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 |
|---|---|---|---|---|
  OperationOutcome | Σ | 0..* | DomainResource | Information about the success/failure of an action |
  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 |
  issue | Σ | 1..* | BackboneElement | A single issue associated with the action |
 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 |
| severity | ?! Σ | 1..1 | code | fatal | error | warning | information Binding: http://hl7.org/fhir/ValueSet/issue-severity (required) |
| code | Σ | 1..1 | code | Error or warning code Binding: http://hl7.org/fhir/ValueSet/issue-type (required) |
| details | Σ | 0..1 | CodeableConcept | Additional details about the error Binding: http://hl7.org/fhir/ValueSet/operation-outcome (example) |
| diagnostics | Σ | 0..1 | string | Additional diagnostic information about the issue |
| location | Σ | 0..* | string | XPath of element(s) related to issue |
| Documentation for this format | ||||