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
PatientMModule - Patient
Clinical Trial SubjectUModule - Patient
General StudyMModule - Study
Patient StudyUModule - Study
Clinical Trial StudyUModule - Study
General SeriesMModule - Series
CT SeriesMModule - Series
Clinical Trial SeriesUModule - Series
Frame of ReferenceMModule - Frame of Reference
SynchronizationUModule - Frame of Reference
General EquipmentMModule - Equipment
Enhanced General EquipmentUModule - Equipment
Image PixelMModule - Image
Contrast/BolusUModule - Image
Enhanced Contrast/BolusUModule - Image
Multi-frame Functional GroupsMModule - Image
Multi-frame DimensionUModule - Image
Cardiac SynchronizationUModule - Image
Respiratory SynchronizationUModule - Image
Acquisition ContextMModule - Image
DeviceUModule - Image
SpecimenUModule - Image
Enhanced CT ImageMModule - Image
SOP CommonMModule - Image
(0008,0005) Specific Character Set1CCode String
(0008,0012) Instance Creation Date3Date
(0008,0013) Instance Creation Time3Time
(0008,0014) Instance Creator UID3Unique Identifier
(0008,0015) Instance Coercion DateTime3Date Time
(0008,0016) SOP Class UID1Unique Identifier
(0008,0018) SOP Instance UID1Unique Identifier
(0008,001A) Related General SOP Class UID3Unique Identifier
(0008,001B) Original Specialized SOP Class UID3Unique Identifier
(0008,001C) Synthetic Data3Code String
(0008,0053) Query/Retrieve View1CCode String
(0008,0110) Coding Scheme Identification Sequence3Sequence
(0008,0123) Context Group Identification Sequence3Sequence
(0008,0124) Mapping Resource Identification Sequence3Sequence
(0008,0201) Timezone Offset From UTC3Short String
(0008,0300) Private Data Element Characteristics Sequence3Sequence
(0018,9004) Content Qualification3Code String
(0018,990C) Referenced Defined Protocol Sequence1CSequence
(0018,990D) Referenced Performed Protocol Sequence1CSequence
(0018,A001) Contributing Equipment Sequence3Sequence
(0020,0013) Instance Number3Integer String
(0020,9172) Conversion Source Attributes Sequence1CSequence
(0028,0303) Longitudinal Temporal Information Modified3Code String
(0040,A390) HL7 Structured Document Reference Sequence1CSequence
(0100,0410) SOP Instance Status3Code String
(0100,0420) SOP Authorization DateTime3Date Time
(0100,0424) SOP Authorization Comment3Long Text
(0100,0426) Authorization Equipment Certification Number3Long String
(0400,0500) Encrypted Attributes Sequence1CSequence
(0400,0561) Original Attributes Sequence3Sequence
(0400,0600) Instance Origin Status3Code String
(2200,0005) Barcode Value3Long Text
(4FFE,0001) MAC Parameters Sequence3Sequence
(FFFA,FFFA) Digital Signatures Sequence3Sequence
Common Instance ReferenceUModule - Image
Frame ExtractionCModule - Image
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
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.

Barcode Value Attribute

TypeOptional (3)
Value Multiplicity1
Value RepresentationLong Text (LT)

Barcode interpreted from a scanned label.


  1. In the case of a scanned patient label, this may be the same as Patient ID (0010,0020), but it is included in an Instance level Module rather than a Patient level Module since barcodes may also be used to identify lower level entities. This might be obtained by scanning the patient's wrist band, request form, or extracting a burned-in label from the image pixel data, for example.

  2. In the case of a scanned slide label, this may be the same as Container Identifier (0040,0512) in the Specimen Module.

Specimen Module

C.7.6.22 Specimen Module

Table C.7.6.22-1 specifies the Attributes of the Specimen Module, which identify one or more Specimens being imaged.

Table C.7.6.22-1. Specimen Module Attributes

Attribute Name



Attribute Description

Include Table C.7.6.22-2 “Specimen Macro Attributes”

Table C.7.6.22-2. Specimen Macro Attributes

Attribute Name



Attribute Description

Container Identifier



The identifier for the container that contains the specimen(s) being imaged. See Section C.

