Extensions for Using Data Elements from FHIR R4 in FHIR STU3
0.1.0 - STU
Extensions for Using Data Elements from FHIR R4 in FHIR STU3
0.1.0 - STU
Extensions for Using Data Elements from FHIR R4 in FHIR STU3 - Downloaded Version null See the Directory of published versions
| Page standards status: Trial-use | Maturity Level: 0 |
Definitions for the ext-R4-SS.str.iso.molecularWeight extension.
Guidance on how to interpret the contents of this table can be foundhere
| 0. Extension | |
| Definition | R4: Optional Extension Element - found in all resources. |
| Short | R4: The molecular weight or weight range (for proteins, polymers or nucleic acids) (new)Optional Extensions Element |
| Comments | Element |
| Control | 0..1* This element is affected by the following invariants: ele-1 |
| Is Modifier | false |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() | (children().count() > id.count()))ext-1: Must have either extensions or value[x], not both ( extension.exists() != value.exists())ele-1: All FHIR elements must have a @value or children (hasValue() | (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists()) |
| 2. Extension.extension | |
| Definition | An Extension May be used to represent additional information that is not part of the basic definition of the element. In order 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 is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. |
| Short | ExtensionAdditional 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 |
| Alternate Names | extensions, user content |
| Slicing | This element introduces a set of slices on Extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators: |
| 4. Extension.extension:method | |
| Slice Name | method |
| Definition | R4: |
| Short | R4: The method by which the molecular weight was determined (new)Additional Content defined by implementations |
| Comments | Element |
| Control | 0..1* |
| Type | Extension |
| Requirements | Element |
| 6. Extension.extension:method.url | |
| Definition | Source of the definition for the extension code - a logical name or a URL. |
| Short | identifies the meaning of the extension |
| Comments | The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension. |
| Control | 1..1 |
| Type | uri |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
| XML Format | In the XML format, this property is represented as an attribute. |
| Fixed Value | method |
| 8. Extension.extension:method.value[x] | |
| Definition | The method by which the molecular weight was determined. Value of extension - may be a resource or one of a constrained set of the data types (see Extensibility in the spec for list). |
| Short | The method by which the molecular weight was determinedValue of extension |
| Control | 0..1 |
| Type | CodeableConcept, date, dateTime, Meta, code, string, Address, Attachment, integer, oid, Count, instant, ContactPoint, HumanName, Money, Identifier, Coding, markdown, SampledData, Ratio, id, positiveInt, Age, Distance, Reference, Period, Quantity, Duration, Range, uri, Annotation, boolean, base64Binary, Signature, unsignedInt, time, Timing, decimal |
| [x] Note | SeeChoice of Data Typesfor further information about how to use [x] |
| 10. Extension.extension:type | |
| Slice Name | type |
| Definition | R4: |
| Short | R4: Type of molecular weight such as exact, average (also known as. number average), weight average (new)Additional Content defined by implementations |
| Comments | Element |
| Control | 0..1* |
| Type | Extension |
| Requirements | Element |
| 12. Extension.extension:type.url | |
| Definition | Source of the definition for the extension code - a logical name or a URL. |
| Short | identifies the meaning of the extension |
| Comments | The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension. |
| Control | 1..1 |
| Type | uri |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
| XML Format | In the XML format, this property is represented as an attribute. |
| Fixed Value | type |
| 14. Extension.extension:type.value[x] | |
| Definition | Type of molecular weight such as exact, average (also known as. number average), weight average. Value of extension - may be a resource or one of a constrained set of the data types (see Extensibility in the spec for list). |
| Short | Type of molecular weight such as exact, average (also known as. number average), weight averageValue of extension |
| Control | 0..1 |
| Type | CodeableConcept, date, dateTime, Meta, code, string, Address, Attachment, integer, oid, Count, instant, ContactPoint, HumanName, Money, Identifier, Coding, markdown, SampledData, Ratio, id, positiveInt, Age, Distance, Reference, Period, Quantity, Duration, Range, uri, Annotation, boolean, base64Binary, Signature, unsignedInt, time, Timing, decimal |
| [x] Note | SeeChoice of Data Typesfor further information about how to use [x] |
| 16. Extension.extension:amount | |
