{
  "resourceType": "CodeSystem",
  "status": "draft",
  "content": "complete",
  "name": "NexusCompositionTypeCS",
  "id": "nexus-composition-type",
  "title": "Nexus Composition Type CodeSystem",
  "description": "Summary kinds this estate produces for which LOINC has no concept.\n\nUsed on `Composition.category`, alongside LOINC, as a refinement of the class `Composition.type`\ncarries. **Despite this system's name, its codes are not written to `Composition.type`** -- that\nelement carries one of three LOINC class codes, see `nexus-emr-composition-classification`. The name\nis historical and is kept because renaming a published code system breaks stored codings.\n\nA generated day-sheet summary is `type` = LOINC 34133-9 \"Summary of episode note\" and `category` =\n`nexus-daysheet-summary`.",
  "url": "https://fhir.apps.health/CodeSystem/nexus-composition-type",
  "concept": [
    {
      "code": "nexus-daysheet-summary",
      "display": "Day-sheet summary",
      "definition": "A summary generated ahead of a clinic day for a booked patient, covering what a provider should know before the visit. Class: LOINC 34133-9. Regenerated when its inputs change, so it is a current view rather than a record of a moment."
    },
    {
      "code": "nexus-interval-summary",
      "display": "Interval summary",
      "definition": "A summary of what happened to a patient between two points in time -- typically since the last visit. Class: LOINC 34133-9. Distinguished from a day-sheet summary by covering an INTERVAL rather than preparing for an appointment; there may be no upcoming visit at all."
    },
    {
      "code": "nexus-encounter-recap",
      "display": "Encounter recap",
      "definition": "A summary of a SINGLE encounter, generated after it. Class: LOINC 34133-9. Not interchangeable with the other two: a recap asserts that the encounter it covers took place, which neither of the others does."
    },
    {
      "code": "nexus-letter-template",
      "display": "Letter template",
      "definition": "A stored template a letter is composed from, rather than a letter sent about a patient. Minted so that the retired `http://services.well.com/fhir/categories/letter-template` category has a home on this guide's own base if one turns out to still be needed. Templates are modelled as `List` as of 1.21.0, so a producer should check whether it needs this code at all before using it."
    }
  ],
  "experimental": false,
  "caseSensitive": true,
  "count": 4
}