MII Implementation Guide Core Dataset Base
2026.0.1 - Release Germany

MII Implementation Guide Core Dataset Base - Downloaded Version 2026.0.1 See the Directory of published versions

## Logical Model: MII LM Prozedur - Detailed Descriptions

Active as of 2026-06-15

Definitions for the mii-lm-prozedur logical model

- Key Elements Table
- Differential Table
- Snapshot Table

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

0. Prozedur
Definition | Logische Repräsentation des Basismoduls Prozedur Base definition for all elements in a resource.
Short | Das Basismodul Prozeduren umfasst die Beschreibung diagnostischer oder therapeutischer Maßnahmen, die als Leistungskomplexe auch für die Abrechnung dokumentiert und kodiert werden, z.B. Operationen.Base for all elements
Control | 0..* This element is affected by the following invariants: ele-1
Is Modifier | false
Logical Model | Instances of this logical model are not marked to be the target of a Reference
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
2. Prozedur.id
Definition | Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short | Unique id for inter-element referencing
Control | 0..1
Type | string
Is Modifier | false
XML Format | In the XML format, this property is represented as an attribute.
Summary | false
4. Prozedur.extension
Definition | 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.
Short | Additional content defined by implementations
Comments | 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.
Control | 0..*
Type | Extension
Is Modifier | false
Summary | false
Alternate Names | extensions, user content
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
Slicing | This element introduces a set of slices on `Prozedur.extension`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ url
6. Prozedur.OPSProzedurKodiert
Definition | Kodierung der durchgeführten Prozedur mittels OPS.
Short | Kodierung der durchgeführten Prozedur mittels OPS.
Control | 0..1
Type | BackboneElement
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
8. Prozedur.OPSProzedurKodiert.id
Definition | Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short | Unique id for inter-element referencing
Control | 0..1
Type | string
Is Modifier | false
XML Format | In the XML format, this property is represented as an attribute.
Summary | false
10. Prozedur.OPSProzedurKodiert.extension
Definition | 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.
Short | Additional content defined by implementations
Comments | 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.
Control | 0..*
Type | Extension
Is Modifier | false
Summary | false
Alternate Names | extensions, user content
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
Slicing | This element introduces a set of slices on `Prozedur.OPSProzedurKodiert.extension`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ url
12. Prozedur.OPSProzedurKodiert.modifierExtension
Definition | 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).
Short | Extensions that cannot be ignored even if unrecognized
Comments | 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.
Control | 0..*
Type | Extension
Is Modifier | true because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summary | true
Requirements | 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.
Alternate Names | extensions, user content, modifiers
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
14. Prozedur.OPSProzedurKodiert.VollstaendigerProzedurencode
Definition | Der vollständige Prozedurencode: Tripel aus OPS-Code, Codesystem (inkl. Version!) und Katalogtext.
Short | Vollständiger Prozedurencode
Control | 0..1
Type | Coding
16. Prozedur.OPSProzedurKodiert.Seitenlokalisation
Definition | Seitenlokalisation für die durchgeführte Prozedur gemäß BfArM
Short | Seitenlokalisation
Control | 0..1
Type | Coding
18. Prozedur.SNOMEDProzedurKodiert
Definition | Kodierung der durchgeführten Prozedur mittels SNOMED CT.
Short | Kodierung der durchgeführten Prozedur mittels SNOMED CT.
Control | 0..1
Type | BackboneElement
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
20. Prozedur.SNOMEDProzedurKodiert.id
Definition | Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short | Unique id for inter-element referencing
Control | 0..1
Type | string
Is Modifier | false
XML Format | In the XML format, this property is represented as an attribute.
Summary | false
22. Prozedur.SNOMEDProzedurKodiert.extension
Definition | 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.
Short | Additional content defined by implementations
Comments | 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.
Control | 0..*
Type | Extension
Is Modifier | false
Summary | false
Alternate Names | extensions, user content
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
Slicing | This element introduces a set of slices on `Prozedur.SNOMEDProzedurKodiert.extension`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ url
24. Prozedur.SNOMEDProzedurKodiert.modifierExtension
Definition | 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).
Short | Extensions that cannot be ignored even if unrecognized
Comments | 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.
