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Narrative

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Source1

{
  "resourceType": "CodeSystem",
  "id": "KGL1Predicates",
  "text": {
    "status": "generated",
    "div": "<!-- snip (see above) -->"
  },
  "url": "http://smart.who.int/base/CodeSystem/KGL1Predicates",
  "version": "0.3.0",
  "name": "KGL1Predicates",
  "title": "Knowledge graph L1: predicates",
  "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 predicates of the L1 layer. An edge's `predicate` is one of these; which (source, target) pairs each licenses is the layer's edge table. Source: kg/src/L1.ts (migrated from smart-kg ontology/L1/L1.json).",
  "caseSensitive": true,
  "content": "complete",
  "count": 19,
  "concept": [
    {
      "code": "contains",
      "display": "contains",
      "definition": "Structural containment. A publication contains sections; a section contains recommendations."
    },
    {
      "code": "supersedes",
      "display": "supersedes",
      "definition": "This publication replaces that one. Guideline updates are the reason impact analysis matters."
    },
    {
      "code": "refines",
      "display": "refines",
      "definition": "A recommendation narrows or conditions another, rather than replacing it."
    },
    {
      "code": "hasPopulation",
      "display": "hasPopulation",
      "definition": "PICO."
    },
    {
      "code": "hasIntervention",
      "display": "hasIntervention",
      "definition": "PICO."
    },
    {
      "code": "hasComparator",
      "display": "hasComparator",
      "definition": "PICO."
    },
    {
      "code": "hasOutcome",
      "display": "hasOutcome",
      "definition": "PICO."
    },
    {
      "code": "supportedBy",
      "display": "supportedBy",
      "definition": "Recommendation to its body of evidence, carrying GRADE certainty."
    },
    {
      "code": "hasRemark",
      "display": "hasRemark",
      "definition": "Implementation consideration. Often the part a DAK author actually acts on."
    },
    {
      "code": "recommends",
      "display": "recommends",
      "definition": "A recommendation is about a health intervention. The hinge to L2."
    },
    {
      "code": "definedIn",
      "display": "definedIn",
      "definition": "A schedule or indicator is normatively defined in a publication."
    },
    {
      "code": "schedules",
      "display": "schedules",
      "definition": "A schedule entry prescribes when an intervention is delivered."
    },
    {
      "code": "measures",
      "display": "measures",
      "definition": "An indicator measures delivery of an intervention."
    },
    {
      "code": "derivedFrom",
      "display": "derivedFrom",
      "definition": "This normative content restates or operationalises that recommendation."
    },
    {
      "code": "crossReferences",
      "display": "crossReferences",
      "definition": "Names an external code. THE ONLY edge into terminology: it records that a code was cited, never what the code means. See the terminology-code class."
    },
    {
      "code": "classifiedAs",
      "display": "classifiedAs",
      "definition": "Placement in a WHO classification — CDHI for interventions. Also a cross-reference, kept separate because classification is an assertion about the thing, not a mention of a code."
    },
    {
      "code": "appearsIn",
      "display": "appearsIn",
      "definition": "A citation string appears in an L2 or L3 artefact at a stated location."
    },
    {
      "code": "resolvesTo",
      "display": "resolvesTo",
      "definition": "A citation string resolves to a publication or a recommendation. Almost always `inferred` or `decided`, never `derived` — matching a free-text citation is a judgement."
    },
    {
      "code": "implementedBy",
      "display": "implementedBy",
      "definition": "L1 content is implemented by an L2 or L3 artefact, addressed by canonical URL. The graph does not model the target's structure."
    }
  ]
}