Belgian Cancer Registry on FHIR
0.1.0 - ci-build Belgium flag

Belgian Cancer Registry on FHIR - Local Development build (v0.1.0) built by the FHIR (HL7® FHIR® Standard) Build Tools. See the Directory of published versions

Logical Model: BCRCancerCase - Detailed Descriptions

Draft as of 2026-05-04

Definitions for the bcr-cancer-case logical model.

Guidance on how to interpret the contents of this table can be foundhere

0. bcr-cancer-case
Definition

Logical model of a single cancer case as published in the Belgian Cancer Registry (BCR) research dataset ("Cancer in Belgium").

This is the exported, derived dataset — patient demographics are pseudonymised, several fields are derived (numeric ICD-10, age categories, region, vital-status dates), and tumour-sequence variables are computed registry-wide.

For the submission form that hospitals fill in for every new diagnosis, see BCRCancerRegistrationForm (Bijlage 55), which is the upstream source of most of the variables here.

Source: BCR — Cancer in Belgium - metadata, version 2, 2025-05-05.

ShortBCR Cancer Case (Logical Model)
Control0..*
Is Modifierfalse
Logical ModelInstances of this logical model are not marked to be the target of a Reference
2. bcr-cancer-case.birthDate
Definition

Date of birth of the patient.

ShortDate of birth (fld_bi)
Control0..1
Typedate
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
4. bcr-cancer-case.ageAtIncidence
Definition

Age of the patient at the time of incidence of the tumour, expressed in completed years.

ShortAge at incidence (cls_ag)
Control0..1
TypeunsignedInt
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
6. bcr-cancer-case.ageCategory
Definition

Specific age category of the patient at incidence (BCR-defined classification).

ShortAge category at incidence (cls_ap)
Control0..1
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
8. bcr-cancer-case.region
Definition

Region of the official residence of the patient at the time of incidence of the tumour.

ShortRegion of residence (region)
Control0..1
BindingThe codes SHOULD be taken from BCR Belgian Region
(preferred to https://www.ehealth.fgov.be/standards/fhir/registries/bcr/ValueSet/bcr-region-vs)
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
10. bcr-cancer-case.sexAtBirth
Definition

Sex assigned at birth.

ShortSex at birth (fld_sx)
Control1..1
BindingThe codes SHALL be taken from BCR Sex at Birth
(required to https://www.ehealth.fgov.be/standards/fhir/registries/bcr/ValueSet/bcr-sex-at-birth-vs)
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
12. bcr-cancer-case.incidenceDate
Definition

Date of incidence of the tumour.

ShortDate of incidence (fld_ic)
Control1..1
Typedate
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
14. bcr-cancer-case.incidenceYear
Definition

Year of incidence of the tumour.

ShortYear of incidence (regist)
Control1..1
TypeunsignedInt
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
16. bcr-cancer-case.basisOfDiagnosis
Definition

Most reliable method by which the diagnosis was made.

ShortBasis of diagnosis (fld_dp)
Control1..1
BindingThe codes SHALL be taken from BCR Basis of Diagnosis
(required to https://www.ehealth.fgov.be/standards/fhir/registries/bcr/ValueSet/bcr-basis-of-diagnosis-vs)
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
18. bcr-cancer-case.icd10
Definition

ICD-10 code of the histology, as a string.

ShortICD-10 code (icd10)
Control0..1
BindingUnless not suitable, these codes SHALL be taken from BCR ICD-10
(extensible to https://www.ehealth.fgov.be/standards/fhir/registries/bcr/ValueSet/bcr-icd10-vs)
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
20. bcr-cancer-case.icd10Numeric
Definition

ICD-10 expressed as a numeric code, derived by BCR from the registered topography/morphology combination because ICD-10 is not registered by the sources.

ShortICD-10 (numeric, BCR-derived) (cls_dg)
Control0..1
Typestring
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
22. bcr-cancer-case.topography
Definition

Organ or tissue from which the primary tumour originated (ICD-O-3 topography).

