HL7 Czech Imaging Order IG
0.0.3 - ci-build
HL7 Czech Imaging Order IG
0.0.3 - ci-build
HL7 Czech Imaging Order IG, published by HL7 Czech Republic. This guide is not an authorized publication; it is the continuous build for version 0.0.3 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7-cz/img-order/ and changes regularly. See the Directory of published versions
| Page standards status: Draft | Maturity Level: 1 |
Definitions for the ImageOrderInformationCz logical model.
Guidance on how to interpret the contents of this table can be foundhere
| 0. ImageOrderInformationCz | |
| Definition | Information about order and order reason |
| Short | A.2.1 - Order information and A.2.2 - Order reason |
| Control | 0..* |
| Is Modifier | false |
| Logical Model | Instances of this logical model are not marked to be the target of a Reference |
| 2. ImageOrderInformationCz.orderDetails | |
| Definition | Order information could respond to multiple test orders |
| Short | A.2.1 - Order information |
| Control | 0..* |
| Type | BackboneElement |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) |
| 4. ImageOrderInformationCz.orderDetails.id | |
| Definition | 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 |
| Control | 0..1 |
| Type | string |
| Is Modifier | false |
| XML Format | In the XML format, this property is represented as an attribute. |
| Summary | false |
| 6. ImageOrderInformationCz.orderDetails.extension | |
| Definition | 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 manageable, 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. |
| Short | Additional content defined by implementations |
| Comments | 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. |
| Control | 0..* |
| Type | Extension |
| Is Modifier | false |
| Summary | false |
| Alternate Names | extensions, user content |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists()) |
| Slicing | This element introduces a set of slices on ImageOrderInformationCz.orderDetails.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators: |
| 8. ImageOrderInformationCz.orderDetails.modifierExtension | |
| Definition | 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 and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, 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). |
| Short | Extensions that cannot be ignored even if unrecognized |
| Comments | 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. |
| Control | 0..* |
| Type | Extension |
| Is Modifier | true because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them |
| Summary | true |
| Requirements | Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions. Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions. |
| Alternate Names | extensions, user content, modifiers |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists()) |
| 10. ImageOrderInformationCz.orderDetails.identifier | |
| Definition | An identifier of the imaging order. |
| Short | A.2.1.1 - Order Id |
| Note | This is a business identifier, not a resource identifier (see discussion) |
| Control | 1..* |
| Type | Identifier |
| 12. ImageOrderInformationCz.orderDetails.dateTime | |
| Definition | Date and time of the order placement. |
| Short | A.2.1.2 - Order date and time |
| Control | 1..1 |
| Type | dateTime |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
| 14. ImageOrderInformationCz.orderDetails.requestedExecdateTime | |
| Definition | Date and time of requested execution |
| Short | A.2.1.3 - Date and time of requested execution |
| Control | 0..1 |
| Type | dateTime |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
| 16. ImageOrderInformationCz.orderDetails.urgency | |
| Definition | Urgency of the order (routine, urgent, statim).
