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 |
|---|---|---|---|---|
  Group | I | 0..* | DomainResource | Group of multiple entities grp-1: Can only have members if group is "actual" |
  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 | Unique id |
| type | Σ | 1..1 | code | person | animal | practitioner | device | medication | substance Binding: http://hl7.org/fhir/ValueSet/group-type (required) |
| actual | Σ I | 1..1 | boolean | Descriptive or actual |
| code | Σ | 0..1 | CodeableConcept | Kind of Group members Binding: (unbound) (example) |
| name | Σ | 0..1 | string | Label for Group |
| quantity | Σ | 0..1 | unsignedInt | Number of members |
 characteristic | 0..* | BackboneElement | Trait of group members | |
 id | 0..1 | id | xml:id (or equivalent in JSON) | |
| extension | 0..* | Extension | Additional Content defined by implementations | |
| modifierExtension | ?! | 0..* | Extension | Extensions that cannot be ignored |
| code | 1..1 | CodeableConcept | Kind of characteristic Binding: (unbound) (example) | |
 value[x] | 1..1 | CodeableConcept, boolean, Quantity, Range | Value held by characteristic Binding: (unbound) (example) | |
| exclude | ?! | 1..1 | boolean | Group includes or excludes |
 period | 0..1 | Period | Period over which characteristic is tested | |
| member | I | 0..* | BackboneElement | Who or what is in group |
 id | 0..1 | id | xml:id (or equivalent in JSON) | |
| extension | 0..* | Extension | Additional Content defined by implementations | |
| modifierExtension | ?! | 0..* | Extension | Extensions that cannot be ignored |
 entity | 1..1 | Reference(Patient | Practitioner | Device | Medication | Substance) | Reference to the group member | |
| period | 0..1 | Period | Period member belonged to the group | |
| inactive | 0..1 | boolean | If member is no longer in group | |
| Documentation for this format | ||||