HL7 Europe Common Cancer Model
1.0.0-ballot - ballot 150

HL7 Europe Common Cancer Model - Local Development build (v1.0.0-ballot) built by the FHIR (HL7® FHIR® Standard) Build Tools. See the Directory of published versions

## Logical Model: CancerStage

Official URL: http://hl7.eu/fhir/cancer-common/StructureDefinition/CancerStage | Version: 1.0.0-ballot
Active as of 2026-06-14 | Computable Name: CancerStage
Copyright/Legal: HL7 Europe Copyright. Licensed under Common Creative License (CC0 1.0). Details at Copyright.

Logical model representing the cancer stage at the time of first diagnosis. The stage may be clinical or pathological: the clinical stage is derived from imaging evidence, while the pathological stage, when available, is derived from surgical evidence. Derived from Cancer_Common_Logical_Model_20260521.xlsx (sheet CancerStage).

Usages:

- This Logical Model is not used by any profiles in this Specification

You can also check for usages in the FHIR IG Statistics

### Formal Views of Profile Content

Description of Profiles, Differentials, Snapshots and how the different presentations work.

- Key Elements Table
- Differential Table
- Snapshot Table
- Statistics/References
- All

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
CancerStage | C | 0..* | Base | CancerStage Instances of this logical model can be the target of a Reference Constraints: cs-ev-e1, cs-ev-e2, cs-tnm-1, cs-nontnm-1
cancerConditionAtDiagnosisReference |  | 1..1 | Reference(CancerConditionAtDiagnosis) | CancerCondition AtDiagnosis Reference
classificationType |  | 0..1 | CodeableConcept | ClassificationType
stage |  | 1..* | BackboneElement | StageValue
@id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url
modifierExtension | ?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized
code |  | 1..1 | CodeableConcept | Stage element code
value |  | 1..1 | CodeableConcept | Stage element value
type |  | 1..1 | CodeableConcept | Type
evidenceReference |  | 0..* | Reference(Surgery | Imaging) | EvidenceReference
Documentation for this format

#### Constraints

Id | Grade | Path(s) | Description | Expression
cs-ev-e1 | error | CancerStage | If type is Clinical, imaging evidence must not be provided. | ``
cs-ev-e2 | error | CancerStage | If type is Pathological, surgery evidence must not be provided. | ``
cs-nontnm-1 | warning | CancerStage | For non-TNM staging systems, a single value is typically expected. | `classificationType.text != 'TNM' implies stage.count() = 1`
cs-tnm-1 | warning | CancerStage | If classificationType is TNM, 3 values is expected. | `classificationType.text = 'TNM' implies stage.count() >= 3`
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()`

This structure is derived from Base

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
CancerStage | C | 0..* | Base | CancerStage Instances of this logical model can be the target of a Reference Constraints: cs-ev-e1, cs-ev-e2, cs-tnm-1, cs-nontnm-1
cancerConditionAtDiagnosisReference |  | 1..1 | Reference(CancerConditionAtDiagnosis) | CancerCondition AtDiagnosis Reference
classificationType |  | 0..1 | CodeableConcept | ClassificationType
stage |  | 1..* | BackboneElement | StageValue
code |  | 1..1 | CodeableConcept | Stage element code
value |  | 1..1 | CodeableConcept | Stage element value
type |  | 1..1 | CodeableConcept | Type
evidenceReference |  | 0..* | Reference(Surgery | Imaging) | EvidenceReference
Documentation for this format

#### Constraints

Id | Grade | Path(s) | Description | Expression
cs-ev-e1 | error | CancerStage | If type is Clinical, imaging evidence must not be provided. | ``
cs-ev-e2 | error | CancerStage | If type is Pathological, surgery evidence must not be provided. | ``
cs-nontnm-1 | warning | CancerStage | For non-TNM staging systems, a single value is typically expected. | `classificationType.text != 'TNM' implies stage.count() = 1`
cs-tnm-1 | warning | CancerStage | If classificationType is TNM, 3 values is expected. | `classificationType.text = 'TNM' implies stage.count() >= 3`

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
CancerStage | C | 0..* | Base | CancerStage Instances of this logical model can be the target of a Reference Constraints: cs-ev-e1, cs-ev-e2, cs-tnm-1, cs-nontnm-1
cancerConditionAtDiagnosisReference |  | 1..1 | Reference(CancerConditionAtDiagnosis) | CancerCondition AtDiagnosis Reference
classificationType |  | 0..1 | CodeableConcept | ClassificationType
stage |  | 1..* | BackboneElement | StageValue
@id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url
modifierExtension | ?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized
code |  | 1..1 | CodeableConcept | Stage element code
value |  | 1..1 | CodeableConcept | Stage element value
type |  | 1..1 | CodeableConcept | Type
evidenceReference |  | 0..* | Reference(Surgery | Imaging) | EvidenceReference
Documentation for this format

#### Constraints

Id | Grade | Path(s) | Description | Expression
cs-ev-e1 | error | CancerStage | If type is Clinical, imaging evidence must not be provided. | ``
cs-ev-e2 | error | CancerStage | If type is Pathological, surgery evidence must not be provided. | ``
cs-nontnm-1 | warning | CancerStage | For non-TNM staging systems, a single value is typically expected. | `classificationType.text != 'TNM' implies stage.count() = 1`
cs-tnm-1 | warning | CancerStage | If classificationType is TNM, 3 values is expected. | `classificationType.text = 'TNM' implies stage.count() >= 3`
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()`

