CH EKM (R4)
0.0.1 - ci-build Switzerland flag

CH EKM (R4), published by Federal Office of Public Health FOPH. This guide is not an authorized publication; it is the continuous build for version 0.0.1 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/ahdis/ch-ekm/ and changes regularly. See the Directory of published versions

Logical Model: ChEkmExposureForm - Detailed Descriptions

Draft as of 2026-08-12

Definitions for the ChEkmExposureForm logical model.

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

0. ChEkmExposureForm
Definition

Logical model for the form section 'Exposure' (German form: 'Exposition'). One element per form item.

ShortCH EKM Form: Exposure
Control0..*
Is Modifierfalse
Logical ModelInstances of this logical model are not marked to be the target of a Reference
2. ChEkmExposureForm.where
Definition

Wo

ShortWo
Control0..1
TypeBase
4. ChEkmExposureForm.where.country
Definition

Land

ShortLand
Control0..1
BindingThe codes SHALL be taken from CH EKM Country Codes (form)
(required to http://fhir.ch/ig/ch-ekm/ValueSet/ChEkmCountryCodes)
TypeCodeableConcept
6. ChEkmExposureForm.where.preciseLocation
Definition

Precise location (Switzerland/Liechtenstein and abroad)

ShortPrecise location (Switzerland/Liechtenstein and abroad)
Control0..1
Typestring
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
8. ChEkmExposureForm.where.unknown
Definition

Unknown - the place of exposure is explicitly reported as unknown. Open point (issue #26): not yet defined whether this refers to the country, the precise location or both; modelled as 'the whole where is unknown'.

ShortUnknown - the place of exposure is explicitly reported as unknown. Open point (issue #26): not yet defined whether this refers to the country, the precise location or both; modelled as 'the whole where is unknown'.
Control0..1
Typeboolean
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
10. ChEkmExposureForm.when
Definition

Wann

ShortWann
Control0..1
TypeBase
12. ChEkmExposureForm.when.exposureDate
Definition

Most probable point in time of infection. May be a partial date (year / year-month).

ShortMost probable point in time of infection. May be a partial date (year / year-month).
Control0..1
TypedateTime
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
14. ChEkmExposureForm.when.lastEntryDate
Definition

Date of the last entry into Switzerland - only asked when the most probable point in time of infection is unknown

ShortDate of the last entry into Switzerland - only asked when the most probable point in time of infection is unknown
Control0..1
TypedateTime
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. ChEkmExposureForm
Definition

Logical model for the form section 'Exposure' (German form: 'Exposition'). One element per form item.

ShortCH EKM Form: Exposure
Logical ModelInstances of this logical model are not marked to be the target of a Reference
2. ChEkmExposureForm.where
Definition

Wo

ShortWo
Control0..1
TypeBase
4. ChEkmExposureForm.where.country
Definition

Land

ShortLand
Control0..1
BindingThe codes SHALL be taken from CH EKM Country Codes (form)
(required to http://fhir.ch/ig/ch-ekm/ValueSet/ChEkmCountryCodes)
TypeCodeableConcept
6. ChEkmExposureForm.where.preciseLocation
Definition

Precise location (Switzerland/Liechtenstein and abroad)

ShortPrecise location (Switzerland/Liechtenstein and abroad)
Control0..1
Typestring
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
8. ChEkmExposureForm.where.unknown
Definition

Unknown - the place of exposure is explicitly reported as unknown. Open point (issue #26): not yet defined whether this refers to the country, the precise location or both; modelled as 'the whole where is unknown'.

ShortUnknown - the place of exposure is explicitly reported as unknown. Open point (issue #26): not yet defined whether this refers to the country, the precise location or both; modelled as 'the whole where is unknown'.
Control0..1
Typeboolean
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
10. ChEkmExposureForm.when
Definition

Wann

ShortWann
Control0..1
TypeBase
12. ChEkmExposureForm.when.exposureDate
Definition

Most probable point in time of infection. May be a partial date (year / year-month).

ShortMost probable point in time of infection. May be a partial date (year / year-month).
Control0..1
TypedateTime
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
14. ChEkmExposureForm.when.lastEntryDate
Definition

Date of the last entry into Switzerland - only asked when the most probable point in time of infection is unknown

ShortDate of the last entry into Switzerland - only asked when the most probable point in time of infection is unknown
Control0..1
TypedateTime
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. ChEkmExposureForm
Definition

Logical model for the form section 'Exposure' (German form: 'Exposition'). One element per form item.

ShortCH EKM Form: Exposure
Control0..*
Is Modifierfalse
Logical ModelInstances of this logical model are not marked to be the target of a Reference
2. ChEkmExposureForm.where
Definition

Wo

ShortWo
Control0..1
TypeBase
4. ChEkmExposureForm.where.country
Definition

Land

ShortLand
Control0..1
BindingThe codes SHALL be taken from CH EKM Country Codes (form)
(required to http://fhir.ch/ig/ch-ekm/ValueSet/ChEkmCountryCodes)
TypeCodeableConcept
6. ChEkmExposureForm.where.preciseLocation
Definition

Precise location (Switzerland/Liechtenstein and abroad)

ShortPrecise location (Switzerland/Liechtenstein and abroad)
Control0..1
Typestring
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
8. ChEkmExposureForm.where.unknown
Definition

Unknown - the place of exposure is explicitly reported as unknown. Open point (issue #26): not yet defined whether this refers to the country, the precise location or both; modelled as 'the whole where is unknown'.

ShortUnknown - the place of exposure is explicitly reported as unknown. Open point (issue #26): not yet defined whether this refers to the country, the precise location or both; modelled as 'the whole where is unknown'.
Control0..1
Typeboolean
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
10. ChEkmExposureForm.when
Definition

Wann

ShortWann
Control0..1
TypeBase
12. ChEkmExposureForm.when.exposureDate
Definition

Most probable point in time of infection. May be a partial date (year / year-month).

ShortMost probable point in time of infection. May be a partial date (year / year-month).
Control0..1
TypedateTime
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
14. ChEkmExposureForm.when.lastEntryDate
Definition

Date of the last entry into Switzerland - only asked when the most probable point in time of infection is unknown

ShortDate of the last entry into Switzerland - only asked when the most probable point in time of infection is unknown
Control0..1
TypedateTime
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension