Computed Radiography ImageCIOD
Nuclear Medicine ImageCIOD
Ultrasound ImageCIOD
Ultrasound Multi-frame ImageCIOD
Secondary Capture ImageCIOD
Multi-frame Single Bit Secondary Capture ImageCIOD
Multi-frame Grayscale Byte Secondary Capture ImageCIOD
Multi-frame Grayscale Word Secondary Capture ImageCIOD
Multi-frame True Color Secondary Capture ImageCIOD
X-Ray Angiographic ImageCIOD
X-Ray Radiofluoroscopic ImageCIOD
RT Structure SetCIOD
Positron Emission Tomography ImageCIOD
Digital X-Ray ImageCIOD
Digital Mammography X-Ray ImageCIOD
Digital Intra-Oral X-Ray ImageCIOD
RT Beams Treatment RecordCIOD
RT Brachy Treatment RecordCIOD
RT Treatment Summary RecordCIOD
VL Endoscopic ImageCIOD
VL Microscopic ImageCIOD
VL Slide-Coordinates Microscopic ImageCIOD
VL Photographic ImageCIOD
Video Endoscopic ImageCIOD
Video Microscopic ImageCIOD
Video Photographic ImageCIOD
VL Whole Slide Microscopy ImageCIOD
Real-Time Video Endoscopic ImageCIOD
Real-Time Video Photographic ImageCIOD
Dermoscopic Photography ImageCIOD
Grayscale Softcopy Presentation StateCIOD
Color Softcopy Presentation StateCIOD
Pseudo-Color Softcopy Presentation StateCIOD
Blending Softcopy Presentation StateCIOD
Basic Structured DisplayCIOD
XA/XRF Grayscale Softcopy Presentation StateCIOD
Advanced Blending Presentation StateCIOD
Variable Modality LUT Softcopy Presentation StateCIOD
Basic Voice Audio WaveformCIOD
Ambulatory ECGCIOD
Hemodynamic WaveformCIOD
Basic Cardiac Electrophysiology WaveformCIOD
Arterial Pulse WaveformCIOD
Respiratory WaveformCIOD
General Audio WaveformCIOD
Real-Time Audio WaveformCIOD
Routine Scalp ElectroencephalogramCIOD
Sleep ElectroencephalogramCIOD
Multi-channel Respiratory WaveformCIOD
Body Position WaveformCIOD
General 32-bit ECGCIOD
Basic Text SRCIOD
Enhanced SRCIOD
Comprehensive SRCIOD
Key Object Selection DocumentCIOD
Mammography CAD SRCIOD
Procedure LogCIOD
X-Ray Radiation Dose SRCIOD
Spectacle Prescription ReportCIOD
Macular Grid Thickness and Volume ReportCIOD
Implantation Plan SR DocumentCIOD
Comprehensive 3D SRCIOD
Radiopharmaceutical Radiation Dose SRCIOD
Extensible SRCIOD
Acquisition Context SRCIOD
Simplified Adult Echo SRCIOD
Patient Radiation Dose SRCIOD
Planned Imaging Agent Administration SRCIOD
Performed Imaging Agent Administration SRCIOD
Rendition Selection DocumentCIOD
Enhanced X-Ray Radiation Dose SRCIOD
Enhanced MR ImageCIOD
MR SpectroscopyCIOD
Enhanced MR Color ImageCIOD
Raw DataCIOD
Enhanced CT ImageCIOD
Spatial RegistrationCIOD
Deformable Spatial RegistrationCIOD
Spatial FiducialsCIOD
Ophthalmic Photography 8 Bit ImageCIOD
Ophthalmic Photography 16 Bit ImageCIOD
Stereometric RelationshipCIOD
Hanging ProtocolCIOD
Encapsulated PDFCIOD
Encapsulated CDACIOD
Real World Value MappingCIOD
Enhanced XA ImageCIOD
Enhanced XRF ImageCIOD
RT Ion Beams Treatment RecordCIOD
Ophthalmic Tomography ImageCIOD
X-Ray 3D Angiographic ImageCIOD
X-Ray 3D Craniofacial ImageCIOD
Breast Tomosynthesis ImageCIOD
Enhanced PET ImageCIOD
Surface SegmentationCIOD
Color PaletteCIOD
Enhanced US VolumeCIOD
Lensometry MeasurementsCIOD
Autorefraction MeasurementsCIOD
Keratometry MeasurementsCIOD
Subjective Refraction MeasurementsCIOD
Visual Acuity MeasurementsCIOD
Ophthalmic Axial MeasurementsCIOD
Intraocular Lens CalculationsCIOD
Generic Implant TemplateCIOD
Implant Assembly TemplateCIOD
Implant Template GroupCIOD
RT Beams Delivery InstructionCIOD
Ophthalmic Visual Field Static Perimetry MeasurementsCIOD
Intravascular Optical Coherence Tomography ImageCIOD
Ophthalmic Thickness MapCIOD
Surface Scan MeshCIOD
Surface Scan Point CloudCIOD
Legacy Converted Enhanced CT ImageCIOD
Legacy Converted Enhanced MR ImageCIOD
Legacy Converted Enhanced PET ImageCIOD
Corneal Topography MapCIOD
Breast Projection X-Ray ImageCIOD
Parametric MapCIOD
Wide Field Ophthalmic Photography Stereographic Projection ImageCIOD
Wide Field Ophthalmic Photography 3D Coordinates ImageCIOD
Tractography ResultsCIOD
RT Brachy Application Setup Delivery InstructionCIOD
Planar MPR Volumetric Presentation StateCIOD
Volume Rendering Volumetric Presentation StateCIOD
Content Assessment ResultsCIOD
CT Performed Procedure ProtocolCIOD
CT Defined Procedure ProtocolCIOD
Protocol ApprovalCIOD
XA Performed Procedure ProtocolCIOD
XA Defined Procedure ProtocolCIOD
Ophthalmic Optical Coherence Tomography En Face ImageCIOD
Ophthalmic Optical Coherence Tomography B-scan Volume AnalysisCIOD
Encapsulated STLCIOD
Encapsulated OBJCIOD
Encapsulated MTLCIOD
RT Physician IntentCIOD
RT Segment AnnotationCIOD
RT Radiation SetCIOD
C-Arm Photon-Electron RadiationCIOD
Tomotherapeutic RadiationCIOD
Robotic-Arm RadiationCIOD
RT Radiation Record SetCIOD
RT Radiation Salvage RecordCIOD
C-Arm Photon-Electron Radiation RecordCIOD
Tomotherapeutic Radiation RecordCIOD
Robotic-Arm Radiation RecordCIOD
RT Radiation Set Delivery InstructionCIOD
RT Treatment PreparationCIOD
Enhanced RT ImageCIOD
Enhanced Continuous RT ImageCIOD
RT Patient Position Acquisition InstructionCIOD
PatientMModule - Patient
Clinical Trial SubjectUModule - Patient
General StudyMModule - Study
Patient StudyUModule - Study
Clinical Trial StudyUModule - Study
General SeriesMModule - Series
Clinical Trial SeriesUModule - Series
Enhanced RT SeriesMModule - Series
General EquipmentMModule - Equipment
Enhanced General EquipmentMModule - Equipment
General ReferenceMModule - Plan
RT Patient Position Acquisition DeviceMModule - Plan
RT Patient Position Acquisition InstructionMModule - Plan
(3002,0118) Acquisition Task Sequence1Sequence
(3002,0108) RT Acquisition Patient Position Sequence2Sequence
(3002,0119) Acquisition Task Workitem Code Sequence1Sequence
(3002,011A) Acquisition Subtask Sequence1Sequence
(3002,011B) Subtask Workitem Code Sequence1Sequence
(3002,011D) Acquisition Subtask Index1Unsigned Short
(3002,011E) Referenced Baseline Parameters RT Radiation Instance Sequence1CSequence
(3002,011F) Position Acquisition Template Identification Sequence3Sequence
(3002,0125) Projection Imaging Acquisition Parameter Sequence1CSequence
(3002,0126) CT Imaging Acquisition Parameter Sequence1CSequence
(0018,9913) Parameters Specification Sequence3Sequence
(0040,08EA) Measurement Units Code Sequence3Sequence
(0008,0100) Code Value1CShort String
(0008,0102) Coding Scheme Designator1CShort String
(0008,0103) Coding Scheme Version1CShort String
(0008,0104) Code Meaning1Long String
(0008,0105) Mapping Resource1CCode String
(0008,0106) Context Group Version1CDate Time
(0008,0107) Context Group Local Version1CDate Time
(0008,010B) Context Group Extension Flag3Code String
(0008,010D) Context Group Extension Creator UID1CUnique Identifier
(0008,010F) Context Identifier3Code String
(0008,0117) Context UID3Unique Identifier
(0008,0118) Mapping Resource UID3Unique Identifier
(0008,0119) Long Code Value1CUnlimited Characters
(0008,0120) URN Code Value1CURL
(0008,0121) Equivalent Code Sequence3Sequence
(0008,0122) Mapping Resource Name3Long String
(0072,0026) Selector Attribute1CAttribute Tag
(0072,0028) Selector Value Number1CUnsigned Short
(0072,0050) Selector Attribute VR1Code String
(0072,0052) Selector Sequence Pointer1CAttribute Tag
(0072,0054) Selector Sequence Pointer Private Creator1CLong String
(0072,0056) Selector Attribute Private Creator1CLong String
(0074,1057) Selector Sequence Pointer Items1CInteger String
(0082,0018) Selector Attribute Name1Long String
(0082,0019) Selector Attribute Keyword3Long String
(0082,0032) Constraint Type1Code String
(0082,0033) Specification Selection Guidance3Unlimited Text
(0082,0034) Constraint Value Sequence1CSequence
(0082,0035) Recommended Default Value Sequence3Sequence
(0082,0036) Constraint Violation Significance3Code String
(0082,0037) Constraint Violation Condition1CUnlimited Text
(3002,012B) Scan Start Position Sequence1Sequence
(3002,012C) Scan Stop Position Sequence1Sequence
(3002,012E) Scan Arc Type3Code String
(3002,012F) Detector Positioning Type3Code String
(3002,0127) KV Imaging Generation Parameters Sequence1CSequence
(3002,0128) MV Imaging Generation Parameters Sequence1CSequence
(3002,0129) Acquisition Signal Type1Code String
(3002,012A) Acquisition Method1Code String
(3002,0130) Additional RT Accessory Device Sequence1CSequence
(3002,0131) Device-Specific Acquisition Parameter Sequence3Sequence
(3002,0132) Referenced Position Reference Instance Sequence3Sequence
(3002,0135) Acquisition Initiation Sequence3Sequence
(300A,0607) Referenced Device Index1CUnsigned Short
(300A,0659) RT Device Distance Reference Location Code Sequence1CSequence
(300A,0688) RT Beam Modifier Definition Distance1CDouble
(3002,011C) Acquisition Task Index1Unsigned Short
(3002,0124) Acquisition Task Applicability Sequence1CSequence
(3010,0037) Entity Description3Short Text
(3010,0038) Entity Long Label1Long String
SOP CommonMModule - Plan
Common Instance ReferenceMModule - Plan
Radiotherapy Common InstanceMModule - Plan
Microscopy Bulk Simple AnnotationsCIOD
Photoacoustic ImageCIOD
Confocal Microscopy ImageCIOD
Confocal Microscopy Tiled Pyramidal ImageCIOD
Basic DirectoryCIOD