Issuer of the Container Identifier Sequence



Organization that assigned the Container Identifier.

Zero or one Item shall be included in this Sequence.

>Include Table 10-17 “HL7v2 Hierarchic Designator Macro Attributes”

Alternate Container Identifier Sequence



Sequence of alternate identifiers for the container that contains the specimen(s) being imaged. These may have been assigned, e.g., by the manufacturer, or by another institution that collected the specimen. One or more Items are permitted in this Sequence.

>Container Identifier



The identifier for the container that contains the specimen(s) being imaged.

>Issuer of the Container Identifier Sequence



Organization that assigned the Container Identifier.

Zero or one Item shall be included in this Sequence.

>>Include Table 10-17 “HL7v2 Hierarchic Designator Macro Attributes”

Container Type Code Sequence



Type of container that contains the specimen(s) being imaged.

Zero or one Item shall be included in this Sequence.

>Include Table 8.8-1 “Code Sequence Macro Attributes”

BCID 8101 “Container Type”.

Container Description



Description of the container.

Container Component Sequence



Description of one or more components of the container (e.g., description of the slide and of the coverslip).

One or more Items are permitted in this Sequence.

>Container Component Type Code Sequence



Type of container component.

Only a single Item shall be included in this Sequence.

>>Include Table 8.8-1 “Code Sequence Macro Attributes”

BCID 8102 “Container Component Type”.




Manufacturer of the container component.

>Manufacturer's Model Name



Manufacturer's model name of the container component.

>Container Component ID



Manufacturer's identifier of the container component, e.g., Lot Number and/or Version.

>Container Component Length



Length in mm of container component.

>Container Component Width



Width in mm of container component.

>Container Component Diameter



Diameter in mm of container component for cylindrical or circular components.

>Container Component Thickness



Thickness in mm of container component.

>Container Component Material



Material of container component.

Defined Terms:




>Container Component Description



Container component text description.

Specimen Description Sequence



Sequence of identifiers and detailed description of the specimen(s) being imaged.

One or more Items shall be included in this Sequence.

Each specimen imaged in the Pixel Data shall be identified by an Item in this Sequence. Other specimens in/on the container, but not imaged in the Pixel Data, may also be identified by Items in this Sequence.

>Specimen Identifier



A departmental information system identifier for the Specimen. See Section C. and Section C.

If a single specimen is present in a container, the value of the Specimen Identifier and the value of the Container Identifier are typically the same.

>Issuer of the Specimen Identifier Sequence



The name or code for the institution that has assigned the Specimen Identifier.

Zero or one Item shall be included in this Sequence.

>>Include Table 10-17 “HL7v2 Hierarchic Designator Macro Attributes”

>Specimen UID



Unique Identifier for Specimen. See Section C.

>Specimen Type Code Sequence



Specimen Type.

Only a single Item is permitted in this Sequence.

>>Include Table 8.8-1 “Code Sequence Macro Attributes”

BCID 8103 “Anatomic Pathology Specimen Type”.

>Specimen Short Description



Short textual specimen description (may include ancestor specimen descriptions).

>Specimen Detailed Description



Detailed textual specimen description (may include ancestor specimen descriptions).

>Specimen Preparation Sequence



Sequence of Items identifying the process steps used to prepare the specimen for image acquisition. This includes description of all processing necessary to interpret the image.

Zero or more Items shall be included in this Sequence.

This Sequence includes description of the specimen sampling step from an ancestor specimen, potentially back to the original part collection.

See Section C.

>>Specimen Preparation Step Content Item Sequence



Sequence of Content Items identifying the processes used in one preparation step to prepare the specimen for image acquisition.

One or more Items shall be included in this Sequence.

>>>Include Table 10-2 “Content Item Macro Attributes”

BTID 8001 “Specimen Preparation”

>Include Table 10-8 “Primary Anatomic Structure Macro Attributes”

Original anatomic location in patient of specimen. This location may be identical to that of the parent specimen, may be further refined by modifiers depending on the sampling procedure for this specimen, or may be a distinct concept.

BCID 8134 “Anatomic Structure”

>Specimen Localization Content Item Sequence



Sequence of Content Items identifying the location of the specimen in the container and/or in the image. See Section C.

One or more Items shall be included in this Sequence.

Required if multiple specimens present in the image. May be present otherwise.

>>Include Table 10-2 “Content Item Macro Attributes”

DTID 8004 “Specimen Localization”.

C. Specimen Module Attribute Descriptions
C. Container Identifier and Specimen Identifier

"Specimen" is the role played by a discrete physical object (or a collection of objects that are considered as a unit) that is the subject of pathology examination.

A specimen is a physical object (or a collection of objects) when the laboratory considers it a single discrete, uniquely identified unit that is the subject of one or more steps in the laboratory (diagnostic) workflow. This includes objects at all levels of processing, including fresh tissue, dissected organs, tissue embedded in paraffin, sections made from embedded tissue, and liquid preparations.

Specimens are physically managed by being placed in or on a container. The concept of container includes buckets, cassettes, vials, and slides. While there is usually one specimen per container, it is possible, in some laboratory workflows, for multiple specimens to be in/on a container.

Both specimens and specimen containers have logical identifiers for workflow management. The logical identifier of a container is usually conveyed on a label on the container. The specimen itself will typically not be physically labeled with its identifier. For the usual case of a single specimen in/on a container, the logical identifiers may be identical. However, when there are multiple specimens in/on a container, each specimen receives a distinct logical identifier. These identifiers are encoded in the SOP Instance using Attributes Container Identifier (0040,0512) and Specimen Identifier (0040,0551).


  1. This definition of "specimen" extends the common definition beyond the part or parts that were submitted for examination (e.g., from surgery) to include any derivative piece that may be separately analyzed or examined, such as a block or slide preparation.

  2. Although many Pathology Information Systems use a hierarchical system for identifying parts, blocks and slides, there should be no assumption made that this will be the case and in particular, there should be no attempt to parse a given Specimen Identifier to retrieve an accession number or other higher level identifier.

C. Specimen Identifier and Specimen UID

Specimen Identifier (0040,0551) must be unique at least within the Study; the actual scope of uniqueness is determined by the departmental information system that assigns the IDs. Each specimen shall also be assigned a globally unique Specimen UID (0040,0554) that allows referencing beyond the scope of a Study. This UID may be used, for instance, if a specimen is delivered to another institution for further analysis.

C. Specimen Preparation Sequence and Specimen Preparation Step Content Item Sequence

Interpretation of specimen images requires information about the source of the specimen and its preparation (e.g., sampling, fixation, staining). The processing steps used to prepare a specimen are recorded in the Specimen Preparation Sequence (0040,0610). This Sequence may include one Item for each processing step (as defined in the laboratory workflow) in the history of the specimen, and those Items are composed of a set of Content Items in the Specimen Preparation Step Content Item Sequence (0040,0612).

The Specimen Preparation Sequence may include description of the original part collected from the patient, the processing of that part, the sampling of tissue from the part and the preparation of that sample, and the further sub-sampling and processing of the tissue. In other words, the description of a specific specimen may include descriptions of the specimen's ancestors.

The Specimen Preparation Sequence Items shall be in ascending chronological order.

C. Specimen Localization Content Item Sequence

When there are multiple specimens in/on a container, the Specimen Localization Content Item Sequence (0040,0620) is used to identify the location of the specimen in the container, as there is no physical label with the Specimen Identifier. This Content Item Sequence, in accordance with TID 8004 “Specimen Localization”, allows the specimen to be localized by a distance in one to three dimensions from a reference point on the container, by an identified physical description such as a colored ink, or by its location as shown in a referenced image of the container. The referenced image may use an overlay, burned-in annotation, or an associated Presentation State SOP Instance to specify the location of the specimen.