|
| Short | A.2.1.4 - Urgency of the order |
| Control | 0..1 |
| Type | CodeableConcept |
| 18. ImageOrderInformationCz.orderDetails.orderText | |
| Definition | A textual description of the order or additional requirements, specific to each type of order, if they cannot be expressed formally. |
| Short | A.2.1.5 - Order text |
| Control | 0..1 |
| Type | string |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
| 20. ImageOrderInformationCz.orderDetails.infoForPatient | |
| Definition | Patient instructions related to the order. E.g. fasting collection, etc. |
| Short | A.2.1.6 - Information for the patient |
| Control | 0..1 |
| Type | string |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
| 22. ImageOrderInformationCz.orderReason | |
| Definition | Reason of imaging order |
| Short | A.2.2 Order reason |
| Control | 0..1 |
| Type | BackboneElement |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) |
| 24. ImageOrderInformationCz.orderReason.id | |
| Definition | 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 |
| Control | 0..1 |
| Type | string |
| Is Modifier | false |
| XML Format | In the XML format, this property is represented as an attribute. |
| Summary | false |
| 26. ImageOrderInformationCz.orderReason.extension | |
| Definition | 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 manageable, 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. |
| Short | Additional content defined by implementations |
| Comments | 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. |
| Control | 0..* |
| Type | Extension |
| Is Modifier | false |
| Summary | false |
| Alternate Names | extensions, user content |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists()) |
| Slicing | This element introduces a set of slices on ImageOrderInformationCz.orderReason.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators: |
| 28. ImageOrderInformationCz.orderReason.modifierExtension | |
| Definition | 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 and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, 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). |
| Short | Extensions that cannot be ignored even if unrecognized |
| Comments | 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. |
| Control | 0..* |
| Type | Extension |
| Is Modifier | true because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them |
| Summary | true |
| Requirements | Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions. Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions. |
| Alternate Names | extensions, user content, modifiers |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists()) |
| 30. ImageOrderInformationCz.orderReason.problem | |
| Definition | The reason for issuing an examination order expressed in structured text and/or code.
|
| Short | A.2.2.1 Problem / diagnosis / condition description |
| Control | 1..* |
| Type | CodeableConcept |
| 32. ImageOrderInformationCz.orderReason.questionCode | |
| Definition | Coded information from 2.2.3, if entered
|
| Short | A.2.2.2 - Clinical question by code |
| Control | 0..* |
| Type | CodeableConcept |
| 34. ImageOrderInformationCz.orderReason.questionText | |
| Definition | The clinical question to be answered by imaging. Example: Does the patient have a lung tumour ? |
| Short | A.2.2.3 - Clinical question by text |
| Control | 1..1 |
| Type | string |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
| 36. ImageOrderInformationCz.orderReason.reasonCode | |
| Definition | Coded information from 2.2.5, if entered
|
| Short | A.2.2.4 - Reason for ordering by code |
| Control | 0..* |
| Type | CodeableConcept |
| 38. ImageOrderInformationCz.orderReason.reasonText | |
| Definition | Reason for the examination order expressed in free text (e.g. 3 weeks of persistent cough) |
| Short | A.2.2.5 - Reason for order by text |
| Control | 0..1 |
| Type | string |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
Guidance on how to interpret the contents of this table can be foundhere
| 0. ImageOrderInformationCz | |
| Definition | Information about order and order reason |
| Short | A.2.1 - Order information and A.2.2 - Order reason |
| Logical Model | Instances of this logical model are not marked to be the target of a Reference |
| 2. ImageOrderInformationCz.orderDetails | |
| Definition | Order information could respond to multiple test orders |
| Short | A.2.1 - Order information |
| Control | 0..* |
| Type | BackboneElement |
| 4. ImageOrderInformationCz.orderDetails.identifier | |
| Definition | An identifier of the imaging order. |
| Short | A.2.1.1 - Order Id |
| Note | This is a business identifier, not a resource identifier (see discussion) |
| Control | 1..* |
| Type | Identifier |
| 6. ImageOrderInformationCz.orderDetails.dateTime | |
| Definition | Date and time of the order placement. |
| Short | A.2.1.2 - Order date and time |
| Control | 1..1 |
| Type | dateTime |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
| 8. ImageOrderInformationCz.orderDetails.requestedExecdateTime | |
| Definition | Date and time of requested execution |
| Short | A.2.1.3 - Date and time of requested execution |
| Control | 0..1 |
| Type | dateTime |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
| 10. ImageOrderInformationCz.orderDetails.urgency | |
| Definition | Urgency of the order (routine, urgent, statim).
