# Cancer Patient - HL7 Europe Common Cancer Model v1.0.0-ballot

* [**Table of Contents**](toc.md)
* [**Artifacts Summary**](artifacts.md)
* **Cancer Patient**

## Logical Model: Cancer Patient 

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

 
Logical model describing the patient affected by cancer, acting as the central subject for diagnosis, treatments, disease evolution and follow-up. Derived from Cancer_Common_Logical_Model_20260521.xlsx (sheet CancerPatient). 

**Usages:**

* Use this Logical Model: [Active Surveillance](StructureDefinition-ActiveSurveillance.md)
* Refer to this Logical Model: [CancerConditionAtDiagnosis](StructureDefinition-CancerConditionAtDiagnosis.md), [LastFollowUp](StructureDefinition-LastFollowUp.md), [Radiotherapy](StructureDefinition-Radiotherapy.md), [Surgery](StructureDefinition-Surgery.md) and [SystemicTreatment](StructureDefinition-SystemicTreatment.md)

You can also check for [usages in the FHIR IG Statistics](https://packages2.fhir.org/xig/resource/hl7.fhir.eu.cancer-common|current/StructureDefinition/StructureDefinition-CancerPatient.json)

### Formal Views of Profile Content

 [Description of Profiles, Differentials, Snapshots and how the different presentations work](http://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#structure-definitions). 

 

Other representations of profile: [CSV](StructureDefinition-CancerPatient.csv), [Excel](StructureDefinition-CancerPatient.xlsx) 



## Resource Content

```json
{
  "resourceType" : "StructureDefinition",
  "id" : "CancerPatient",
  "extension" : [{
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-type-characteristics",
    "valueCode" : "can-be-target"
  }],
  "url" : "http://hl7.eu/fhir/cancer-common/StructureDefinition/CancerPatient",
  "version" : "1.0.0-ballot",
  "name" : "CancerPatient",
  "title" : "Cancer Patient",
  "status" : "active",
  "date" : "2026-06-14T12:51:40+02:00",
  "publisher" : "HL7 Europe",
  "contact" : [{
    "name" : "HL7 Europe",
    "telecom" : [{
      "system" : "url",
      "value" : "http://hl7.eu"
    }]
  }],
  "description" : "Logical model describing the patient affected by cancer, acting as the central subject for diagnosis, treatments, disease evolution and follow-up. Derived from Cancer_Common_Logical_Model_20260521.xlsx (sheet CancerPatient).",
  "jurisdiction" : [{
    "coding" : [{
      "system" : "http://unstats.un.org/unsd/methods/m49/m49.htm",
      "code" : "150",
      "display" : "Europe"
    }]
  }],
  "copyright" : "HL7 Europe Copyright. Licensed under Common Creative License (CC0 1.0). Details at [Copyright](copyright.html).",
  "fhirVersion" : "4.0.1",
  "kind" : "logical",
  "abstract" : false,
  "type" : "http://hl7.eu/fhir/cancer-common/StructureDefinition/CancerPatient",
  "baseDefinition" : "http://hl7.org/fhir/StructureDefinition/Base",
  "derivation" : "specialization",
  "differential" : {
    "element" : [{
      "id" : "CancerPatient",
      "path" : "CancerPatient",
      "short" : "Cancer Patient",
      "definition" : "Logical model describing the patient affected by cancer, acting as the central subject for diagnosis, treatments, disease evolution and follow-up. Derived from Cancer_Common_Logical_Model_20260521.xlsx (sheet CancerPatient)."
    },
    {
      "id" : "CancerPatient.birthDate",
      "path" : "CancerPatient.birthDate",
      "short" : "BirthDate",
      "definition" : "Patient date of birth (at least the year should be available).",
      "comment" : "At least the year must be present.",
      "min" : 1,
      "max" : "1",
      "type" : [{
        "code" : "dateTime"
      }]
    },
    {
      "id" : "CancerPatient.sexAtBirth",
      "path" : "CancerPatient.sexAtBirth",
      "short" : "SexAtBirth",
      "definition" : "Biological sex assigned at birth, determined by sex characteristics observed at birth or infancy (e.g., genital characteristics and/or chromosome composition). This represents sex as a biological variable and should not be used to represent gender identity or administrative gender.",
      "comment" : "This element refers to biological sex assigned at birth (not gender identity). It is typically captured once and is not expected to change. Choice: Male | Female | Unknown | Other",
      "min" : 1,
      "max" : "1",
      "type" : [{
        "code" : "CodeableConcept"
      }]
    },
    {
      "id" : "CancerPatient.observedSexGender",
      "path" : "CancerPatient.observedSexGender",
      "short" : "ObservedSex Gender",
      "definition" : "Recorded sex at the time of cancer diagnosis, if different from SexAtBirth. This captures what is documented at diagnosis and should be interpreted in line with the clinical record context.",
      "comment" : "It shall be present if changed respect the SexAtBirth. See https://confluence.hl7.org/spaces/VOC/pages/40743893/The+Gender+Harmony+Project",
      "min" : 0,
      "max" : "1",
      "type" : [{
        "code" : "CodeableConcept"
      }]
    },
    {
      "id" : "CancerPatient.comorbiditiesAtCancerDiagnosis",
      "path" : "CancerPatient.comorbiditiesAtCancerDiagnosis",
      "short" : "ComorbiditiesAtCancerDiagnosis",
      "definition" : "Active chronic conditions present at the time of cancer diagnosis.",
      "comment" : "Active chronic conditions present at the time of cancer diagnosis.",
      "min" : 0,
      "max" : "*",
      "type" : [{
        "code" : "CodeableConcept"
      }]
    }]
  }
}

```
