{
  "resourceType": "CodeSystem",
  "status": "draft",
  "content": "complete",
  "name": "HrmReportClassCS",
  "id": "hrm-report-class",
  "title": "HRM Report Class CodeSystem",
  "description": "The report classification carried in an inbound Health Report Manager message, preserved on\n`DiagnosticReport.category`.\n\n**Written alongside an HL7 v2-0074 coding, not instead of one.** A report that states its class\ncarries both codings; one that states no class carries neither, and `category` is absent. Prefer\n`http://terminology.hl7.org/CodeSystem/v2-0074` unless you need what it cannot express: three of\nthe six classes here -- a consultant report, a medical records report and an other letter -- all\nmap to `OTH`, and the distinction is unrecoverable from the v2 coding alone.\n\n**TWO WARNINGS ABOUT THE v2-0074 CODING THIS ESTATE ACTUALLY WRITES**, both of which a consumer\nhas to know before trusting it. Neither is a property of this code system; both describe the\ncompanion coding beside it, and both are being corrected in the producer.\n\n*Its `display` is not v2-0074's.* The converter writes this system's own class name into the\n`display` of the v2-0074 coding -- so a reader meets `{system: v2-0074, code: \"RAD\", display:\n\"DiagnosticImagingReport\"}`, where v2-0074's own display for `RAD` is *Radiology*. R4 defines\n`Coding.display` as a representation of the meaning of the code **in the system that declares it**,\nso a terminology service asked to validate that coding rejects it. Read the v2-0074 `code`; do not\nread, match on, or re-publish its `display`.\n\n*`CardioRespiratoryReport` is coded `CUS`, which is narrower than the class.* v2-0074's `CUS` is\n*Cardiac Ultrasound*, one modality. This class covers a cardiology **or respiratory** study, and\nv2-0074 spreads that across at least `CUS`, `CTH` (cardiac catheterization), `EC` (electrocardiac),\n`PF` (pulmonary function) and `RES` (respiratory care) -- it has no single code for the class. So\n`CUS` on one of these reports is not evidence that an ultrasound was performed. This is the fourth\nclass whose v2 coding loses information, and the sharpest: the other three collapse into `OTH`,\nwhich claims nothing, while this one asserts something specific and wrong.\n\n**The code is the unspaced form; the display carries the spaced form.** `ConsultantReport` is the\ncode, `Consultant Report` is the display. Match the code.\n\n**Content is `complete`.** The six classes below are the whole classification the source message\nschema defines, not a sample of what has been observed.\n\n**Nexus EMR writes this today at `http://services.well.com/fhir/CodeSystem/hrm-report-class`\n(FHIR-372)**: it is live in stored `category` codings and in code, and is under migration to the\ncanonical declared here. Write the canonical; expect both until the migration completes. The two\nshare their final segment, so a reader may match on it, but matching both addresses exactly is\nsafer and is what the handbook's Canonical URLs page lists.",
  "url": "https://fhir.apps.health/CodeSystem/hrm-report-class",
  "concept": [
    {
      "code": "DiagnosticImagingReport",
      "display": "Diagnostic Imaging Report",
      "definition": "An imaging report. Also coded `RAD` in HL7 v2-0074 on the same `category`."
    },
    {
      "code": "DiagnosticTestReport",
      "display": "Diagnostic Test Report",
      "definition": "A diagnostic test result. Also coded `LAB` in HL7 v2-0074 on the same `category`."
    },
    {
      "code": "CardioRespiratoryReport",
      "display": "Cardio Respiratory Report",
      "definition": "A cardiology or respiratory study. Coded `CUS` in HL7 v2-0074 on the same `category` -- but `CUS` is *Cardiac Ultrasound*, one modality, and this class also covers catheterization, electrocardiac studies, pulmonary function and respiratory care. v2-0074 has no code for the class, so do not read `CUS` here as evidence that an ultrasound was performed."
    },
    {
      "code": "ConsultantReport",
      "display": "Consultant Report",
      "definition": "A consultant's report or letter back to the referring clinician. Also coded `OTH` in HL7 v2-0074, which does not distinguish it from a medical records report or an other letter -- this code is the only place the distinction survives."
    },
    {
      "code": "MedicalRecordsReport",
      "display": "Medical Records Report",
      "definition": "A release from a medical records department. Also coded `OTH` in HL7 v2-0074, which does not distinguish it from a consultant report or an other letter."
    },
    {
      "code": "OtherLetter",
      "display": "Other Letter",
      "definition": "Correspondence that is none of the above. Also coded `OTH` in HL7 v2-0074, which does not distinguish it from a consultant report or a medical records report."
    }
  ],
  "experimental": false,
  "caseSensitive": true,
  "copyright": "The system URI, the code values and their definitions in this artifact are defined by this specification. The classification they preserve is OntarioMD's, published as part of the Health Report Manager CDS specification, and its wording and membership are OntarioMD's to change. The six classes here are transcribed from that specification so that an inbound message can be represented without loss; they are NOT AN OFFICIAL VERSION of it, are not maintained against OntarioMD's revision cycle, and the specification in force governs. Nothing here asserts a licence over the source classification.",
  "count": 6
}