ShortTopography (fld_tp)
Control1..1
BindingUnless not suitable, these codes SHALL be taken from BCR ICD-O-3 Topography
(extensible to https://www.ehealth.fgov.be/standards/fhir/registries/bcr/ValueSet/bcr-topography-vs)
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
24. bcr-cancer-case.morphology
Definition

Histology of the tumour (ICD-O-3 morphology).

ShortMorphology (fld_mp)
Control1..1
BindingUnless not suitable, these codes SHALL be taken from BCR ICD-O-3 Morphology
(extensible to https://www.ehealth.fgov.be/standards/fhir/registries/bcr/ValueSet/bcr-morphology-vs)
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
26. bcr-cancer-case.behaviour
Definition

Behaviour of the tumour (ICD-O-3 behaviour code: benign, borderline, in situ, malignant, etc.).

ShortBehaviour (fld_bh)
Control1..1
BindingThe codes SHALL be taken from BCR ICD-O-3 Behaviour (digit only)
(required to https://www.ehealth.fgov.be/standards/fhir/registries/bcr/ValueSet/bcr-behaviour-vs)
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
28. bcr-cancer-case.differentiationGrade
Definition

Degree of resemblance of the tumour cells to the original tissue (differentiation grade).

ShortDifferentiation grade (fld_df)
Control0..1
BindingThe codes SHALL be taken from BCR Differentiation Grade
(required to https://www.ehealth.fgov.be/standards/fhir/registries/bcr/ValueSet/bcr-differentiation-grade-vs)
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
30. bcr-cancer-case.laterality
Definition

Laterality of the tumour (e.g. left, right, bilateral, midline, not applicable).

ShortLaterality (fld_lt)
Control0..1
BindingThe codes SHALL be taken from BCR Laterality
(required to https://www.ehealth.fgov.be/standards/fhir/registries/bcr/ValueSet/bcr-laterality-vs)
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
32. bcr-cancer-case.clinicalT
Definition

Extent of the primary tumour based on evidence acquired before treatment (cT).

ShortClinical T (fld_ct)
Control0..1
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
34. bcr-cancer-case.clinicalN
Definition

Absence or presence and extent of regional lymph node metastasis based on evidence acquired before treatment (cN).

ShortClinical N (fld_cn)
Control0..1
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
36. bcr-cancer-case.clinicalM
Definition

Absence or presence of distant metastasis based on evidence acquired before treatment (cM).

ShortClinical M (fld_cm)
Control0..1
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
38. bcr-cancer-case.clinicalStageGroup
Definition

Combination of clinical TNM categories into prognostic groups.

ShortClinical prognostic stage group (cls_cg)
Control0..1
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
40. bcr-cancer-case.clinicalStageMain
Definition

Combination of clinical TNM categories into main prognostic groups.

ShortClinical main prognostic stage (cStadkort)
Control0..1
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
42. bcr-cancer-case.neoadjuvantTherapyIndicator
Definition

Indicates whether the patient has received neoadjuvant therapy prior to surgical / pathological staging.

ShortNeoadjuvant therapy indicator (ypTNM)
Control0..1
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
44. bcr-cancer-case.pathologicalT
Definition

Extent of the primary tumour based on evidence acquired before treatment, supplemented or modified by additional evidence acquired from surgery and pathological examination (pT).

ShortPathological T (fld_pt)
Control0..1
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
46. bcr-cancer-case.pathologicalN
Definition

Absence or presence and extent of regional lymph node metastasis based on evidence acquired before treatment, supplemented or modified by additional evidence acquired from surgery and pathological examination (pN).

ShortPathological N (fld_pn)
Control0..1
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
48. bcr-cancer-case.pathologicalM
Definition

Absence or presence of distant metastasis based on evidence acquired before treatment, supplemented or modified by additional evidence acquired from surgery and pathological examination (pM).

ShortPathological M (fld_pm)
Control0..1
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
50. bcr-cancer-case.pathologicalStageGroup
Definition

Combination of pathological TNM categories into prognostic groups.

ShortPathological prognostic stage group (cls_pg)
Control0..1
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
52. bcr-cancer-case.pathologicalStageMain
Definition

Combination of pathological TNM categories into main prognostic groups.

ShortPathological main prognostic stage (pStadkort)
Control0..1
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
54. bcr-cancer-case.combinedStage
Definition

Final, consolidated stage based on the clinical stage and the pathological stage.

ShortCombined stage (combstad)
Control0..1
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
56. bcr-cancer-case.combinedStageMain
Definition

Final, consolidated stage based on the first-level clinical stage and the first-level pathological stage.

ShortCombined main stage (combStadkort)
Control0..1
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
58. bcr-cancer-case.iccc3
Definition

International Classification of Childhood Cancer, third edition (Birch-Marsden categorical code).

ShortICCC-3 (repbm)
Control0..1
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
60. bcr-cancer-case.birchMarsdenNumeric
Definition

Birch-Marsden classification expressed in numeric format.

ShortBirch-Marsden numeric (cls_bm)
Control0..1
TypeunsignedInt
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
62. bcr-cancer-case.totalTumours
Definition

Total number of malignant tumours of this patient.

ShortTotal malignant tumours of patient (totaltum)
Control0..1
TypeunsignedInt
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
64. bcr-cancer-case.tumourSequenceNumber
Definition

Place of this tumour in the sequence of malignant tumours of the patient.

ShortSequence place of this tumour (multiple)
Control0..1
TypeunsignedInt
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
66. bcr-cancer-case.breastTumourSequence
Definition

Indicates if the breast tumour is the first primary breast tumour of this patient or a subsequent breast tumour.

ShortBreast tumour sequence indicator (borsttelling)
Control0..1
BindingThe codes SHOULD be taken from BCR Breast Tumour Sequence
(preferred to https://www.ehealth.fgov.be/standards/fhir/registries/bcr/ValueSet/bcr-breast-tumour-sequence-vs)
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
68. bcr-cancer-case.vitalStatus
Definition

Indicates whether the patient is alive, deceased, or lost to follow-up.

ShortVital status (fld_vs)
Control1..1
BindingThe codes SHOULD be taken from BCR Vital Status
(preferred to https://www.ehealth.fgov.be/standards/fhir/registries/bcr/ValueSet/bcr-vital-status-vs)
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
70. bcr-cancer-case.lastObservationDate
Definition

Most recent date among the patient's vital-status dates (last alive date, date of death, lost-to-follow-up date).

ShortMost recent vital-status date (cls_lod)
Control0..1
Typedate
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
72. bcr-cancer-case.lastAliveDate
Definition

Date on which it was last confirmed that the patient was alive.

ShortLast alive date (fld_la)
Control0..1
Typedate
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
74. bcr-cancer-case.dateOfDeath
Definition

Confirmed date of death of the patient.

ShortDate of death (fld_cd)
Control0..1
Typedate
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
76. bcr-cancer-case.lostToFollowUpDate
Definition

Most recent value of the sample date(s), or the date the patient moved abroad.

ShortLost-to-follow-up date (fld_lf)
Control0..1
Typedate
Primitive ValueThis 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. bcr-cancer-case
Definition

Logical model of a single cancer case as published in the Belgian Cancer Registry (BCR) research dataset ("Cancer in Belgium").

This is the exported, derived dataset — patient demographics are pseudonymised, several fields are derived (numeric ICD-10, age categories, region, vital-status dates), and tumour-sequence variables are computed registry-wide.

For the submission form that hospitals fill in for every new diagnosis, see BCRCancerRegistrationForm (Bijlage 55), which is the upstream source of most of the variables here.

Source: BCR — Cancer in Belgium - metadata, version 2, 2025-05-05.

ShortBCR Cancer Case (Logical Model)
Logical ModelInstances of this logical model are not marked to be the target of a Reference
2. bcr-cancer-case.birthDate
Definition

Date of birth of the patient.

ShortDate of birth (fld_bi)
Control0..1
Typedate
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
4. bcr-cancer-case.ageAtIncidence
Definition

Age of the patient at the time of incidence of the tumour, expressed in completed years.

