German Practice Management FHIR Profiles (R4)
0.49.0 - STU1 Germany flag

German Practice Management FHIR Profiles (R4) - Local Development build (v0.49.0) built by the FHIR (HL7® FHIR® Standard) Build Tools. See the Directory of published versions

Extension: Radiation Dose

Official URL: https://fhir.cognovis.de/praxis/StructureDefinition/radiation-dose Version: 0.49.0
Active as of 2026-05-04 Computable Name: RadiationDoseExt
Other Identifiers: OID:2.16.840.1.113883.3.7985.42.184

Radiation dose parameters for X-ray procedures. Captures Dose Area Product (DAP in microGy*m2), effective dose (microSv), tube voltage (kVp in kV), tube current (mA), and exposure time (s). Combined with the Procedure resource (patient, date, body region, examination type), satisfies the documentation requirements of 85 StrlSchG (examination recordkeeping duty) and 85 StrlSchG (examination recordkeeping duty) and

Context of Use

    This extension may be used on the following element(s)

Usage info

Usages:

You can also check for usages in the FHIR IG Statistics

Formal Views of Extension Content

Description of Profiles, Differentials, Snapshots, and how the XML and JSON presentations work.

This structure is derived from Extension

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Extension 0..* Extension Radiation Dose
... Slices for extension Content/Rules for all slices
.... extension:dap S 0..1 Extension Dosis-Flaechenprodukt (DAP) in microGy*m2
..... extension 0..0 Extension
..... url 1..1 uri "dap"
..... value[x] 0..1 Quantity Value of extension
...... system 0..1 uri System that defines coded unit form
Required Pattern: http://unitsofmeasure.org
...... code 0..1 code Coded form of the unit
Required Pattern: uGy.m2
.... extension:effectiveDose S 0..1 Extension Effektive Dosis in microSv
..... extension 0..0 Extension
..... url 1..1 uri "effectiveDose"
..... value[x] 0..1 Quantity Value of extension
...... system 0..1 uri System that defines coded unit form
Required Pattern: http://unitsofmeasure.org
...... code 0..1 code Coded form of the unit
Required Pattern: uSv
.... extension:kvp S 0..1 Extension Roehrenspannung (kVp) in kV
..... extension 0..0 Extension
..... url 1..1 uri "kvp"
..... value[x] 0..1 Quantity Value of extension
...... system 0..1 uri System that defines coded unit form
Required Pattern: http://unitsofmeasure.org
...... code 0..1 code Coded form of the unit
Required Pattern: kV
.... extension:tubeCurrent S 0..1 Extension Roehrenstrom in mA
..... extension 0..0 Extension
..... url 1..1 uri "tubeCurrent"
..... value[x] 0..1 Quantity Value of extension
...... system 0..1 uri System that defines coded unit form
Required Pattern: http://unitsofmeasure.org
...... code 0..1 code Coded form of the unit
Required Pattern: mA
.... extension:exposureTime S 0..1 Extension Belichtungszeit in Sekunden
..... extension 0..0 Extension
..... url 1..1 uri "exposureTime"
..... value[x] 0..1 Quantity Value of extension
...... system 0..1 uri System that defines coded unit form
Required Pattern: http://unitsofmeasure.org
...... code 0..1 code Coded form of the unit
Required Pattern: s
... url 1..1 uri "https://fhir.cognovis.de/praxis/StructureDefinition/radiation-dose"
... value[x] 0..0 Value of extension