| Slice Name | amount |
| Definition | R4: |
| Short | R4: Used to capture quantitative values for a variety of elements. If only limits are given, the arithmetic mean would be the average. If only a single definite value for a given element is given, it would be captured in this field (new)Additional Content defined by implementations |
| Comments | Element |
| Control | 0..1* |
| Type | Extension |
| Requirements | Element |
| 18. Extension.extension:amount.url | |
| Definition | Source of the definition for the extension code - a logical name or a URL. |
| Short | identifies the meaning of the extension |
| Comments | The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension. |
| Control | 1..1 |
| Type | uri |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
| XML Format | In the XML format, this property is represented as an attribute. |
| Fixed Value | amount |
| 20. Extension.extension:amount.value[x] | |
| Definition | Used to capture quantitative values for a variety of elements. If only limits are given, the arithmetic mean would be the average. If only a single definite value for a given element is given, it would be captured in this field. Value of extension - may be a resource or one of a constrained set of the data types (see Extensibility in the spec for list). |
| Short | Used to capture quantitative values for a variety of elements. If only limits are given, the arithmetic mean would be the average. If only a single definite value for a given element is given, it would be captured in this fieldValue of extension |
| Control | 0..1 |
| Type | Quantity, date, dateTime, Meta, code, string, Address, Attachment, integer, oid, Count, instant, ContactPoint, HumanName, Money, Identifier, Coding, markdown, SampledData, Ratio, id, positiveInt, Age, Distance, Reference, Period, Duration, Range, uri, Annotation, boolean, base64Binary, Signature, unsignedInt, time, Timing, decimal, CodeableConcept |
| [x] Note | SeeChoice of Data Typesfor further information about how to use [x] |
| 22. Extension.url | |
| Definition | Source of the definition for the extension code - a logical name or a URL. |
| Short | identifies the meaning of the extension |
| Comments | The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension. |
| Control | 1..1 |
| Type | uri |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
| XML Format | In the XML format, this property is represented as an attribute. |
| Fixed Value | http://hl7.org/fhir/4.0/StructureDefinition/extension-SubstanceSpecification.structure.isotope.molecularWeight |
| 24. Extension.value[x] | |
| Definition | Value of extension - may be a resource or one of a constrained set of the data types (see Extensibility in the spec for list). |
| Short | Value of extension |
| Control | 0..01 |
| Type | Choice of: base64Binary, boolean, code, date, dateTime, decimal, id, instant, integer, markdown, oid, positiveInt, string, time, unsignedInt, uri, Address, Age, Annotation, Attachment, CodeableConcept, Coding, ContactPoint, Count, Distance, Duration, HumanName, Identifier, Money, Period, Quantity, Range, Ratio, Reference, SampledData, Signature, Timing, Meta |
| 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. Extension | |
| Definition | R4: |
| Short | R4: The molecular weight or weight range (for proteins, polymers or nucleic acids) (new) |
| Comments | Element |
| Control | 0..1 |
| Is Modifier | false |
| 2. Extension.extension | |
| Control | 0..* |
| Slicing | This element introduces a set of slices on Extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators: |
| 4. Extension.extension:method | |
| Slice Name | method |
| Definition | R4: |
| Short | R4: The method by which the molecular weight was determined (new) |
| Comments | Element |
| Control | 0..1 |
| Requirements | Element |
| 6. Extension.extension:method.url | |
| Control | 1..1 |
| Fixed Value | method |
| 8. Extension.extension:method.value[x] | |
| Definition | The method by which the molecular weight was determined. |
| Short | The method by which the molecular weight was determined |
| Control | 0..1 |
| Type | CodeableConcept |
| [x] Note | SeeChoice of Data Typesfor further information about how to use [x] |
| 10. Extension.extension:type | |
| Slice Name | type |
| Definition | R4: |
| Short | R4: Type of molecular weight such as exact, average (also known as. number average), weight average (new) |
| Comments | Element |
| Control | 0..1 |
| Requirements | Element |
| 12. Extension.extension:type.url | |
| Control | 1..1 |
| Fixed Value | type |
| 14. Extension.extension:type.value[x] | |
| Definition | Type of molecular weight such as exact, average (also known as. number average), weight average. |
| Short | Type of molecular weight such as exact, average (also known as. number average), weight average |
| Control | 0..1 |
| Type | CodeableConcept |