|
| Short | A.2.1.4 - Urgency of the order |
| Control | 0..1 |
| Type | CodeableConcept |
| 12. ImageOrderInformationCz.orderDetails.orderText | |
| Definition | A textual description of the order or additional requirements, specific to each type of order, if they cannot be expressed formally. |
| Short | A.2.1.5 - Order text |
| Control | 0..1 |
| Type | string |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
| 14. ImageOrderInformationCz.orderDetails.infoForPatient | |
| Definition | Patient instructions related to the order. E.g. fasting collection, etc. |
| Short | A.2.1.6 - Information for the patient |
| Control | 0..1 |
| Type | string |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
| 16. ImageOrderInformationCz.orderReason | |
| Definition | Reason of imaging order |
| Short | A.2.2 Order reason |
| Control | 0..1 |
| Type | BackboneElement |
| 18. ImageOrderInformationCz.orderReason.problem | |
| Definition | The reason for issuing an examination order expressed in structured text and/or code.
|
| Short | A.2.2.1 Problem / diagnosis / condition description |
| Control | 1..* |
| Type | CodeableConcept |
| 20. ImageOrderInformationCz.orderReason.questionCode | |
| Definition | Coded information from 2.2.3, if entered
|
| Short | A.2.2.2 - Clinical question by code |
| Control | 0..* |
| Type | CodeableConcept |
| 22. ImageOrderInformationCz.orderReason.questionText | |
| Definition | The clinical question to be answered by imaging. Example: Does the patient have a lung tumour ? |
| Short | A.2.2.3 - Clinical question by text |
| Control | 1..1 |
| Type | string |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
| 24. ImageOrderInformationCz.orderReason.reasonCode | |
| Definition | Coded information from 2.2.5, if entered
|
| Short | A.2.2.4 - Reason for ordering by code |
| Control | 0..* |
| Type | CodeableConcept |
| 26. ImageOrderInformationCz.orderReason.reasonText | |
| Definition | Reason for the examination order expressed in free text (e.g. 3 weeks of persistent cough) |
| Short | A.2.2.5 - Reason for order by text |
| Control | 0..1 |
| Type | string |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
Guidance on how to interpret the contents of this table can be foundhere
| 0. ImageOrderInformationCz | |
| Definition | Information about order and order reason |
| Short | A.2.1 - Order information and A.2.2 - Order reason |
| Control | 0..* |
| Is Modifier | false |
| Logical Model | Instances of this logical model are not marked to be the target of a Reference |
| 2. ImageOrderInformationCz.orderDetails | |
| Definition | Order information could respond to multiple test orders |
| Short | A.2.1 - Order information |
| Control | 0..* |
| Type | BackboneElement |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) |
| 4. ImageOrderInformationCz.orderDetails.id | |
| Definition | 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 |
| Control | 0..1 |
| Type | string |
| Is Modifier | false |
| XML Format | In the XML format, this property is represented as an attribute. |
| Summary | false |
| 6. ImageOrderInformationCz.orderDetails.extension | |
| Definition | 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 manageable, 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. |
| Short | Additional content defined by implementations |
| Comments | 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. |
| Control | 0..* |
| Type | Extension |
| Is Modifier | false |
| Summary | false |
| Alternate Names | extensions, user content |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))ext-1: Must have either extensions or value[x], not both ( extension.exists() != value.exists()) |
| Slicing | This element introduces a set of slices on ImageOrderInformationCz.orderDetails.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators: |
| 8. ImageOrderInformationCz.orderDetails.modifierExtension | |
| Definition | 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 and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, 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). |
| Short | Extensions that cannot be ignored even if unrecognized |
| Comments | 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. |
| Control | 0..* |
| Type | Extension |
| Is Modifier | true because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them |
| Summary | true |
| Requirements | Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions. |
| Alternate Names | extensions, user content, modifiers |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))ext-1: Must have either extensions or value[x], not both ( extension.exists() != value.exists()) |
| 10. ImageOrderInformationCz.orderDetails.identifier | |
| Definition | An identifier of the imaging order. |
| Short | A.2.1.1 - Order Id |
| Note | This is a business identifier, not a resource identifier (see discussion) |
| Control | 1..* |
| Type | Identifier |
| 12. ImageOrderInformationCz.orderDetails.dateTime | |
| Definition | Date and time of the order placement. |
| Short | A.2.1.2 - Order date and time |
| Control | 1..1 |
| Type | dateTime |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
| 14. ImageOrderInformationCz.orderDetails.requestedExecdateTime | |
| Definition | Date and time of requested execution |
| Short | A.2.1.3 - Date and time of requested execution |
| Control | 0..1 |
| Type | dateTime |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
| 16. ImageOrderInformationCz.orderDetails.urgency | |
| Definition | Urgency of the order (routine, urgent, statim).