doco Documentation for this format
NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Extension 0..* Extension Radiation Dose
... id 0..1 string Unique id for inter-element referencing
... Slices for extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
.... extension:dap S 0..1 Extension Dosis-Flaechenprodukt (DAP) in microGy*m2
..... id 0..1 string Unique id for inter-element referencing
..... extension 0..0 Extension
Slice: Unordered, Open by value:url
..... url 1..1 uri "dap"
..... value[x] 0..1 Quantity Value of extension
...... id 0..1 string Unique id for inter-element referencing
...... extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
...... value Σ 0..1 decimal Numerical value (with implicit precision)
...... comparator ?!Σ 0..1 code < | <= | >= | > - how to understand the value
Binding: QuantityComparator (required): How the Quantity should be understood and represented.
...... unit Σ 0..1 string Unit representation
...... system ΣC 0..1 uri System that defines coded unit form
Required Pattern: http://unitsofmeasure.org
...... code Σ 0..1 code Coded form of the unit
Required Pattern: uGy.m2
.... extension:effectiveDose S 0..1 Extension Effektive Dosis in microSv
..... id 0..1 string Unique id for inter-element referencing
..... extension 0..0 Extension
Slice: Unordered, Open by value:url
..... url 1..1 uri "effectiveDose"
..... value[x] 0..1 Quantity Value of extension
...... id 0..1 string Unique id for inter-element referencing
...... extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
...... value Σ 0..1 decimal Numerical value (with implicit precision)
...... comparator ?!Σ 0..1 code < | <= | >= | > - how to understand the value
Binding: QuantityComparator (required): How the Quantity should be understood and represented.
...... unit Σ 0..1 string Unit representation
...... system ΣC 0..1 uri System that defines coded unit form
Required Pattern: http://unitsofmeasure.org
...... code Σ 0..1 code Coded form of the unit
Required Pattern: uSv
.... extension:kvp S 0..1 Extension Roehrenspannung (kVp) in kV
..... id 0..1 string Unique id for inter-element referencing
..... extension 0..0 Extension
Slice: Unordered, Open by value:url
..... url 1..1 uri "kvp"
..... value[x] 0..1 Quantity Value of extension
...... id 0..1 string Unique id for inter-element referencing
...... extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
...... value Σ 0..1 decimal Numerical value (with implicit precision)
...... comparator ?!Σ 0..1 code < | <= | >= | > - how to understand the value
Binding: QuantityComparator (required): How the Quantity should be understood and represented.
...... unit Σ 0..1 string Unit representation
...... system ΣC 0..1 uri System that defines coded unit form
Required Pattern: http://unitsofmeasure.org
...... code Σ 0..1 code Coded form of the unit
Required Pattern: kV
.... extension:tubeCurrent S 0..1 Extension Roehrenstrom in mA
..... id 0..1 string Unique id for inter-element referencing
..... extension 0..0 Extension
Slice: Unordered, Open by value:url
..... url 1..1 uri "tubeCurrent"
..... value[x] 0..1 Quantity Value of extension
...... id 0..1 string Unique id for inter-element referencing
...... extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
...... value Σ 0..1 decimal Numerical value (with implicit precision)
...... comparator ?!Σ 0..1 code < | <= | >= | > - how to understand the value
Binding: QuantityComparator (required): How the Quantity should be understood and represented.
...... unit Σ 0..1 string Unit representation
...... system ΣC 0..1 uri System that defines coded unit form
Required Pattern: http://unitsofmeasure.org
...... code Σ 0..1 code Coded form of the unit
Required Pattern: mA
.... extension:exposureTime S 0..1 Extension Belichtungszeit in Sekunden
..... id 0..1 string Unique id for inter-element referencing
..... extension 0..0 Extension
Slice: Unordered, Open by value:url
..... url 1..1 uri "exposureTime"
..... value[x] 0..1 Quantity Value of extension
...... id 0..1 string Unique id for inter-element referencing
...... extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
...... value Σ 0..1 decimal Numerical value (with implicit precision)
...... comparator ?!Σ 0..1 code < | <= | >= | > - how to understand the value
Binding: QuantityComparator (required): How the Quantity should be understood and represented.
...... unit Σ 0..1 string Unit representation
...... system ΣC 0..1 uri System that defines coded unit form
Required Pattern: http://unitsofmeasure.org
...... code Σ 0..1 code Coded form of the unit
Required Pattern: s
... url 1..1 uri "https://fhir.cognovis.de/praxis/StructureDefinition/radiation-dose"

doco Documentation for this format

This structure is derived from Extension

Summary

Complex Extension: Radiation dose parameters for X-ray procedures. Captures Dose Area Product (DAP in microGy*m2), effective dose (microSv), tube voltage (kVp in kV), tube current (mA), and exposure time (s). Combined with the Procedure resource (patient, date, body region, examination type), satisfies the documentation requirements of 85 StrlSchG (examination recordkeeping duty) and 85 StrlSchG (examination recordkeeping duty) and

  • dap: Quantity: Dosis-Flaechenprodukt (Dose Area Product, DAP) in Mikrogray mal Quadratmeter (microGy*m2). DICOM Tag 0018,115E.
  • effectiveDose: Quantity: Effektive Dosis in Mikrosievert (microSv). Abgeleitete Groesse aus Dosislaengprodukt und Koerperstelle.
  • kvp: Quantity: Spitzenroehrenspannung (Peak kV) der Roentgenroehre in Kilovolt. DICOM Tag 0018,0060.
  • tubeCurrent: Quantity: Roehrenstrom der Roentgenroehre in Milliampere (mA). DICOM Tag 0018,1151.
  • exposureTime: Quantity: Belichtungszeit der Roentgenaufnahme in Sekunden. DICOM Tag 0018,1150.

