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).

Reference to the cancer condition at first diagnosis for which the stage is reported.

Staging classification system used when the staging system needs to be explicitly identified (e.g. TNM).

For TNM, this element should be populated with 'TNM'. For single-value systems, it may be omitted when the system/measure is represented through stageComponent.code.

One or more staging values expressed as (code, value) pairs.

Most staging systems are represented by a single component. TNM is represented by three components, one for each of T, N, and M (codes 'T', 'N', 'M').

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Identifies which staging element is being reported (e.g. T category, N category, M category, stage group).

For single-value staging systems, this represents the staging system/measure being used (e.g. 'FIGO stage group'). For TNM, expected codes include 'T', 'N', and 'M'.

Value associated with the reported staging element (e.g. T2, N1, M0; or a stage group value).

For TNM, this carries the component value (e.g. T2, N0, M0). For single-value systems, this carries the stage group/value (e.g. IIIB).

It indicates whether the stage instance is of type Clinical or Pathological.

It indicates whether the stage instance is of type Clinical or Pathological. Choice: Clinical | Pathological

Reference(s) to the evidence used to define the stage: imaging in case of a Clinical stage, or surgery in case of a Pathological stage.

It shall be present. The reference shall be to one or more imaging procedures in case the stage is Clinical, or to one surgery in case the stage is Pathological.

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).

Reference to the cancer condition at first diagnosis for which the stage is reported.

Staging classification system used when the staging system needs to be explicitly identified (e.g. TNM).

For TNM, this element should be populated with 'TNM'. For single-value systems, it may be omitted when the system/measure is represented through stageComponent.code.

One or more staging values expressed as (code, value) pairs.

Most staging systems are represented by a single component. TNM is represented by three components, one for each of T, N, and M (codes 'T', 'N', 'M').

Identifies which staging element is being reported (e.g. T category, N category, M category, stage group).

For single-value staging systems, this represents the staging system/measure being used (e.g. 'FIGO stage group'). For TNM, expected codes include 'T', 'N', and 'M'.

Value associated with the reported staging element (e.g. T2, N1, M0; or a stage group value).

For TNM, this carries the component value (e.g. T2, N0, M0). For single-value systems, this carries the stage group/value (e.g. IIIB).

It indicates whether the stage instance is of type Clinical or Pathological.

It indicates whether the stage instance is of type Clinical or Pathological. Choice: Clinical | Pathological

Reference(s) to the evidence used to define the stage: imaging in case of a Clinical stage, or surgery in case of a Pathological stage.

It shall be present. The reference shall be to one or more imaging procedures in case the stage is Clinical, or to one surgery in case the stage is Pathological.

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).

Reference to the cancer condition at first diagnosis for which the stage is reported.

Staging classification system used when the staging system needs to be explicitly identified (e.g. TNM).

For TNM, this element should be populated with 'TNM'. For single-value systems, it may be omitted when the system/measure is represented through stageComponent.code.

One or more staging values expressed as (code, value) pairs.

Most staging systems are represented by a single component. TNM is represented by three components, one for each of T, N, and M (codes 'T', 'N', 'M').

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Identifies which staging element is being reported (e.g. T category, N category, M category, stage group).

For single-value staging systems, this represents the staging system/measure being used (e.g. 'FIGO stage group'). For TNM, expected codes include 'T', 'N', and 'M'.

Value associated with the reported staging element (e.g. T2, N1, M0; or a stage group value).

For TNM, this carries the component value (e.g. T2, N0, M0). For single-value systems, this carries the stage group/value (e.g. IIIB).

It indicates whether the stage instance is of type Clinical or Pathological.

It indicates whether the stage instance is of type Clinical or Pathological. Choice: Clinical | Pathological

Reference(s) to the evidence used to define the stage: imaging in case of a Clinical stage, or surgery in case of a Pathological stage.

It shall be present. The reference shall be to one or more imaging procedures in case the stage is Clinical, or to one surgery in case the stage is Pathological.