|
| Short | A.2.1.4 - Urgency of the order |
| Control | 0..1 |
| Type | CodeableConcept |
| 18. ImageOrderInformationCz.orderDetails.orderText | |
| Definition | A textual description of the order or additional requirements, specific to each type of order, if they cannot be expressed formally. |
| Short | A.2.1.5 - Order text |
| Control | 0..1 |
| Type | string |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
| 20. ImageOrderInformationCz.orderDetails.infoForPatient | |
| Definition | Patient instructions related to the order. E.g. fasting collection, etc. |
| Short | A.2.1.6 - Information for the patient |
| Control | 0..1 |
| Type | string |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
| 22. ImageOrderInformationCz.orderReason | |
| Definition | Reason of imaging order |
| Short | A.2.2 Order reason |
| Control | 0..1 |
| Type | BackboneElement |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) |
| 24. ImageOrderInformationCz.orderReason.id | |
| Definition | 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 |
| Control | 0..1 |
| Type | string |
| Is Modifier | false |
| XML Format | In the XML format, this property is represented as an attribute. |
| Summary | false |
| 26. ImageOrderInformationCz.orderReason.extension | |
| Definition | 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 manageable, 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. |
| Short | Additional content defined by implementations |
| Comments | 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. |
| Control | 0..* |
| Type | Extension |
| Is Modifier | false |
| Summary | false |
| Alternate Names | extensions, user content |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))ext-1: Must have either extensions or value[x], not both ( extension.exists() != value.exists()) |
| Slicing | This element introduces a set of slices on ImageOrderInformationCz.orderReason.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators: |
| 28. ImageOrderInformationCz.orderReason.modifierExtension | |
| Definition | 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 and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, 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). |
| Short | Extensions that cannot be ignored even if unrecognized |
| Comments | 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. |
| Control | 0..* |
| Type | Extension |
| Is Modifier | true because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them |
| Summary | true |
| Requirements | Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions. |
| Alternate Names | extensions, user content, modifiers |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))ext-1: Must have either extensions or value[x], not both ( extension.exists() != value.exists()) |
| 30. ImageOrderInformationCz.orderReason.problem | |
| Definition | The reason for issuing an examination order expressed in structured text and/or code.
|
| Short | A.2.2.1 Problem / diagnosis / condition description |
| Control | 1..* |
| Type | CodeableConcept |
| 32. ImageOrderInformationCz.orderReason.questionCode | |
| Definition | Coded information from 2.2.3, if entered
|
| Short | A.2.2.2 - Clinical question by code |
| Control | 0..* |
| Type | CodeableConcept |
| 34. ImageOrderInformationCz.orderReason.questionText | |
| Definition | The clinical question to be answered by imaging. Example: Does the patient have a lung tumour ? |
| Short | A.2.2.3 - Clinical question by text |
| Control | 1..1 |
| Type | string |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
| 36. ImageOrderInformationCz.orderReason.reasonCode | |
| Definition | Coded information from 2.2.5, if entered
|
| Short | A.2.2.4 - Reason for ordering by code |
| Control | 0..* |
| Type | CodeableConcept |
| 38. ImageOrderInformationCz.orderReason.reasonText | |
| Definition | Reason for the examination order expressed in free text (e.g. 3 weeks of persistent cough) |
| Short | A.2.2.5 - Reason for order by text |
| Control | 0..1 |
| Type | string |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |