
    "display" : "Cardiology Consultation",
    "definition" : "Cardiology consultation"
  }]
}