ShortAge at incidence (cls_ag)
Control0..1
TypeunsignedInt
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
6. bcr-cancer-case.ageCategory
Definition

Specific age category of the patient at incidence (BCR-defined classification).

ShortAge category at incidence (cls_ap)
Control0..1
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
8. bcr-cancer-case.region
Definition

Region of the official residence of the patient at the time of incidence of the tumour.

ShortRegion of residence (region)
Control0..1
BindingThe codes SHOULD be taken from BCR Belgian Region
(preferred to https://www.ehealth.fgov.be/standards/fhir/registries/bcr/ValueSet/bcr-region-vs)
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
10. bcr-cancer-case.sexAtBirth
Definition

Sex assigned at birth.

ShortSex at birth (fld_sx)
Control1..1
BindingThe codes SHALL be taken from BCR Sex at Birth
(required to https://www.ehealth.fgov.be/standards/fhir/registries/bcr/ValueSet/bcr-sex-at-birth-vs)
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
12. bcr-cancer-case.incidenceDate
Definition

Date of incidence of the tumour.

ShortDate of incidence (fld_ic)
Control1..1
Typedate
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
14. bcr-cancer-case.incidenceYear
Definition

Year of incidence of the tumour.

ShortYear of incidence (regist)
Control1..1
TypeunsignedInt
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
16. bcr-cancer-case.basisOfDiagnosis
Definition

Most reliable method by which the diagnosis was made.

ShortBasis of diagnosis (fld_dp)
Control1..1
BindingThe codes SHALL be taken from BCR Basis of Diagnosis
(required to https://www.ehealth.fgov.be/standards/fhir/registries/bcr/ValueSet/bcr-basis-of-diagnosis-vs)
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
18. bcr-cancer-case.icd10
Definition

ICD-10 code of the histology, as a string.

ShortICD-10 code (icd10)
Control0..1
BindingUnless not suitable, these codes SHALL be taken from BCR ICD-10
(extensible to https://www.ehealth.fgov.be/standards/fhir/registries/bcr/ValueSet/bcr-icd10-vs)
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
20. bcr-cancer-case.icd10Numeric
Definition

ICD-10 expressed as a numeric code, derived by BCR from the registered topography/morphology combination because ICD-10 is not registered by the sources.

ShortICD-10 (numeric, BCR-derived) (cls_dg)
Control0..1
Typestring
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
22. bcr-cancer-case.topography
Definition

Organ or tissue from which the primary tumour originated (ICD-O-3 topography).

ShortTopography (fld_tp)
Control1..1
BindingUnless not suitable, these codes SHALL be taken from BCR ICD-O-3 Topography
(extensible to https://www.ehealth.fgov.be/standards/fhir/registries/bcr/ValueSet/bcr-topography-vs)
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
24. bcr-cancer-case.morphology
Definition

Histology of the tumour (ICD-O-3 morphology).

ShortMorphology (fld_mp)
Control1..1
BindingUnless not suitable, these codes SHALL be taken from BCR ICD-O-3 Morphology
(extensible to https://www.ehealth.fgov.be/standards/fhir/registries/bcr/ValueSet/bcr-morphology-vs)
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
26. bcr-cancer-case.behaviour
Definition

Behaviour of the tumour (ICD-O-3 behaviour code: benign, borderline, in situ, malignant, etc.).

ShortBehaviour (fld_bh)
Control1..1
BindingThe codes SHALL be taken from BCR ICD-O-3 Behaviour (digit only)
(required to https://www.ehealth.fgov.be/standards/fhir/registries/bcr/ValueSet/bcr-behaviour-vs)
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
28. bcr-cancer-case.differentiationGrade
Definition

Degree of resemblance of the tumour cells to the original tissue (differentiation grade).

ShortDifferentiation grade (fld_df)
Control0..1
BindingThe codes SHALL be taken from BCR Differentiation Grade
(required to https://www.ehealth.fgov.be/standards/fhir/registries/bcr/ValueSet/bcr-differentiation-grade-vs)
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
30. bcr-cancer-case.laterality
Definition

Laterality of the tumour (e.g. left, right, bilateral, midline, not applicable).

