US Multi-frame ImageCIOD
Secondary Capture ImageCIOD
Multi-frame Single Bit SC ImageCIOD
Multi-frame Grayscale Byte SC ImageCIOD
Multi-frame Grayscale Word SC ImageCIOD
Multi-frame True Color SC ImageCIOD
X-Ray Angiographic ImageCIOD
X-Ray Radiofluoroscopic ImageCIOD
RT Structure SetCIOD
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
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
Basic Voice Audio WaveformCIOD
Ambulatory ECGCIOD
Hemodynamic WaveformCIOD
Basic Cardiac Electrophysiology WaveformCIOD
Arterial Pulse WaveformCIOD
Respiratory WaveformCIOD
General Audio WaveformCIOD
Real-Time Audio WaveformCIOD
Basic Text SRCIOD
PatientMModule - Patient
Clinical Trial SubjectUModule - Patient
General StudyMModule - Study
Patient StudyUModule - Study
Clinical Trial StudyUModule - Study
SR Document SeriesMModule - Series
Clinical Trial SeriesUModule - Series
General EquipmentMModule - Equipment
SR Document GeneralMModule - Document
(0008,0023) Content Date1Date
(0008,0033) Content Time1Time
(0008,114A) Referenced Instance Sequence1CSequence
(0020,0013) Instance Number1Integer String
(0040,A073) Verifying Observer Sequence1CSequence
(0040,A078) Author Observer Sequence3Sequence
(0040,A07A) Participant Sequence3Sequence
(0008,0055) Station AE Title3Application Entity
(0008,0070) Manufacturer1CLong String
(0008,0080) Institution Name2Long String
(0008,0082) Institution Code Sequence2Sequence
(0008,1010) Station Name2CShort String
(0008,1040) Institutional Department Name3Long String
(0008,1041) Institutional Department Type Code Sequence3Sequence
(0008,1090) Manufacturer's Model Name1CLong String
(0018,1000) Device Serial Number3Long String
(0018,1002) Device UID1CUnique Identifier
(0018,1020) Software Versions3Long String
(0040,1101) Person Identification Code Sequence2CSequence
(0040,A080) Participation Type1Code String
(0040,A082) Participation DateTime2Date Time
(0040,A084) Observer Type1Code String
(0040,A123) Person Name1CPerson Name
(0044,010A) Organizational Role Code Sequence3Sequence
(0040,A07C) Custodial Organization Sequence3Sequence
(0040,A360) Predecessor Documents Sequence1CSequence
(0040,A370) Referenced Request Sequence1CSequence
(0040,A372) Performed Procedure Code Sequence2Sequence
(0040,A375) Current Requested Procedure Evidence Sequence1CSequence
(0040,A385) Pertinent Other Evidence Sequence1CSequence
(0040,A491) Completion Flag1Code String
(0040,A492) Completion Flag Description3Long String
(0040,A493) Verification Flag1Code String
(0040,A496) Preliminary Flag3Code String
(0040,A525) Identical Documents Sequence1CSequence
SR Document ContentMModule - Document
SOP CommonMModule - Document
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 Structured ReportCIOD
Planned Imaging Agent Administration SRCIOD
Performed Imaging Agent Administration SRCIOD
Rendition Selection DocumentCIOD
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
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
Basic DirectoryCIOD

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

Data synced with official DICOM standard on 12 May 2020. 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.

Participation Type Attribute

TypeRequired (1)
Value Multiplicity1
Value RepresentationCode String (CS)

Participant's role with respect to the clinical content of this document. See Section C.17.2.5.

Defined Terms:


Equipment that contributed to the content


Data enterer (e.g., transcriptionist)




In HL7 Structured Documents, the participation comparable to Attestor is the "Authenticator".

Section C.17.2.5

C.17.2.5 Verifying Observer, Author Observer and Participant Sequences

The Verifying Observer Sequence (0040,A073), Author Observer Sequence (0040,A078), and Participant Sequence (0040,A07A) identify significant contributors to the SR document. The Author creates the clinical content of the document. The Verifying Observer verifies and accepts legal responsibility for the content. Other participants may include an Attestor, a person identified as a Participant who "signs" an SR document, but who does not have legal authority to verify the clinical content. E.g., an SR document may be authored and attested by a resident, and then verified by a staff physician; or a document may be authored by a CAD device and attested by a technologist, and then verified by a physician; or a technologist working with a measurement software package may be the author, the package is a Source participant, and the final content is verified by a physician.

An individual shall not be identified in both the Verifying Observer Sequence (as the legal authenticator) and in the Participant Sequence as an Attestor. An individual may be identified in both the Author Observer Sequence and either the Verifying Observer Sequence or the Participant Sequence.

The participation DateTime for the Verifying Observer is conveyed in Verification DateTime (0040,A030) within the Verifying Observer Sequence, for the Author Observer in Observation DateTime (0040,A032) in the top level Data Set (see Section C.17.3), and for other participants in Participation DateTime (0040,A082) within the Participant Sequence.