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 |
|---|---|---|---|---|
  DomainResource | I | 0..* | Resource | A resource with narrative, extensions, and contained resources dom-4: If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated dom-3: If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource dom-2: If the resource is contained in another resource, it SHALL NOT contain nested Resources dom-1: If the resource is contained in another resource, it SHALL NOT contain any narrative |
  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 |
| Documentation for this format | ||||