Control | 0..*
Type | Extension
Is Modifier | true because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summary | true
Requirements | 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.
Alternate Names | extensions, user content, modifiers
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
26. Prozedur.SNOMEDProzedurKodiert.VollstaendigerProzedurencode
Definition | Der vollständige Prozedurencode: Tripel aus SNOMED-CT-Code, Codesystem (Version optional) und präferierten Namen
Short | Vollständiger Prozedurencode
Control | 0..1
Type | Coding
28. Prozedur.Koerperstelle
Definition | Körperstelle der Prozedur mittels SNOMED CT inkl. Lateralität (R, L, B)
Short | Körperstelle
Control | 0..*
Type | CodeableConcept
30. Prozedur.Durchfuehrungsabsicht
Definition | Intention mit der die Prozedur durchgeführt wird.
Short | Durchführungsabsicht
Control | 0..1
Type | Coding
32. Prozedur.Durchfuehrungsdatum
Definition | Das Datum ist der Zeitpunkt, an dem eine Prozedur durchgeführt wurde.
Short | Durchführungsdatum
Control | 1..1
Type | dateTime
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
34. Prozedur.Dokumentationsdatum
Definition | Das Datum ist der Zeitpunkt, an dem eine Prozedur dokumentiert wurde.
Short | Dokumentationsdatum
Control | 0..1
Type | dateTime
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
36. Prozedur.Freitextbeschreibung
Definition | Freitextbeschreibung der durchgeführten Prozedur
Short | Freitextbeschreibung
Control | 0..1
Type | string
Primitive Value | This 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. Prozedur
Definition | Logische Repräsentation des Basismoduls Prozedur
Short | Das Basismodul Prozeduren umfasst die Beschreibung diagnostischer oder therapeutischer Maßnahmen, die als Leistungskomplexe auch für die Abrechnung dokumentiert und kodiert werden, z.B. Operationen.
Logical Model | Instances of this logical model are not marked to be the target of a Reference
2. Prozedur.OPSProzedurKodiert
Definition | Kodierung der durchgeführten Prozedur mittels OPS.
Short | Kodierung der durchgeführten Prozedur mittels OPS.
Control | 0..1
Type | BackboneElement
4. Prozedur.OPSProzedurKodiert.VollstaendigerProzedurencode
Definition | Der vollständige Prozedurencode: Tripel aus OPS-Code, Codesystem (inkl. Version!) und Katalogtext.
Short | Vollständiger Prozedurencode
Control | 0..1
Type | Coding
6. Prozedur.OPSProzedurKodiert.Seitenlokalisation
Definition | Seitenlokalisation für die durchgeführte Prozedur gemäß BfArM
Short | Seitenlokalisation
Control | 0..1
Type | Coding
8. Prozedur.SNOMEDProzedurKodiert
Definition | Kodierung der durchgeführten Prozedur mittels SNOMED CT.
Short | Kodierung der durchgeführten Prozedur mittels SNOMED CT.
Control | 0..1
Type | BackboneElement
10. Prozedur.SNOMEDProzedurKodiert.VollstaendigerProzedurencode
Definition | Der vollständige Prozedurencode: Tripel aus SNOMED-CT-Code, Codesystem (Version optional) und präferierten Namen
Short | Vollständiger Prozedurencode
Control | 0..1
Type | Coding
12. Prozedur.Koerperstelle
Definition | Körperstelle der Prozedur mittels SNOMED CT inkl. Lateralität (R, L, B)
Short | Körperstelle
Control | 0..*
Type | CodeableConcept
14. Prozedur.Durchfuehrungsabsicht
Definition | Intention mit der die Prozedur durchgeführt wird.
Short | Durchführungsabsicht
Control | 0..1
Type | Coding
16. Prozedur.Durchfuehrungsdatum
Definition | Das Datum ist der Zeitpunkt, an dem eine Prozedur durchgeführt wurde.
Short | Durchführungsdatum
Control | 1..1
Type | dateTime
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
18. Prozedur.Dokumentationsdatum
Definition | Das Datum ist der Zeitpunkt, an dem eine Prozedur dokumentiert wurde.
Short | Dokumentationsdatum
Control | 0..1
Type | dateTime
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
20. Prozedur.Freitextbeschreibung
Definition | Freitextbeschreibung der durchgeführten Prozedur
Short | Freitextbeschreibung
Control | 0..1
Type | string
Primitive Value | This 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. Prozedur
Definition | Logische Repräsentation des Basismoduls Prozedur
Short | Das Basismodul Prozeduren umfasst die Beschreibung diagnostischer oder therapeutischer Maßnahmen, die als Leistungskomplexe auch für die Abrechnung dokumentiert und kodiert werden, z.B. Operationen.
Control | 0..* This element is affected by the following invariants: ele-1
Is Modifier | false
Logical Model | Instances of this logical model are not marked to be the target of a Reference
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
2. Prozedur.id
Definition | Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short | Unique id for inter-element referencing
Control | 0..1
Type | string
Is Modifier | false
XML Format | In the XML format, this property is represented as an attribute.
Summary | false
4. Prozedur.extension
Definition | 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.
Short | Additional content defined by implementations
Comments | 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.
Control | 0..*
Type | Extension
Is Modifier | false
Summary | false
Alternate Names | extensions, user content