ShortLaterality (fld_lt)
Control0..1
BindingThe codes SHALL be taken from BCR Laterality
(required to https://www.ehealth.fgov.be/standards/fhir/registries/bcr/ValueSet/bcr-laterality-vs)
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
32. bcr-cancer-case.clinicalT
Definition

Extent of the primary tumour based on evidence acquired before treatment (cT).

ShortClinical T (fld_ct)
Control0..1
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
34. bcr-cancer-case.clinicalN
Definition

Absence or presence and extent of regional lymph node metastasis based on evidence acquired before treatment (cN).

ShortClinical N (fld_cn)
Control0..1
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
36. bcr-cancer-case.clinicalM
Definition

Absence or presence of distant metastasis based on evidence acquired before treatment (cM).

ShortClinical M (fld_cm)
Control0..1
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
38. bcr-cancer-case.clinicalStageGroup
Definition

Combination of clinical TNM categories into prognostic groups.

ShortClinical prognostic stage group (cls_cg)
Control0..1
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
40. bcr-cancer-case.clinicalStageMain
Definition

Combination of clinical TNM categories into main prognostic groups.

ShortClinical main prognostic stage (cStadkort)
Control0..1
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
42. bcr-cancer-case.neoadjuvantTherapyIndicator
Definition

Indicates whether the patient has received neoadjuvant therapy prior to surgical / pathological staging.

ShortNeoadjuvant therapy indicator (ypTNM)
Control0..1
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
44. bcr-cancer-case.pathologicalT
Definition

Extent of the primary tumour based on evidence acquired before treatment, supplemented or modified by additional evidence acquired from surgery and pathological examination (pT).

ShortPathological T (fld_pt)
Control0..1
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
46. bcr-cancer-case.pathologicalN
Definition

Absence or presence and extent of regional lymph node metastasis based on evidence acquired before treatment, supplemented or modified by additional evidence acquired from surgery and pathological examination (pN).

ShortPathological N (fld_pn)
Control0..1
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
48. bcr-cancer-case.pathologicalM
Definition

Absence or presence of distant metastasis based on evidence acquired before treatment, supplemented or modified by additional evidence acquired from surgery and pathological examination (pM).

ShortPathological M (fld_pm)
Control0..1
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
50. bcr-cancer-case.pathologicalStageGroup
Definition

Combination of pathological TNM categories into prognostic groups.

ShortPathological prognostic stage group (cls_pg)
Control0..1
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
52. bcr-cancer-case.pathologicalStageMain
Definition

Combination of pathological TNM categories into main prognostic groups.

ShortPathological main prognostic stage (pStadkort)
Control0..1
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
54. bcr-cancer-case.combinedStage
Definition

Final, consolidated stage based on the clinical stage and the pathological stage.

ShortCombined stage (combstad)
Control0..1
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
56. bcr-cancer-case.combinedStageMain
Definition

Final, consolidated stage based on the first-level clinical stage and the first-level pathological stage.

ShortCombined main stage (combStadkort)
Control0..1
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
58. bcr-cancer-case.iccc3
Definition

International Classification of Childhood Cancer, third edition (Birch-Marsden categorical code).

ShortICCC-3 (repbm)
Control0..1
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
60. bcr-cancer-case.birchMarsdenNumeric
Definition

Birch-Marsden classification expressed in numeric format.

ShortBirch-Marsden numeric (cls_bm)
Control0..1
TypeunsignedInt
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
62. bcr-cancer-case.totalTumours
Definition

Total number of malignant tumours of this patient.

ShortTotal malignant tumours of patient (totaltum)
Control0..1
TypeunsignedInt
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
64. bcr-cancer-case.tumourSequenceNumber
Definition

Place of this tumour in the sequence of malignant tumours of the patient.

ShortSequence place of this tumour (multiple)
Control0..1
TypeunsignedInt
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
66. bcr-cancer-case.breastTumourSequence
Definition

Indicates if the breast tumour is the first primary breast tumour of this patient or a subsequent breast tumour.