| [x] Note | SeeChoice of Data Typesfor further information about how to use [x] |
| 16. Extension.extension:amount | |
| Slice Name | amount |
| Definition | R4: |
| Short | R4: Used to capture quantitative values for a variety of elements. If only limits are given, the arithmetic mean would be the average. If only a single definite value for a given element is given, it would be captured in this field (new) |
| Comments | Element |
| Control | 0..1 |
| Requirements | Element |
| 18. Extension.extension:amount.url | |
| Control | 1..1 |
| Fixed Value | amount |
| 20. Extension.extension:amount.value[x] | |
| Definition | Used to capture quantitative values for a variety of elements. If only limits are given, the arithmetic mean would be the average. If only a single definite value for a given element is given, it would be captured in this field. |
| Short | Used to capture quantitative values for a variety of elements. If only limits are given, the arithmetic mean would be the average. If only a single definite value for a given element is given, it would be captured in this field |
| Control | 0..1 |
| Type | Quantity |
| [x] Note | SeeChoice of Data Typesfor further information about how to use [x] |
| 22. Extension.url | |
| Control | 1..1 |
| Fixed Value | http://hl7.org/fhir/4.0/StructureDefinition/extension-SubstanceSpecification.structure.isotope.molecularWeight |
| 24. Extension.value[x] | |
| Control | 0..0 |
Guidance on how to interpret the contents of this table can be foundhere
| 0. Extension | |
| Definition | R4: |
| Short | R4: The molecular weight or weight range (for proteins, polymers or nucleic acids) (new) |
| Comments | Element |
| Control | 0..1 This element is affected by the following invariants: ele-1 |
| Is Modifier | false |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() | (children().count() > id.count()))ext-1: Must have either extensions or value[x], not both ( extension.exists() != value.exists()) |
| 2. Extension.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 | xml:id (or equivalent in JSON) |
| Control | 0..1 |
| Type | string |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
| XML Format | In the XML format, this property is represented as an attribute. |
| 4. Extension.extension | |
| Definition | An Extension |
| Short | Extension |
| Control | 0..* |
| Type | Extension |
| Slicing | This element introduces a set of slices on Extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators: |
| 6. Extension.extension:method | |
| Slice Name | method |
| Definition | R4: |
| Short | R4: The method by which the molecular weight was determined (new) |
| Comments | Element |
| Control | 0..1 |
| Type | Extension |
| Requirements | Element |
| 8. Extension.extension:method.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 | xml:id (or equivalent in JSON) |
| Control | 0..1 |
| Type | string |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
| XML Format | In the XML format, this property is represented as an attribute. |
| 10. Extension.extension:method.extension | |
| Definition | May be used to represent additional information that is not part of the basic definition of the element. In order 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 is allowed to 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 |
| Alternate Names | extensions, user content |
| Slicing | This element introduces a set of slices on Extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators: |
| 12. Extension.extension:method.url | |
| Definition | Source of the definition for the extension code - a logical name or a URL. |
| Short | identifies the meaning of the extension |
| Comments | The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension. |
| Control | 1..1 |
| Type | uri |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
| XML Format | In the XML format, this property is represented as an attribute. |
| Fixed Value | method |
| 14. Extension.extension:method.value[x] | |
| Definition | The method by which the molecular weight was determined. |
| Short | The method by which the molecular weight was determined |
| Control | 0..1 |
| Type | CodeableConcept |
| [x] Note | SeeChoice of Data Typesfor further information about how to use [x] |
| 16. Extension.extension:type | |
| Slice Name | type |
| Definition | R4: |
| Short | R4: Type of molecular weight such as exact, average (also known as. number average), weight average (new) |
| Comments | Element |
| Control | 0..1 |
| Type | Extension |
| Requirements | Element |
| 18. Extension.extension:type.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 | xml:id (or equivalent in JSON) |
| Control | 0..1 |
| Type | string |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
| XML Format | In the XML format, this property is represented as an attribute. |
| 20. Extension.extension:type.extension | |
