Starter FHIR Implementation Guide
1.0.1 - ci-build
Starter FHIR Implementation Guide
1.0.1 - ci-build
Starter FHIR Implementation Guide, published by Jembi Health Systems. This guide is not an authorized publication; it is the continuous build for version 1.0.1 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/jembi/Starter-FHIR-IG/ and changes regularly. See the Directory of published versions
| Official URL: http://jembi.org/fhir/StructureDefinition/strict-quantity | Version: 1.0.1 | |||
| Active as of 2025-09-26 | Computable Name: StrictQuantity | |||
Strict requirements for quantity-based measurements.
Usages:
You can also check for usages in the FHIR IG Statistics
Description of Profiles, Differentials, Snapshots and how the different presentations work.
| Name | Flags | Card. | Type | Description & Constraints Filter:   |
|---|---|---|---|---|
  Quantity |
C | 0..* | Quantity | A measured or measurable amount Constraints: qty-3 |
  value |
Σ | 1..1 | decimal | Numerical value (with implicit precision) |
| comparator |
?!Σ | 0..1 | code | < | <= | >= | > - how to understand the value Binding: QuantityComparator (required): How the Quantity should be understood and represented. |
| unit |
Σ | 1..1 | string | Unit representation |
| system |
ΣC | 1..1 | uri | System that defines coded unit form |
 code |
Σ | 1..1 | code | Coded form of the unit |
| Documentation for this format | ||||
| Path | Conformance | ValueSet | URI |
| Quantity.comparator | required | QuantityComparatorhttp://hl7.org/fhir/ValueSet/quantity-comparator|4.0.1From the FHIR Standard |
| Id | Grade | Path(s) | Details | Requirements |
| ele-1 | error | **ALL** elements | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) | |
| qty-3 | error | Quantity | If a code for the unit is present, the system SHALL also be present : code.empty() or system.exists() |
This structure is derived from Quantity
| Name | Flags | Card. | Type | Description & Constraints Filter: |
|---|---|---|---|---|
| Quantity |
0..* | Quantity | A measured or measurable amount | |
| value |
1..1 | decimal | Numerical value (with implicit precision) | |
| unit |
1..1 | string | Unit representation | |
| system |
1..1 | uri | System that defines coded unit form | |
| code |
1..1 | code | Coded form of the unit | |
| Documentation for this format | ||||
| Name | Flags | Card. | Type | Description & Constraints Filter: |
|---|---|---|---|---|
| Quantity |
C | 0..* | Quantity | A measured or measurable amount Constraints: qty-3 |
| id |
0..1 | string | Unique id for inter-element referencing | |
 extension |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
| value |
Σ | 1..1 | decimal | Numerical value (with implicit precision) |
| comparator |
?!Σ | 0..1 | code | < | <= | >= | > - how to understand the value Binding: QuantityComparator (required): How the Quantity should be understood and represented. |
| unit |
Σ | 1..1 | string | Unit representation |
| system |
ΣC | 1..1 | uri | System that defines coded unit form |
| code |
Σ | 1..1 | code | Coded form of the unit |
| Documentation for this format | ||||
| Path | Conformance | ValueSet | URI |
| Quantity.comparator | required | QuantityComparatorhttp://hl7.org/fhir/ValueSet/quantity-comparator|4.0.1From the FHIR Standard |
| Id | Grade | Path(s) | Details | Requirements |
| ele-1 | error | **ALL** elements | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) | |
| ext-1 | error | **ALL** extensions | Must have either extensions or value[x], not both : extension.exists() != value.exists() | |
| qty-3 | error | Quantity | If a code for the unit is present, the system SHALL also be present : code.empty() or system.exists() |
This structure is derived from Quantity
Key Elements View
| Name | Flags | Card. | Type | Description & Constraints Filter: |
|---|---|---|---|---|
| Quantity |
C | 0..* | Quantity | A measured or measurable amount Constraints: qty-3 |
| value |
Σ | 1..1 | decimal | Numerical value (with implicit precision) |
| comparator |
?!Σ | 0..1 | code | < | <= | >= | > - how to understand the value Binding: QuantityComparator (required): How the Quantity should be understood and represented. |
| unit |
Σ | 1..1 | string | Unit representation |
| system |
ΣC | 1..1 | uri | System that defines coded unit form |
| code |
Σ | 1..1 | code | Coded form of the unit |
| Documentation for this format | ||||
| Path | Conformance | ValueSet | URI |
| Quantity.comparator | required | QuantityComparatorhttp://hl7.org/fhir/ValueSet/quantity-comparator|4.0.1From the FHIR Standard |
| Id | Grade | Path(s) | Details | Requirements |
| ele-1 | error | **ALL** elements | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) | |
| qty-3 | error | Quantity | If a code for the unit is present, the system SHALL also be present : code.empty() or system.exists() |
Differential View
This structure is derived from Quantity
| Name | Flags | Card. | Type | Description & Constraints Filter: |
|---|---|---|---|---|
| Quantity |
0..* | Quantity | A measured or measurable amount | |
| value |
1..1 | decimal | Numerical value (with implicit precision) | |
| unit |
1..1 | string | Unit representation | |
| system |
1..1 | uri | System that defines coded unit form | |
| code |
1..1 | code | Coded form of the unit | |
| Documentation for this format | ||||
Snapshot View
| Name | Flags | Card. | Type | Description & Constraints Filter: |
|---|---|---|---|---|
| Quantity |
C | 0..* | Quantity | A measured or measurable amount Constraints: qty-3 |
| id |
0..1 | string | Unique id for inter-element referencing | |
| extension |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
| value |
Σ | 1..1 | decimal | Numerical value (with implicit precision) |
| comparator |
?!Σ | 0..1 | code | < | <= | >= | > - how to understand the value Binding: QuantityComparator (required): How the Quantity should be understood and represented. |
| unit |
Σ | 1..1 | string | Unit representation |
| system |
ΣC | 1..1 | uri | System that defines coded unit form |
| code |
Σ | 1..1 | code | Coded form of the unit |
| Documentation for this format | ||||
| Path | Conformance | ValueSet | URI |
| Quantity.comparator | required | QuantityComparatorhttp://hl7.org/fhir/ValueSet/quantity-comparator|4.0.1From the FHIR Standard |
| Id | Grade | Path(s) | Details | Requirements |
| ele-1 | error | **ALL** elements | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) | |
| ext-1 | error | **ALL** extensions | Must have either extensions or value[x], not both : extension.exists() != value.exists() | |
| qty-3 | error | Quantity | If a code for the unit is present, the system SHALL also be present : code.empty() or system.exists() |
This structure is derived from Quantity
Other representations of profile: CSV, Excel, Schematron