ShortBreast tumour sequence indicator (borsttelling)
Control0..1
BindingThe codes SHOULD be taken from BCR Breast Tumour Sequence
(preferred to https://www.ehealth.fgov.be/standards/fhir/registries/bcr/ValueSet/bcr-breast-tumour-sequence-vs)
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
68. bcr-cancer-case.vitalStatus
Definition

Indicates whether the patient is alive, deceased, or lost to follow-up.

ShortVital status (fld_vs)
Control1..1
BindingThe codes SHOULD be taken from BCR Vital Status
(preferred to https://www.ehealth.fgov.be/standards/fhir/registries/bcr/ValueSet/bcr-vital-status-vs)
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
70. bcr-cancer-case.lastObservationDate
Definition

Most recent date among the patient's vital-status dates (last alive date, date of death, lost-to-follow-up date).

ShortMost recent vital-status date (cls_lod)
Control0..1
Typedate
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
72. bcr-cancer-case.lastAliveDate
Definition

Date on which it was last confirmed that the patient was alive.

ShortLast alive date (fld_la)
Control0..1
Typedate
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
74. bcr-cancer-case.dateOfDeath
Definition

Confirmed date of death of the patient.

ShortDate of death (fld_cd)
Control0..1
Typedate
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
76. bcr-cancer-case.lostToFollowUpDate
Definition

Most recent value of the sample date(s), or the date the patient moved abroad.

ShortLost-to-follow-up date (fld_lf)
Control0..1
Typedate
Primitive ValueThis 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. bcr-cancer-case
Definition

Logical model of a single cancer case as published in the Belgian Cancer Registry (BCR) research dataset ("Cancer in Belgium").

This is the exported, derived dataset — patient demographics are pseudonymised, several fields are derived (numeric ICD-10, age categories, region, vital-status dates), and tumour-sequence variables are computed registry-wide.

For the submission form that hospitals fill in for every new diagnosis, see BCRCancerRegistrationForm (Bijlage 55), which is the upstream source of most of the variables here.

Source: BCR — Cancer in Belgium - metadata, version 2, 2025-05-05.

ShortBCR Cancer Case (Logical Model)
Control0..*
Is Modifierfalse
Logical ModelInstances of this logical model are not marked to be the target of a Reference
2. bcr-cancer-case.birthDate
Definition

Date of birth of the patient.

ShortDate of birth (fld_bi)
Control0..1
Typedate
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
4. bcr-cancer-case.ageAtIncidence
Definition

Age of the patient at the time of incidence of the tumour, expressed in completed years.

ShortAge at incidence (cls_ag)
Control0..1
TypeunsignedInt
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
6. bcr-cancer-case.ageCategory
Definition

Specific age category of the patient at incidence (BCR-defined classification).

ShortAge category at incidence (cls_ap)
Control0..1
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
8. bcr-cancer-case.region
Definition

Region of the official residence of the patient at the time of incidence of the tumour.

ShortRegion of residence (region)
Control0..1
BindingThe codes SHOULD be taken from BCR Belgian Region
(preferred to https://www.ehealth.fgov.be/standards/fhir/registries/bcr/ValueSet/bcr-region-vs)
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
10. bcr-cancer-case.sexAtBirth
Definition

Sex assigned at birth.

ShortSex at birth (fld_sx)
Control1..1
BindingThe codes SHALL be taken from BCR Sex at Birth
(required to https://www.ehealth.fgov.be/standards/fhir/registries/bcr/ValueSet/bcr-sex-at-birth-vs)
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
12. bcr-cancer-case.incidenceDate
Definition

Date of incidence of the tumour.

ShortDate of incidence (fld_ic)
Control1..1
Typedate
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
14. bcr-cancer-case.incidenceYear
Definition

Year of incidence of the tumour.

ShortYear of incidence (regist)
Control1..1
TypeunsignedInt
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
16. bcr-cancer-case.basisOfDiagnosis
Definition

Most reliable method by which the diagnosis was made.

