Using CQL With FHIR
3.0.0-ballot - STU 3 Ballot

Using CQL With FHIR - Downloaded Version null See the Directory of published versions

## CodeSystem: Selectivity Form Code System

Official URL: http://hl7.org/fhir/uv/cql/CodeSystem/selectivity-form | Version: 3.0.0-ballot | Highlight text changes?
Standards status: Trial-use | Maturity Level: 1 | Computable Name: SelectivityForm
Other Identifiers: OID:2.16.840.1.113883.4.642.40.37.16.5

Codes representing the form of the description of the selectivity of an expression, either conjunctive or disjunctive.

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

- Selectivity Form Value Set

Profile: Shareable CodeSystem

This case-sensitive code system `http://hl7.org/fhir/uv/cql/CodeSystem/selectivity-form` defines the following codes:

Code | Display | Definition
total | Total | Indicates the query selectivity completely covers the criteria in the query (i.e. the query is in CNF/DNF, and all terms are sargeable).
conjunctive | Conjunctive | Indicates the query selectivity represents criteria in Conjunctive Normal Form (CNF) (i.e. a conjunction of disjunctions).
disjunctive | Disjunctive | Indicates the query selectivity represents criteria in Disjunctive Normal Form (DNF) (i.e. a disjunction of conjunctions).

Description of the above table(s).