Built with by Innolitics, a team of medical imaging software developers.

Data synced with official DICOM standard on 18 April 2024. The DICOM Standard is under continuous maintenance, and the current official version is available at DICOM Parts 3, 4, and 6, © NEMA. Please note that the most recent PDF version of the standard is the official reference, and should checked when making technical decisions.

Context Group Extension Creator UID Attribute

TypeConditionally Required (1C)
Value Multiplicity1
Value RepresentationUnique Identifier (UI)

Identifies the person or organization who created an extension to the Context Group. See Section 8.7.

Required if the value of Context Group Extension Flag (0008,010B) is "Y".

Section 8.7

8.7 Context Group Extensions

Context Group Extension Flag (0008,010B) may be used to designate a pair of Code Value (0008,0100) (or Long Code Value (0008,0119) or URN Code Value (0008,0120)) and Code Meaning (0008,0104) as a selection from a private extension of a Context Group. If the Context Group Extension Flag (0008,010B) is present, and has a value of "Y", Context Group Extension Creator UID (0008,010D) shall be used to identify the person or organization who created the extension to the Context Group. Context Group Local Version (0008,0107) conveys an implementation-specific private version DateTime of a Context Group that contains private extensions.


  1. These Attributes provide the means for implementations to extend code sets conveniently, while preserving referential integrity with respect to the original Context Group Version (0008,0106).

  2. The locally-defined (private) value of Context Group Local Version (0008,0107) typically would be a more recent date than the standard value of Context Group Version (0008,0106) specified in the standard message/terminology Mapping Resource that defines the Context Group.