ShortBasis of diagnosis (fld_dp)
Control1..1
BindingThe codes SHALL be taken from BCR Basis of Diagnosis
(required to https://www.ehealth.fgov.be/standards/fhir/registries/bcr/ValueSet/bcr-basis-of-diagnosis-vs)
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
18. bcr-cancer-case.icd10
Definition

ICD-10 code of the histology, as a string.

ShortICD-10 code (icd10)
Control0..1
BindingUnless not suitable, these codes SHALL be taken from BCR ICD-10
(extensible to https://www.ehealth.fgov.be/standards/fhir/registries/bcr/ValueSet/bcr-icd10-vs)
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
20. bcr-cancer-case.icd10Numeric
Definition

ICD-10 expressed as a numeric code, derived by BCR from the registered topography/morphology combination because ICD-10 is not registered by the sources.

ShortICD-10 (numeric, BCR-derived) (cls_dg)
Control0..1
Typestring
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
22. bcr-cancer-case.topography
Definition

Organ or tissue from which the primary tumour originated (ICD-O-3 topography).

ShortTopography (fld_tp)
Control1..1
BindingUnless not suitable, these codes SHALL be taken from BCR ICD-O-3 Topography
(extensible to https://www.ehealth.fgov.be/standards/fhir/registries/bcr/ValueSet/bcr-topography-vs)
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
24. bcr-cancer-case.morphology
Definition

Histology of the tumour (ICD-O-3 morphology).

ShortMorphology (fld_mp)
Control1..1
BindingUnless not suitable, these codes SHALL be taken from BCR ICD-O-3 Morphology
(extensible to https://www.ehealth.fgov.be/standards/fhir/registries/bcr/ValueSet/bcr-morphology-vs)
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
26. bcr-cancer-case.behaviour
Definition

Behaviour of the tumour (ICD-O-3 behaviour code: benign, borderline, in situ, malignant, etc.).

ShortBehaviour (fld_bh)
Control1..1
BindingThe codes SHALL be taken from BCR ICD-O-3 Behaviour (digit only)
(required to https://www.ehealth.fgov.be/standards/fhir/registries/bcr/ValueSet/bcr-behaviour-vs)
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
28. bcr-cancer-case.differentiationGrade
Definition

Degree of resemblance of the tumour cells to the original tissue (differentiation grade).

ShortDifferentiation grade (fld_df)
Control0..1
BindingThe codes SHALL be taken from BCR Differentiation Grade
(required to https://www.ehealth.fgov.be/standards/fhir/registries/bcr/ValueSet/bcr-differentiation-grade-vs)
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
30. bcr-cancer-case.laterality
Definition

Laterality of the tumour (e.g. left, right, bilateral, midline, not applicable).

ShortLaterality (fld_lt)
Control0..1
BindingThe codes SHALL be taken from BCR Laterality
(required to https://www.ehealth.fgov.be/standards/fhir/registries/bcr/ValueSet/bcr-laterality-vs)
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
32. bcr-cancer-case.clinicalT
Definition

Extent of the primary tumour based on evidence acquired before treatment (cT).

ShortClinical T (fld_ct)
Control0..1
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
34. bcr-cancer-case.clinicalN
Definition

Absence or presence and extent of regional lymph node metastasis based on evidence acquired before treatment (cN).

ShortClinical N (fld_cn)
Control0..1
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
36. bcr-cancer-case.clinicalM
Definition

Absence or presence of distant metastasis based on evidence acquired before treatment (cM).

ShortClinical M (fld_cm)
Control0..1
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
38. bcr-cancer-case.clinicalStageGroup
Definition

Combination of clinical TNM categories into prognostic groups.

ShortClinical prognostic stage group (cls_cg)
Control0..1
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
40. bcr-cancer-case.clinicalStageMain
Definition

Combination of clinical TNM categories into main prognostic groups.

ShortClinical main prognostic stage (cStadkort)
Control0..1
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
42. bcr-cancer-case.neoadjuvantTherapyIndicator
Definition

Indicates whether the patient has received neoadjuvant therapy prior to surgical / pathological staging.