Differential View

This structure is derived from Extension

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Extension 0..* Extension Radiation Dose
... Slices for extension Content/Rules for all slices
.... extension:dap S 0..1 Extension Dosis-Flaechenprodukt (DAP) in microGy*m2
..... extension 0..0 Extension
..... url 1..1 uri "dap"
..... value[x] 0..1 Quantity Value of extension
...... system 0..1 uri System that defines coded unit form
Required Pattern: http://unitsofmeasure.org
...... code 0..1 code Coded form of the unit
Required Pattern: uGy.m2
.... extension:effectiveDose S 0..1 Extension Effektive Dosis in microSv
..... extension 0..0 Extension
..... url 1..1 uri "effectiveDose"
..... value[x] 0..1 Quantity Value of extension
...... system 0..1 uri System that defines coded unit form
Required Pattern: http://unitsofmeasure.org
...... code 0..1 code Coded form of the unit
Required Pattern: uSv
.... extension:kvp S 0..1 Extension Roehrenspannung (kVp) in kV
..... extension 0..0 Extension
..... url 1..1 uri "kvp"
..... value[x] 0..1 Quantity Value of extension
...... system 0..1 uri System that defines coded unit form
Required Pattern: http://unitsofmeasure.org
...... code 0..1 code Coded form of the unit
Required Pattern: kV
.... extension:tubeCurrent S 0..1 Extension Roehrenstrom in mA
..... extension 0..0 Extension
..... url 1..1 uri "tubeCurrent"
..... value[x] 0..1 Quantity Value of extension
...... system 0..1 uri System that defines coded unit form
Required Pattern: http://unitsofmeasure.org
...... code 0..1 code Coded form of the unit
Required Pattern: mA
.... extension:exposureTime S 0..1 Extension Belichtungszeit in Sekunden
..... extension 0..0 Extension
..... url 1..1 uri "exposureTime"
..... value[x] 0..1 Quantity Value of extension
...... system 0..1 uri System that defines coded unit form
Required Pattern: http://unitsofmeasure.org
...... code 0..1 code Coded form of the unit
Required Pattern: s
... url 1..1 uri "https://fhir.cognovis.de/praxis/StructureDefinition/radiation-dose"
... value[x] 0..0 Value of extension