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
Slicing | This element introduces a set of slices on `Prozedur.extension`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ url
6. Prozedur.OPSProzedurKodiert
Definition | Kodierung der durchgeführten Prozedur mittels OPS.
Short | Kodierung der durchgeführten Prozedur mittels OPS.
Control | 0..1
Type | BackboneElement
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
8. Prozedur.OPSProzedurKodiert.id
Definition | Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short | Unique id for inter-element referencing
Control | 0..1
Type | string
Is Modifier | false
XML Format | In the XML format, this property is represented as an attribute.
Summary | false
10. Prozedur.OPSProzedurKodiert.extension
Definition | 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.
Short | Additional content defined by implementations
Comments | 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.
Control | 0..*
Type | Extension
Is Modifier | false
Summary | false
Alternate Names | extensions, user content
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
Slicing | This element introduces a set of slices on `Prozedur.OPSProzedurKodiert.extension`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ url
12. Prozedur.OPSProzedurKodiert.modifierExtension
Definition | 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).
Short | Extensions that cannot be ignored even if unrecognized
Comments | 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.
Control | 0..*
Type | Extension
Is Modifier | true because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summary | true
Requirements | 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.
Alternate Names | extensions, user content, modifiers
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
14. Prozedur.OPSProzedurKodiert.VollstaendigerProzedurencode
Definition | Der vollständige Prozedurencode: Tripel aus OPS-Code, Codesystem (inkl. Version!) und Katalogtext.
Short | Vollständiger Prozedurencode
Control | 0..1
Type | Coding
16. Prozedur.OPSProzedurKodiert.Seitenlokalisation
Definition | Seitenlokalisation für die durchgeführte Prozedur gemäß BfArM
Short | Seitenlokalisation
Control | 0..1
Type | Coding
18. Prozedur.SNOMEDProzedurKodiert
Definition | Kodierung der durchgeführten Prozedur mittels SNOMED CT.
Short | Kodierung der durchgeführten Prozedur mittels SNOMED CT.
Control | 0..1
Type | BackboneElement
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
20. Prozedur.SNOMEDProzedurKodiert.id
Definition | Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short | Unique id for inter-element referencing
Control | 0..1
Type | string
Is Modifier | false
XML Format | In the XML format, this property is represented as an attribute.
Summary | false
22. Prozedur.SNOMEDProzedurKodiert.extension
Definition | 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.
Short | Additional content defined by implementations
Comments | 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.
Control | 0..*
Type | Extension
Is Modifier | false
Summary | false
Alternate Names | extensions, user content
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
Slicing | This element introduces a set of slices on `Prozedur.SNOMEDProzedurKodiert.extension`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ url
24. Prozedur.SNOMEDProzedurKodiert.modifierExtension
Definition | 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).
Short | Extensions that cannot be ignored even if unrecognized
Comments | 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.
Control | 0..*
Type | Extension
Is Modifier | true because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summary | true
Requirements | 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.
Alternate Names | extensions, user content, modifiers
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
26. Prozedur.SNOMEDProzedurKodiert.VollstaendigerProzedurencode
Definition | Der vollständige Prozedurencode: Tripel aus SNOMED-CT-Code, Codesystem (Version optional) und präferierten Namen
Short | Vollständiger Prozedurencode
Control | 0..1
Type | Coding
28. Prozedur.Koerperstelle
Definition | Körperstelle der Prozedur mittels SNOMED CT inkl. Lateralität (R, L, B)
Short | Körperstelle
Control | 0..*
Type | CodeableConcept
30. Prozedur.Durchfuehrungsabsicht
Definition | Intention mit der die Prozedur durchgeführt wird.
Short | Durchführungsabsicht
Control | 0..1
Type | Coding
32. Prozedur.Durchfuehrungsdatum
Definition | Das Datum ist der Zeitpunkt, an dem eine Prozedur durchgeführt wurde.
Short | Durchführungsdatum
Control | 1..1
Type | dateTime
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
34. Prozedur.Dokumentationsdatum
Definition | Das Datum ist der Zeitpunkt, an dem eine Prozedur dokumentiert wurde.
Short | Dokumentationsdatum
Control | 0..1
Type | dateTime
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
36. Prozedur.Freitextbeschreibung
Definition | Freitextbeschreibung der durchgeführten Prozedur
Short | Freitextbeschreibung
Control | 0..1
Type | string
Primitive Value | This primitive element may be present, or absent, or replaced by an extension