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Narrative

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Source1

{
  "resourceType": "CodeSystem",
  "id": "KGL1Classes",
  "text": {
    "status": "generated",
    "div": "<!-- snip (see above) -->"
  },
  "url": "http://smart.who.int/base/CodeSystem/KGL1Classes",
  "version": "0.3.0",
  "name": "KGL1Classes",
  "title": "Knowledge graph L1: classes",
  "status": "active",
  "experimental": false,
  "date": "2026-10-06T14:15:03+00:00",
  "publisher": "WHO",
  "contact": [
    {
      "name": "WHO",
      "telecom": [
        {
          "system": "url",
          "value": "http://who.int"
        }
      ]
    }
  ],
  "description": "The classes of the L1 layer of the SMART Guidelines knowledge graph. A node's `type` is one of these. Source: kg/src/L1.ts (migrated from smart-kg ontology/L1/L1.json).",
  "caseSensitive": true,
  "content": "complete",
  "count": 16,
  "concept": [
    {
      "code": "publication",
      "display": "Publication",
      "definition": "A WHO normative publication: a guideline, guidance, recommendation summary, or classification. Metadata follows Dublin Core, which HealthInterventions already uses."
    },
    {
      "code": "publication-section",
      "display": "Publication section",
      "definition": "A chapter, annex or numbered section. Recommendations are located by section and page, which is what makes an extraction checkable."
    },
    {
      "code": "recommendation",
      "display": "Recommendation",
      "definition": "The atomic normative statement. This is the node nothing in the WHO estate currently makes addressable."
    },
    {
      "code": "remark",
      "display": "Remark",
      "definition": "An implementation consideration attached to a recommendation. Grounded: the BCG table's first annotationEntry carries exactly this — \"Neonates born to women of unknown HIV status should be vaccinated as the benefits…\" — clinical nuance that shapes the decision logic but is not the recommendation itself."
    },
    {
      "code": "evidence",
      "display": "Evidence",
      "definition": "The body of evidence behind a recommendation, with its GRADE certainty rating."
    },
    {
      "code": "population",
      "display": "Population",
      "definition": "PICO P."
    },
    {
      "code": "intervention",
      "display": "Intervention",
      "definition": "PICO I. The clinical or public-health action, distinct from health-intervention, which is the DAK-facing component."
    },
    {
      "code": "comparator",
      "display": "Comparator",
      "definition": "PICO C. Frequently absent in WHO recommendations; absence is recorded rather than invented."
    },
    {
      "code": "outcome",
      "display": "Outcome",
      "definition": "PICO O."
    },
    {
      "code": "health-intervention",
      "display": "Health intervention",
      "definition": "What a recommendation is about, and the hinge to L2. Corresponds to the DAK component smart-base defines as HealthInterventions — today `id`, `description[x]` and `reference 1..* DublinCore`, i.e. a bibliographic citation with no recommendation behind it. This class is what that citation should resolve to."
    },
    {
      "code": "schedule",
      "display": "Schedule",
      "definition": "A normative delivery schedule. Grounded: the BCG table cites \"WHO recommendations for routine immunization – summary tables\", which IS a schedule publication — the single most-cited L1 source in the immunization DAK."
    },
    {
      "code": "schedule-entry",
      "display": "Schedule entry",
      "definition": "One row of a schedule: which intervention, for whom, when, how many doses. This is the granularity a decision table actually consumes — the BCG rules turn on dose count, age and interval since a live vaccine."
    },
    {
      "code": "indicator",
      "display": "Indicator",
      "definition": "A programme indicator defined normatively at L1. Distinct from the DAK's ProgramIndicator component, which is its L2 expression; that model already carries `references 0..* id` pointing at health intervention ids."
    },
    {
      "code": "terminology-code",
      "display": "Terminology code",
      "definition": "A code in an external terminology — ICD-10, ICD-11, SNOMED CT, ATC, or a WHO classification such as CDHI. CROSS-REFERENCE ONLY. It records system, code and display, and asserts NOTHING about the terminology: no hierarchy, no subsumption, no synonyms, no post-coordination. The terminology has its own authority, its own release cycle and its own tooling, and a partial copy here would be wrong within one release. Resolve meaning against the terminology server, not against this graph."
    },
    {
      "code": "citation",
      "display": "Citation",
      "definition": "A citation string exactly as it appears in an L2 or L3 artefact, together with what it was resolved to. Grounded directly in the BCG table, where every rule's annotationEntry[1] reads \"WHO recommendations for routine immunization – summary tables (March 2023) (1)\" — a citation that no tool can currently follow. This class is where that string becomes a link, and where the fact that resolving it was a judgement gets recorded."
    },
    {
      "code": "external-artifact",
      "display": "External artefact",
      "definition": "An L2 or L3 artefact addressed by canonical URL — a BPMN process, a DMN decision table, a FHIR PlanDefinition. Deliberately opaque: it carries an IRI and a free-text kind, and this graph asserts nothing about its internal structure. That opacity is the boundary. The L2 and L3 subgraphs model those artefacts properly; L1 only needs to point."
    }
  ]
}