# Selectivity Coverage Code System - Using CQL With FHIR v3.0.0-ballot

## CodeSystem: Selectivity Coverage Code System 

 
Codes representing the coverage level of the description of the selectivity of an expression, total, partial, or non. 

This Code system is referenced in the definition of the following value sets:

* [Selectivity Coverage Value Set](ValueSet-selectivity-coverage.md)

-------

 [Description of the above table(s)](http://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#terminology). 



## Resource Content

```json
{
  "resourceType" : "CodeSystem",
  "id" : "selectivity-coverage",
  "meta" : {
    "profile" : ["http://hl7.org/fhir/StructureDefinition/shareablecodesystem"]
  },
  "extension" : [{
    "url" : "http://hl7.org/fhir/StructureDefinition/cqf-knowledgeCapability",
    "valueCode" : "shareable"
  },
  {
    "url" : "http://hl7.org/fhir/StructureDefinition/cqf-knowledgeCapability",
    "valueCode" : "computable"
  },
  {
    "url" : "http://hl7.org/fhir/StructureDefinition/cqf-knowledgeCapability",
    "valueCode" : "publishable"
  },
  {
    "url" : "http://hl7.org/fhir/StructureDefinition/cqf-knowledgeRepresentationLevel",
    "valueCode" : "structured"
  },
  {
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
    "valueCode" : "trial-use"
  },
  {
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
    "valueInteger" : 1
  },
  {
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
    "valueCode" : "cds"
  }],
  "url" : "http://hl7.org/fhir/uv/cql/CodeSystem/selectivity-coverage",
  "identifier" : [{
    "system" : "urn:ietf:rfc:3986",
    "value" : "urn:oid:2.16.840.1.113883.4.642.40.37.16.4"
  }],
  "version" : "3.0.0-ballot",
  "name" : "SelectivityCoverage",
  "title" : "Selectivity Coverage Code System",
  "status" : "active",
  "experimental" : false,
  "date" : "2026-04-24",
  "publisher" : "HL7 International / Clinical Decision Support",
  "contact" : [{
    "telecom" : [{
      "system" : "url",
      "value" : "http://www.hl7.org/Special/committees/dss"
    }]
  }],
  "description" : "Codes representing the coverage level of the description of the selectivity of an expression, total, partial, or non.",
  "jurisdiction" : [{
    "coding" : [{
      "system" : "http://unstats.un.org/unsd/methods/m49/m49.htm",
      "code" : "001",
      "display" : "World"
    }]
  }],
  "caseSensitive" : true,
  "valueSet" : "http://hl7.org/fhir/uv/cql/ValueSet/selectivity-coverage",
  "content" : "complete",
  "concept" : [{
    "code" : "total",
    "display" : "Total",
    "definition" : "Indicates the query selectivity completely covers the criteria in the query (i.e. the query is in CNF/DNF, and all terms are sargeable)."
  },
  {
    "code" : "partial",
    "display" : "Partial",
    "definition" : "Indicates the query selectivity partially covers the criteria in the query (i.e. the query is in CNF/DNF, but not all terms are sargeable)."
  },
  {
    "code" : "non",
    "display" : "Non",
    "definition" : "Indicates the query selectivity cannot be determined for the query (i.e. the query is not in CNF/DNF)."
  }]
}

```
