import { CodeableConcept } from './CodeableConcept.js';
import { Extension } from './Extension.js';
import { FhirPrimitive } from './FhirPrimitive.js';
export interface ResearchSubject_Progress {
    /**
     * @description Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
     * @short Unique id for inter-element referencing
     */
    id?: string;
    /**
     * @description May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
     * @comment There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
     * @short Additional content defined by implementations
     */
    extension?: Extension[];
    /**
     * @description May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained andor the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.
  
  Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).
     * @comment There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
     * @short Extensions that cannot be ignored even if unrecognized
     */
    modifierExtension?: Extension[];
    /**
     * @description Identifies the aspect of the subject's journey that the state refers to.
     * @short state | milestone
     */
    type?: CodeableConcept;
    /**
     * @description The current state of the subject.
     * @short candidate | eligible | follow-up | ineligible | not-registered | off-study | on-study | on-study-intervention | on-study-observation | pending-on-study | potential-candidate | screening | withdrawn
     */
    subjectState?: CodeableConcept;
    /**
     * @description The milestones the subject has passed through.
     * @comment There can be multiple entries but it is also valid to just have the most recent.  This should npt be rlied upon as the full path the subject has taken.
     * @short SignedUp | Screened | Randomized
     */
    milestone?: CodeableConcept;
    /**
     * @description The reason for the state change.  If coded it should follow the formal subject state model.
     * @short State change reason
     */
    reason?: CodeableConcept;
    /**
     * @description The date when the new status started.
     * @comment This is NOT the date the change in state was recorded.
     * @short State change date
     */
    startDate?: FhirPrimitive<string>;
    /**
     * @description The date when the state ended.
     * @short State change date
     */
    endDate?: FhirPrimitive<string>;
}
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