This structure is derived from Base

Summary

Mandatory: 0 element(5 nested mandatory elements)

Structures

This structure refers to these other structures:

- CancerConditionAtDiagnosis (http://hl7.eu/fhir/cancer-common/StructureDefinition/CancerConditionAtDiagnosis)
- Surgery (http://hl7.eu/fhir/cancer-common/StructureDefinition/Surgery)
- Imaging (http://hl7.eu/fhir/cancer-common/StructureDefinition/Imaging)

Key Elements View

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
CancerStage | C | 0..* | Base | CancerStage Instances of this logical model can be the target of a Reference Constraints: cs-ev-e1, cs-ev-e2, cs-tnm-1, cs-nontnm-1
cancerConditionAtDiagnosisReference |  | 1..1 | Reference(CancerConditionAtDiagnosis) | CancerCondition AtDiagnosis Reference
classificationType |  | 0..1 | CodeableConcept | ClassificationType
stage |  | 1..* | BackboneElement | StageValue
@id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url
modifierExtension | ?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized
code |  | 1..1 | CodeableConcept | Stage element code
value |  | 1..1 | CodeableConcept | Stage element value
type |  | 1..1 | CodeableConcept | Type
evidenceReference |  | 0..* | Reference(Surgery | Imaging) | EvidenceReference
Documentation for this format

#### Constraints

Id | Grade | Path(s) | Description | Expression
cs-ev-e1 | error | CancerStage | If type is Clinical, imaging evidence must not be provided. | ``
cs-ev-e2 | error | CancerStage | If type is Pathological, surgery evidence must not be provided. | ``
cs-nontnm-1 | warning | CancerStage | For non-TNM staging systems, a single value is typically expected. | `classificationType.text != 'TNM' implies stage.count() = 1`
cs-tnm-1 | warning | CancerStage | If classificationType is TNM, 3 values is expected. | `classificationType.text = 'TNM' implies stage.count() >= 3`
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()`

Differential View

This structure is derived from Base

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
CancerStage | C | 0..* | Base | CancerStage Instances of this logical model can be the target of a Reference Constraints: cs-ev-e1, cs-ev-e2, cs-tnm-1, cs-nontnm-1
cancerConditionAtDiagnosisReference |  | 1..1 | Reference(CancerConditionAtDiagnosis) | CancerCondition AtDiagnosis Reference
classificationType |  | 0..1 | CodeableConcept | ClassificationType
stage |  | 1..* | BackboneElement | StageValue
code |  | 1..1 | CodeableConcept | Stage element code
value |  | 1..1 | CodeableConcept | Stage element value
type |  | 1..1 | CodeableConcept | Type
evidenceReference |  | 0..* | Reference(Surgery | Imaging) | EvidenceReference
Documentation for this format

#### Constraints

Id | Grade | Path(s) | Description | Expression
cs-ev-e1 | error | CancerStage | If type is Clinical, imaging evidence must not be provided. | ``
cs-ev-e2 | error | CancerStage | If type is Pathological, surgery evidence must not be provided. | ``
cs-nontnm-1 | warning | CancerStage | For non-TNM staging systems, a single value is typically expected. | `classificationType.text != 'TNM' implies stage.count() = 1`
cs-tnm-1 | warning | CancerStage | If classificationType is TNM, 3 values is expected. | `classificationType.text = 'TNM' implies stage.count() >= 3`

Snapshot View

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
CancerStage | C | 0..* | Base | CancerStage Instances of this logical model can be the target of a Reference Constraints: cs-ev-e1, cs-ev-e2, cs-tnm-1, cs-nontnm-1
cancerConditionAtDiagnosisReference |  | 1..1 | Reference(CancerConditionAtDiagnosis) | CancerCondition AtDiagnosis Reference
classificationType |  | 0..1 | CodeableConcept | ClassificationType
stage |  | 1..* | BackboneElement | StageValue
@id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url
modifierExtension | ?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized
code |  | 1..1 | CodeableConcept | Stage element code
value |  | 1..1 | CodeableConcept | Stage element value
type |  | 1..1 | CodeableConcept | Type
evidenceReference |  | 0..* | Reference(Surgery | Imaging) | EvidenceReference
Documentation for this format

#### Constraints

Id | Grade | Path(s) | Description | Expression
cs-ev-e1 | error | CancerStage | If type is Clinical, imaging evidence must not be provided. | ``
cs-ev-e2 | error | CancerStage | If type is Pathological, surgery evidence must not be provided. | ``
cs-nontnm-1 | warning | CancerStage | For non-TNM staging systems, a single value is typically expected. | `classificationType.text != 'TNM' implies stage.count() = 1`
cs-tnm-1 | warning | CancerStage | If classificationType is TNM, 3 values is expected. | `classificationType.text = 'TNM' implies stage.count() >= 3`
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()`

This structure is derived from Base

Summary

Mandatory: 0 element(5 nested mandatory elements)

Structures

This structure refers to these other structures:

- CancerConditionAtDiagnosis (http://hl7.eu/fhir/cancer-common/StructureDefinition/CancerConditionAtDiagnosis)
- Surgery (http://hl7.eu/fhir/cancer-common/StructureDefinition/Surgery)
- Imaging (http://hl7.eu/fhir/cancer-common/StructureDefinition/Imaging)

Other representations of profile: CSV, Excel