import { CodeableConcept } from './CodeableConcept.js';
import { Extension } from './Extension.js';
import { FhirPrimitive } from './FhirPrimitive.js';
import { Quantity } from './Quantity.js';
import { Range } from './Range.js';
export interface Observation_ReferenceRange {
    /**
     * @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 The value of the low bound of the reference range.  The low bound of the reference range endpoint is inclusive of the value (e.g.  reference range is >=5 - <=9). If the low bound is omitted,  it is assumed to be meaningless (e.g. reference range is <=2.3).
     * @short Low Range, if relevant
     */
    low?: Quantity;
    /**
     * @description The value of the high bound of the reference range.  The high bound of the reference range endpoint is inclusive of the value (e.g.  reference range is >=5 - <=9). If the high bound is omitted,  it is assumed to be meaningless (e.g. reference range is >= 2.3).
     * @short High Range, if relevant
     */
    high?: Quantity;
    /**
     * @description The value of the normal value of the reference range.
     * @short Normal value, if relevant
     */
    normalValue?: CodeableConcept;
    /**
     * @description Codes to indicate the what part of the targeted reference population it applies to. For example, the normal or therapeutic range.
     * @comment This SHOULD be populated if there is more than one range.  If this element is not present then the normal range is assumed.
     * @short Reference range qualifier
     */
    type?: CodeableConcept;
    /**
     * @description Codes to indicate the target population this reference range applies to.  For example, a reference range may be based on the normal population or a particular sex or race.  Multiple `appliesTo`  are interpreted as an "AND" of the target populations.  For example, to represent a target population of African American females, both a code of female and a code for African American would be used.
     * @comment This SHOULD be populated if there is more than one range.  If this element is not present then the normal population is assumed.
     * @short Reference range population
     */
    appliesTo?: CodeableConcept[];
    /**
     * @description The age at which this reference range is applicable. This is a neonatal age (e.g. number of weeks at term) if the meaning says so.
     * @short Applicable age range, if relevant
     */
    age?: Range;
    /**
     * @description Text based reference range in an observation which may be used when a quantitative range is not appropriate for an observation.  An example would be a reference value of "Negative" or a list or table of "normals".
     * @short Text based reference range in an observation
     */
    text?: FhirPrimitive<string>;
}
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