import { Extension } from './Extension.js';
import { FhirPrimitive } from './FhirPrimitive.js';
export interface Coding {
    /**
     * @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 The identification of the code system that defines the meaning of the symbol in the code.
     * @comment The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...).  OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should be an absolute reference to some definition that establishes the system clearly and unambiguously.
     * @short Identity of the terminology system
     */
    system?: FhirPrimitive<string>;
    /**
     * @description The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged.
     * @comment Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date.
     * @short Version of the system - if relevant
     */
    version?: FhirPrimitive<string>;
    /**
     * @description A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination).
     * @short Symbol in syntax defined by the system
     */
    code?: FhirPrimitive<string>;
    /**
     * @description A representation of the meaning of the code in the system, following the rules of the system.
     * @short Representation defined by the system
     */
    display?: FhirPrimitive<string>;
    /**
     * @description Indicates that this coding was chosen by a user directly - e.g. off a pick list of available items (codes or displays).
     * @comment Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely.
     * @short If this coding was chosen directly by the user
     */
    userSelected?: FhirPrimitive<boolean>;
}
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