ShortNeoadjuvant therapy indicator (ypTNM)
Control0..1
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
44. bcr-cancer-case.pathologicalT
Definition

Extent of the primary tumour based on evidence acquired before treatment, supplemented or modified by additional evidence acquired from surgery and pathological examination (pT).

ShortPathological T (fld_pt)
Control0..1
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
46. bcr-cancer-case.pathologicalN
Definition

Absence or presence and extent of regional lymph node metastasis based on evidence acquired before treatment, supplemented or modified by additional evidence acquired from surgery and pathological examination (pN).

ShortPathological N (fld_pn)
Control0..1
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
48. bcr-cancer-case.pathologicalM
Definition

Absence or presence of distant metastasis based on evidence acquired before treatment, supplemented or modified by additional evidence acquired from surgery and pathological examination (pM).

ShortPathological M (fld_pm)
Control0..1
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
50. bcr-cancer-case.pathologicalStageGroup
Definition

Combination of pathological TNM categories into prognostic groups.

ShortPathological prognostic stage group (cls_pg)
Control0..1
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
52. bcr-cancer-case.pathologicalStageMain
Definition

Combination of pathological TNM categories into main prognostic groups.

ShortPathological main prognostic stage (pStadkort)
Control0..1
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
54. bcr-cancer-case.combinedStage
Definition

Final, consolidated stage based on the clinical stage and the pathological stage.

ShortCombined stage (combstad)
Control0..1
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
56. bcr-cancer-case.combinedStageMain
Definition

Final, consolidated stage based on the first-level clinical stage and the first-level pathological stage.

ShortCombined main stage (combStadkort)
Control0..1
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
58. bcr-cancer-case.iccc3
Definition

International Classification of Childhood Cancer, third edition (Birch-Marsden categorical code).

ShortICCC-3 (repbm)
Control0..1
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
60. bcr-cancer-case.birchMarsdenNumeric
Definition

Birch-Marsden classification expressed in numeric format.

ShortBirch-Marsden numeric (cls_bm)
Control0..1
TypeunsignedInt
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
62. bcr-cancer-case.totalTumours
Definition

Total number of malignant tumours of this patient.

ShortTotal malignant tumours of patient (totaltum)
Control0..1
TypeunsignedInt
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
64. bcr-cancer-case.tumourSequenceNumber
Definition

Place of this tumour in the sequence of malignant tumours of the patient.

ShortSequence place of this tumour (multiple)
Control0..1
TypeunsignedInt
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
66. bcr-cancer-case.breastTumourSequence
Definition

Indicates if the breast tumour is the first primary breast tumour of this patient or a subsequent breast tumour.

ShortBreast tumour sequence indicator (borsttelling)
Control0..1
BindingThe codes SHOULD be taken from BCR Breast Tumour Sequence
(preferred to https://www.ehealth.fgov.be/standards/fhir/registries/bcr/ValueSet/bcr-breast-tumour-sequence-vs)
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
68. bcr-cancer-case.vitalStatus
Definition

Indicates whether the patient is alive, deceased, or lost to follow-up.

ShortVital status (fld_vs)
Control1..1
BindingThe codes SHOULD be taken from BCR Vital Status
(preferred to https://www.ehealth.fgov.be/standards/fhir/registries/bcr/ValueSet/bcr-vital-status-vs)
Typecode
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
70. bcr-cancer-case.lastObservationDate
Definition

Most recent date among the patient's vital-status dates (last alive date, date of death, lost-to-follow-up date).

ShortMost recent vital-status date (cls_lod)
Control0..1
Typedate
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
72. bcr-cancer-case.lastAliveDate
Definition

Date on which it was last confirmed that the patient was alive.

ShortLast alive date (fld_la)
Control0..1
Typedate
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
74. bcr-cancer-case.dateOfDeath
Definition

Confirmed date of death of the patient.

ShortDate of death (fld_cd)
Control0..1
Typedate
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
76. bcr-cancer-case.lostToFollowUpDate
Definition

Most recent value of the sample date(s), or the date the patient moved abroad.

ShortLost-to-follow-up date (fld_lf)
Control0..1
Typedate
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension