DICOM Standard Browser

Computed Radiography ImageCIOD
CT ImageCIOD
MR 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 ImageCIOD
RT DoseCIOD
RT Structure SetCIOD
RT PlanCIOD
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
12-Lead ECGCIOD
General ECGCIOD
Ambulatory ECGCIOD
Hemodynamic WaveformCIOD
PatientMModule - Patient
(0008,1120) Referenced Patient Sequence3Sequence
(0010,0010) Patient's Name2Person Name
(0010,0020) Patient ID2Long String
(0010,0021) Issuer of Patient ID3Long String
(0010,0022) Type of Patient ID3Code String
(0010,0024) Issuer of Patient ID Qualifiers Sequence3Sequence
(0010,0026) Source Patient Group Identification Sequence3Sequence
(0010,0027) Group of Patients Identification Sequence3Sequence
(0010,0030) Patient's Birth Date2Date
(0010,0032) Patient's Birth Time3Time
(0010,0033) Patient's Birth Date in Alternative Calendar3Long String
(0010,0034) Patient's Death Date in Alternative Calendar3Long String
(0010,0035) Patient's Alternative Calendar1CCode String
(0010,0040) Patient's Sex2Code String
(0010,0200) Quality Control Subject3Code String
(0010,0212) Strain Description3Unlimited Characters
(0010,0213) Strain Nomenclature3Long String
(0010,0216) Strain Stock Sequence3Sequence
(0010,0218) Strain Additional Information3Unlimited Text
(0010,0219) Strain Code Sequence3Sequence
(0010,0221) Genetic Modifications Sequence3Sequence
(0010,1001) Other Patient Names3Person Name
(0010,1002) Other Patient IDs Sequence3Sequence
(0010,1100) Referenced Patient Photo Sequence3Sequence
(0010,2160) Ethnic Group3Short String
(0010,2201) Patient Species Description1CLong String
(0010,2202) Patient Species Code Sequence1CSequence
(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
(0008,0100) 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
(0008,0122) Mapping Resource Name3Long String
(0008,0122) Mapping Resource Name3Long String
(0010,2292) Patient Breed Description2CLong String
(0010,2293) Patient Breed Code Sequence2CSequence
(0010,2294) Breed Registration Sequence2CSequence
(0010,2297) Responsible Person2CPerson Name
(0010,2298) Responsible Person Role1CCode String
(0010,2299) Responsible Organization2CLong String
(0010,4000) Patient Comments3Long Text
(0012,0062) Patient Identity Removed3Code String
(0012,0063) De-identification Method1CLong String
(0012,0064) De-identification Method Code Sequence1CSequence
Clinical Trial SubjectUModule - Patient
General StudyMModule - Study
Patient StudyUModule - Study
Clinical Trial StudyUModule - Study
General SeriesMModule - Series
Clinical Trial SeriesUModule - Series
SynchronizationCModule - Frame of Reference
General EquipmentMModule - Equipment
Waveform IdentificationMModule - Waveform
WaveformMModule - Waveform
Acquisition ContextMModule - Waveform
Waveform AnnotationCModule - Waveform
SOP CommonMModule - Waveform
Basic Cardiac Electrophysiology WaveformCIOD
Arterial Pulse WaveformCIOD
Respiratory WaveformCIOD
General Audio WaveformCIOD
Real-Time Audio WaveformCIOD
Routine Scalp ElectroencephalogramCIOD
ElectromyogramCIOD
ElectrooculogramCIOD
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
Chest CAD SRCIOD
Procedure LogCIOD
X-Ray Radiation Dose SRCIOD
Spectacle Prescription ReportCIOD
Colon CAD SRCIOD
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 PlanCIOD
RT Ion Beams Treatment RecordCIOD
SegmentationCIOD
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
Microscopy Bulk Simple AnnotationsCIOD
InventoryCIOD
Photoacoustic ImageCIOD
Confocal Microscopy ImageCIOD
Confocal Microscopy Tiled Pyramidal ImageCIOD
Basic DirectoryCIOD
© 2016 – 2024 Innolitics, LLC.

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 http://www.dicomstandard.org/current/. 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.

Equivalent Code Sequence Attribute

Tag(0008,0121)
TypeOptional (3)
KeywordEquivalentCodeSequence
Value Multiplicity1
Value RepresentationSequence (SQ)

Codes that are considered equivalent by the creating system.

One or more Items are permitted in this Sequence.

See Section 8.9.

Section 8.9

8.9 Equivalent Code Sequence

The Equivalent Code Sequence (0008,0121) Attribute may optionally be used to convey different codes for the same concept.

Equivalence is defined as having the same or similar meaning, and requires that equivalent concepts do not include different aspects, properties, features, characteristics, or parameters.

Note

E.g., the SNOMED and FMA codes for a structure of the breast, (76752008, SCT, "Breast") and (57983, FMA, "Breast") would be considered equivalent. Neither would be equivalent to concepts that pre-coordinated other aspects such as laterality, e.g., (80248007, SCT, "Left breast"), or entire body organ, e.g., (181131000, SCT, "Entire breast").

Some scenarios in which it is helpful for the creating system to send equivalent codes include:

  • when different representations of the same concept are present in a standard coding scheme, such as the SNOMED-CT and SNOMED-RT and CTV3 style identifiers,

  • when the same concept is present in different standard coding schemes, but considered by the creating system to be synonymous, such as anatomical concepts from SNOMED and FMA, and

  • when the same concept is present in a local as well as a standard coding scheme, but considered by the creating system to be synonymous, such as a local private procedure code and the same concept in LOINC or SNOMED or RADLEX.

The Table 8.8-1b may be used to identify a Context Group from which the codes were selected, such as for a particular cross-institutional, cross-application context for trials, research and knowledge-based applications.