doco Documentation for this format

Snapshot View

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Extension 0..* Extension Radiation Dose
... id 0..1 string Unique id for inter-element referencing
... Slices for extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
.... extension:dap S 0..1 Extension Dosis-Flaechenprodukt (DAP) in microGy*m2
..... id 0..1 string Unique id for inter-element referencing
..... extension 0..0 Extension
Slice: Unordered, Open by value:url
..... url 1..1 uri "dap"
..... value[x] 0..1 Quantity Value of extension
...... id 0..1 string Unique id for inter-element referencing
...... extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
...... value Σ 0..1 decimal Numerical value (with implicit precision)
...... comparator ?!Σ 0..1 code < | <= | >= | > - how to understand the value
Binding: QuantityComparator (required): How the Quantity should be understood and represented.
...... unit Σ 0..1 string Unit representation
...... system ΣC 0..1 uri System that defines coded unit form
Required Pattern: http://unitsofmeasure.org
...... code Σ 0..1 code Coded form of the unit
Required Pattern: uGy.m2
.... extension:effectiveDose S 0..1 Extension Effektive Dosis in microSv
..... id 0..1 string Unique id for inter-element referencing
..... extension 0..0 Extension
Slice: Unordered, Open by value:url
..... url 1..1 uri "effectiveDose"
..... value[x] 0..1 Quantity Value of extension
...... id 0..1 string Unique id for inter-element referencing
...... extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
...... value Σ 0..1 decimal Numerical value (with implicit precision)
...... comparator ?!Σ 0..1 code < | <= | >= | > - how to understand the value
Binding: QuantityComparator (required): How the Quantity should be understood and represented.
...... unit Σ 0..1 string Unit representation
...... system ΣC 0..1 uri System that defines coded unit form
Required Pattern: http://unitsofmeasure.org
...... code Σ 0..1 code Coded form of the unit
Required Pattern: uSv
.... extension:kvp S 0..1 Extension Roehrenspannung (kVp) in kV
..... id 0..1 string Unique id for inter-element referencing
..... extension 0..0 Extension
Slice: Unordered, Open by value:url
..... url 1..1 uri "kvp"
..... value[x] 0..1 Quantity Value of extension
...... id 0..1 string Unique id for inter-element referencing
...... extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
...... value Σ 0..1 decimal Numerical value (with implicit precision)
...... comparator ?!Σ 0..1 code < | <= | >= | > - how to understand the value
Binding: QuantityComparator (required): How the Quantity should be understood and represented.
...... unit Σ 0..1 string Unit representation
...... system ΣC 0..1 uri System that defines coded unit form
Required Pattern: http://unitsofmeasure.org
...... code Σ 0..1 code Coded form of the unit
Required Pattern: kV
.... extension:tubeCurrent S 0..1 Extension Roehrenstrom in mA
..... id 0..1 string Unique id for inter-element referencing
..... extension 0..0 Extension
Slice: Unordered, Open by value:url
..... url 1..1 uri "tubeCurrent"
..... value[x] 0..1 Quantity Value of extension
...... id 0..1 string Unique id for inter-element referencing
...... extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
...... value Σ 0..1 decimal Numerical value (with implicit precision)
...... comparator ?!Σ 0..1 code < | <= | >= | > - how to understand the value
Binding: QuantityComparator (required): How the Quantity should be understood and represented.
...... unit Σ 0..1 string Unit representation
...... system ΣC 0..1 uri System that defines coded unit form
Required Pattern: http://unitsofmeasure.org
...... code Σ 0..1 code Coded form of the unit
Required Pattern: mA
.... extension:exposureTime S 0..1 Extension Belichtungszeit in Sekunden
..... id 0..1 string Unique id for inter-element referencing
..... extension 0..0 Extension
Slice: Unordered, Open by value:url
..... url 1..1 uri "exposureTime"
..... value[x] 0..1 Quantity Value of extension
...... id 0..1 string Unique id for inter-element referencing
...... extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
...... value Σ 0..1 decimal Numerical value (with implicit precision)
...... comparator ?!Σ 0..1 code < | <= | >= | > - how to understand the value
Binding: QuantityComparator (required): How the Quantity should be understood and represented.
...... unit Σ 0..1 string Unit representation
...... system ΣC 0..1 uri System that defines coded unit form
Required Pattern: http://unitsofmeasure.org
...... code Σ 0..1 code Coded form of the unit
Required Pattern: s
... url 1..1 uri "https://fhir.cognovis.de/praxis/StructureDefinition/radiation-dose"

doco Documentation for this format

This structure is derived from Extension

Summary

Complex Extension: Radiation dose parameters for X-ray procedures. Captures Dose Area Product (DAP in microGy*m2), effective dose (microSv), tube voltage (kVp in kV), tube current (mA), and exposure time (s). Combined with the Procedure resource (patient, date, body region, examination type), satisfies the documentation requirements of 85 StrlSchG (examination recordkeeping duty) and 85 StrlSchG (examination recordkeeping duty) and

  • dap: Quantity: Dosis-Flaechenprodukt (Dose Area Product, DAP) in Mikrogray mal Quadratmeter (microGy*m2). DICOM Tag 0018,115E.
  • effectiveDose: Quantity: Effektive Dosis in Mikrosievert (microSv). Abgeleitete Groesse aus Dosislaengprodukt und Koerperstelle.
  • kvp: Quantity: Spitzenroehrenspannung (Peak kV) der Roentgenroehre in Kilovolt. DICOM Tag 0018,0060.
  • tubeCurrent: Quantity: Roehrenstrom der Roentgenroehre in Milliampere (mA). DICOM Tag 0018,1151.
  • exposureTime: Quantity: Belichtungszeit der Roentgenaufnahme in Sekunden. DICOM Tag 0018,1150.

 

Other representations of profile: CSV, Excel, Schematron

Terminology Bindings

Path Status Usage ValueSet Version Source
Extension.extension:dap.​value[x].comparator Base required QuantityComparator 📍4.0.1 FHIR Std.
Extension.extension:effectiveDose.​value[x].comparator Base required QuantityComparator 📍4.0.1 FHIR Std.
Extension.extension:kvp.​value[x].comparator Base required QuantityComparator 📍4.0.1 FHIR Std.
Extension.extension:tubeCurrent.​value[x].comparator Base required QuantityComparator 📍4.0.1 FHIR Std.
Extension.extension:exposureTime.​value[x].comparator Base required QuantityComparator 📍4.0.1 FHIR Std.

Constraints

Id Grade Path(s) Description Expression
ele-1 error **ALL** elements All FHIR elements must have a @value or children hasValue() or (children().count() > id.count())
ext-1 error **ALL** extensions Must have either extensions or value[x], not both extension.exists() != value.exists()