| Definition | May be used to represent additional information that is not part of the basic definition of the element. In order 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 is allowed to 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 |
| Alternate Names | extensions, user content |
| Slicing | This element introduces a set of slices on Extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators: |
| 22. Extension.extension:type.url | |
| Definition | Source of the definition for the extension code - a logical name or a URL. |
| Short | identifies the meaning of the extension |
| Comments | The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension. |
| Control | 1..1 |
| Type | uri |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
| XML Format | In the XML format, this property is represented as an attribute. |
| Fixed Value | type |
| 24. Extension.extension:type.value[x] | |
| Definition | Type of molecular weight such as exact, average (also known as. number average), weight average. |
| Short | Type of molecular weight such as exact, average (also known as. number average), weight average |
| Control | 0..1 |
| Type | CodeableConcept |
| [x] Note | SeeChoice of Data Typesfor further information about how to use [x] |
| 26. Extension.extension:amount | |
| Slice Name | amount |
| Definition | R4: |
| Short | R4: Used to capture quantitative values for a variety of elements. If only limits are given, the arithmetic mean would be the average. If only a single definite value for a given element is given, it would be captured in this field (new) |
| Comments | Element |
| Control | 0..1 |
| Type | Extension |
| Requirements | Element |
| 28. Extension.extension:amount.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 | xml:id (or equivalent in JSON) |
| Control | 0..1 |
| Type | string |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
| XML Format | In the XML format, this property is represented as an attribute. |
| 30. Extension.extension:amount.extension | |
| Definition | May be used to represent additional information that is not part of the basic definition of the element. In order 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 is allowed to 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 |
| Alternate Names | extensions, user content |
| Slicing | This element introduces a set of slices on Extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators: |
| 32. Extension.extension:amount.url | |
| Definition | Source of the definition for the extension code - a logical name or a URL. |
| Short | identifies the meaning of the extension |
| Comments | The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension. |
| Control | 1..1 |
| Type | uri |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
| XML Format | In the XML format, this property is represented as an attribute. |
| Fixed Value | amount |
| 34. Extension.extension:amount.value[x] | |
| Definition | Used to capture quantitative values for a variety of elements. If only limits are given, the arithmetic mean would be the average. If only a single definite value for a given element is given, it would be captured in this field. |
| Short | Used to capture quantitative values for a variety of elements. If only limits are given, the arithmetic mean would be the average. If only a single definite value for a given element is given, it would be captured in this field |
| Control | 0..1 |
| Type | Quantity |
| [x] Note | SeeChoice of Data Typesfor further information about how to use [x] |
| 36. Extension.url | |
| Definition | Source of the definition for the extension code - a logical name or a URL. |
| Short | identifies the meaning of the extension |
| Comments | The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension. |
| Control | 1..1 |
| Type | uri |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
| XML Format | In the XML format, this property is represented as an attribute. |
| Fixed Value | http://hl7.org/fhir/4.0/StructureDefinition/extension-SubstanceSpecification.structure.isotope.molecularWeight |
| 38. Extension.value[x] | |
| Definition | Value of extension - may be a resource or one of a constrained set of the data types (see Extensibility in the spec for list). |
| Short | Value of extension |
| Control | 0..0 |
| Type | Choice of: base64Binary, boolean, code, date, dateTime, decimal, id, instant, integer, markdown, oid, positiveInt, string, time, unsignedInt, uri, Address, Age, Annotation, Attachment, CodeableConcept, Coding, ContactPoint, Count, Distance, Duration, HumanName, Identifier, Money, Period, Quantity, Range, Ratio, Reference, SampledData, Signature, Timing, Meta |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
IG © 2025+ FHIR Infrastructure. Package hl7.fhir.uv.xver-r4.r3#0.1.0 based on FHIR 3.0.2. Generated 2026-03-20
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