FQL is a query language that allows you to retrieve, filter and project data from any data source containing FHIR Resources. It brings the power of three existing languages together: SQL, JSON and FhirPath. It allows you to create tables and is useful for gaining insight and perform quality control.
| Name | Flags | Card. | Type | Description & Constraints |
|---|---|---|---|---|
  EnrollmentRequest | Σ | 0..* | DomainResource | Enrollment request |
  id | Σ | 0..1 | id | Logical id of this artifact |
| meta | Σ | 0..1 | Meta | Metadata about the resource |
| implicitRules | ?! Σ | 0..1 | uri | A set of rules under which this content was created |
| language | 0..1 | code | Language of the resource content Binding: http://tools.ietf.org/html/bcp47 (required) | |
| text | I | 0..1 | Narrative | Text summary of the resource, for human interpretation |
| contained | 0..* | Resource | Contained, inline Resources | |
 extension | 0..* | Extension | Additional Content defined by implementations | |
| modifierExtension | ?! | 0..* | Extension | Extensions that cannot be ignored |
| identifier | Σ | 0..* | Identifier | Business Identifier |
| ruleset | Σ | 0..1 | Coding | Resource version Binding: http://hl7.org/fhir/ValueSet/ruleset (example) |
| originalRuleset | Σ | 0..1 | Coding | Original version Binding: http://hl7.org/fhir/ValueSet/ruleset (example) |
| created | Σ | 0..1 | dateTime | Creation date |
 target | Σ | 0..1 | Reference(Organization) | Insurer |
| provider | Σ | 0..1 | Reference(Practitioner) | Responsible practitioner |
| organization | Σ | 0..1 | Reference(Organization) | Responsible organization |
| subject | Σ | 1..1 | Reference(Patient) | The subject of the Products and Services |
| coverage | Σ | 1..1 | Reference(Coverage) | Insurance information |
 relationship | Σ | 1..1 | Coding | Patient relationship to subscriber Binding: http://hl7.org/fhir/ValueSet/relationship (example) |
| Documentation for this format | ||||