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: Active Surveillance

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

Logical model representing an active surveillance strategy in which the patient is monitored over time without active treatment, prior to disease progression. Derived from Cancer_Common_Logical_Model_20260521.xlsx (sheet ActiveSurveillance).

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
--- | --- | --- | --- | ---
ActiveSurveillance | C | 0..* | Base | Active Surveillance Instances of this logical model can be the target of a Reference Constraints: as-1
subject |  | 1..1 | CancerPatient | Subject
cancerConditionAtDiagnosisReference |  | 1..1 | Reference(CancerConditionAtDiagnosis) | CancerCondition AtDiagnosis Reference
startDate |  | 1..1 | dateTime | StartDate
endDate |  | 0..1 | dateTime | EndDate
Documentation for this format

#### Constraints

Id | Grade | Path(s) | Description | Expression
as-1 | error | ActiveSurveillance | If endDate is present, it must be greater than or equal to startDate. | `endDate.empty() or endDate >= startDate`

This structure is derived from Base

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
ActiveSurveillance | C | 0..* | Base | Active Surveillance Instances of this logical model can be the target of a Reference Constraints: as-1
subject |  | 1..1 | CancerPatient | Subject
cancerConditionAtDiagnosisReference |  | 1..1 | Reference(CancerConditionAtDiagnosis) | CancerCondition AtDiagnosis Reference
startDate |  | 1..1 | dateTime | StartDate
endDate |  | 0..1 | dateTime | EndDate
Documentation for this format

#### Constraints

Id | Grade | Path(s) | Description | Expression
as-1 | error | ActiveSurveillance | If endDate is present, it must be greater than or equal to startDate. | `endDate.empty() or endDate >= startDate`

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
ActiveSurveillance | C | 0..* | Base | Active Surveillance Instances of this logical model can be the target of a Reference Constraints: as-1
subject |  | 1..1 | CancerPatient | Subject
cancerConditionAtDiagnosisReference |  | 1..1 | Reference(CancerConditionAtDiagnosis) | CancerCondition AtDiagnosis Reference
startDate |  | 1..1 | dateTime | StartDate
endDate |  | 0..1 | dateTime | EndDate
Documentation for this format

#### Constraints

Id | Grade | Path(s) | Description | Expression
as-1 | error | ActiveSurveillance | If endDate is present, it must be greater than or equal to startDate. | `endDate.empty() or endDate >= startDate`

This structure is derived from Base

Summary

Mandatory: 0 element(3 nested mandatory elements)

Structures

This structure refers to these other structures:

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

Key Elements View

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
ActiveSurveillance | C | 0..* | Base | Active Surveillance Instances of this logical model can be the target of a Reference Constraints: as-1
subject |  | 1..1 | CancerPatient | Subject
cancerConditionAtDiagnosisReference |  | 1..1 | Reference(CancerConditionAtDiagnosis) | CancerCondition AtDiagnosis Reference
startDate |  | 1..1 | dateTime | StartDate
endDate |  | 0..1 | dateTime | EndDate
Documentation for this format

#### Constraints

Id | Grade | Path(s) | Description | Expression
as-1 | error | ActiveSurveillance | If endDate is present, it must be greater than or equal to startDate. | `endDate.empty() or endDate >= startDate`

Differential View

This structure is derived from Base

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
ActiveSurveillance | C | 0..* | Base | Active Surveillance Instances of this logical model can be the target of a Reference Constraints: as-1
subject |  | 1..1 | CancerPatient | Subject
cancerConditionAtDiagnosisReference |  | 1..1 | Reference(CancerConditionAtDiagnosis) | CancerCondition AtDiagnosis Reference
startDate |  | 1..1 | dateTime | StartDate
endDate |  | 0..1 | dateTime | EndDate
Documentation for this format

#### Constraints

Id | Grade | Path(s) | Description | Expression
as-1 | error | ActiveSurveillance | If endDate is present, it must be greater than or equal to startDate. | `endDate.empty() or endDate >= startDate`

Snapshot View

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
ActiveSurveillance | C | 0..* | Base | Active Surveillance Instances of this logical model can be the target of a Reference Constraints: as-1
subject |  | 1..1 | CancerPatient | Subject
cancerConditionAtDiagnosisReference |  | 1..1 | Reference(CancerConditionAtDiagnosis) | CancerCondition AtDiagnosis Reference
startDate |  | 1..1 | dateTime | StartDate
endDate |  | 0..1 | dateTime | EndDate
Documentation for this format

#### Constraints

Id | Grade | Path(s) | Description | Expression
as-1 | error | ActiveSurveillance | If endDate is present, it must be greater than or equal to startDate. | `endDate.empty() or endDate >= startDate`

This structure is derived from Base

Summary

Mandatory: 0 element(3 nested mandatory elements)

Structures

This structure refers to these other structures:

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

Other representations of profile: CSV, Excel