The following constants are used to indicate the Class Information Object Definitions.
Code constant  | 
Code value and meaning  | 
CLASS_12_LEAD_ECG  | 
12-Lead ECG  | 
CLASS_AMBULATORY_ECG  | 
Ambulatory ECG  | 
CLASS_BASIC_ANNOTATION  | 
Basic Annotation  | 
CLASS_BASIC_CARDIAC_EP  | 
Basic Cardiac EP  | 
CLASS_BASIC_COLOR_IMAGE_BOX  | 
Basic Color Image Box  | 
CLASS_BASIC_COLOR_PRINT_META  | 
Basic Print Meta  | 
CLASS_BASIC_DIRECTORY  | 
Basic Directory  | 
CLASS_BASIC_FILM_BOX  | 
Basic Film Box  | 
CLASS_BASIC_FILM_SESSION  | 
Basic Film Session  | 
CLASS_BASIC_GRAYSCALE_IMAGE_BOX  | 
Basic Grayscale Image Box  | 
CLASS_BASIC_GRAYSCALE_PRINT_META  | 
Basic Print Meta  | 
CLASS_BASIC_IMAGE_BOX  | 
Basic Image Box  | 
CLASS_BASIC_PRINT_IMAGE_OVERLAY_BOX  | 
Basic print image overlay box.  | 
CLASS_BASIC_STUDY_DESCRIPTOR  | 
Basic Study Descriptor  | 
CLASS_BASIC_TEXT_SR  | 
Basic Text Structured Reporting  | 
CLASS_BASIC_VOICE_AUDIO  | 
Basic Voice Audio  | 
CLASS_CHEST_CAD_SR  | 
Chest CAD SR  | 
CLASS_COMPREHENSIVE_SR  | 
Comprehensive Structured Reporting  | 
CLASS_CR_IMAGE_STORAGE  | 
Computed Radiography Image  | 
CLASS_CT_IMAGE_STORAGE  | 
Computed Tomography Image  | 
CLASS_DX_IMAGE_STORAGE_PRESENTATION  | 
Digital X-ray image presentation.  | 
CLASS_DX_IMAGE_STORAGE_PROCESSING  | 
Digital X-ray image processing.  | 
CLASS_DX_INTRAORAL_IMAGE_STORAGE_PRESENTATION  | 
Digital X-ray Intraoral image presentation.  | 
CLASS_DX_INTRAORAL_IMAGE_STORAGE_PROCESSING  | 
Digital X-ray Intraoral image processing.  | 
CLASS_DX_MAMMOGRAPHY_IMAGE_STORAGE_PRESENTATION  | 
Digital X-ray Mammography image presentation.  | 
CLASS_DX_MAMMOGRAPHY_IMAGE_STORAGE_PROCESSING  | 
Digital X-ray Mammography image processing.  | 
CLASS_ENHANCED_MR_IMAGE_STORAGE  | 
Enhanced MR Image Storage  | 
CLASS_ENHANCED_SR  | 
Enhanced Structured Reporting  | 
CLASS_GENERAL_ECG  | 
General ECG  | 
CLASS_GENERAL_PURPOSE_PERFORMED_PROCEDURE_STEP  | 
General Purpose Performed Procedure Step  | 
CLASS_GENERAL_PURPOSE_SCHEDULED_PROCEDURE_STEP  | 
General Purpose Scheduled Procedure Step  | 
CLASS_GENERAL_PURPOSE_WORKLIST  | 
General Purpose Worklist  | 
CLASS_GENERAL_PURPOSE_WORKLIST_MANAGEMENT_META  | 
General Purpose Worklist Management Meta  | 
CLASS_GRAYSCALE_SOFTCOPY_PRESENTATION_STATE  | 
Grayscale Softcopy Presentation State  | 
CLASS_HC_COLOR_IMAGE_STORAGE  | 
Hardcopy Color Image  | 
CLASS_HC_GRAYSCALE_IMAGE_STORAGE  | 
Hardcopy Grayscale Image  | 
CLASS_HEMODYNAMIC  | 
Hemodynamic  | 
CLASS_IMAGE_OVERLAY_BOX_RETIRED  | 
Image Overlay Box (Retired)  | 
CLASS_INTERPRETATION  | 
Interpretation  | 
CLASS_KEY_OBJECT_SELECTION_DOCUMENT  | 
Key Object Selection Document  | 
CLASS_MAMMOGRAPHY_CAD_SR  | 
Mammography CAD SR  | 
CLASS_MAX  | 
Maximum number of classes.  | 
CLASS_MODALITY_PERFORMED_PROCEDURE_STEP  | 
Modality Performed Procedure Step  | 
CLASS_MODALITY_WORKLIST  | 
Modality Worklist  | 
CLASS_MR_IMAGE_STORAGE  | 
Magnetic Resonance Image  | 
CLASS_MR_SPECTROSCOPY_STORAGE  | 
MR Spectroscopy Storage  | 
CLASS_NM_IMAGE_STORAGE  | 
Nuclear Medicine Image  | 
CLASS_NM_IMAGE_STORAGE_RETIRED  | 
Nuclear Medicine Image (Retired)  | 
CLASS_OPHTHALMIC_8_BIT_PHOTOGRAPHY_IMAGE_STORAGE  | 
Ophthalmic Photography 8 Bit Image Storage  | 
CLASS_OPHTHALMIC_16_BIT_PHOTOGRAPHY_IMAGE_STORAGE  | 
Ophthalmic Photography 16 Bit Image Storage  | 
CLASS_PATIENT  | 
Patient  | 
CLASS_PATIENT_META  | 
Patient Meta  | 
CLASS_PATIENT_ROOT_QUERY_IMAGE  | 
Patient root query image.  | 
CLASS_PATIENT_ROOT_QUERY_PATIENT  | 
Patient root query patient.  | 
CLASS_PATIENT_ROOT_QUERY_SERIES  | 
Patient root query series.  | 
CLASS_PATIENT_ROOT_QUERY_STUDY  | 
Patient root query study.  | 
CLASS_PATIENT_STUDY_QUERY_PATIENT  | 
Patient study query patient.  | 
CLASS_PATIENT_STUDY_QUERY_STUDY  | 
Patient study query study.  | 
CLASS_PET_IMAGE_STORAGE  | 
Positron Emission Tomography Image  | 
CLASS_PRESENTATION_LUT  | 
Presentation LUT  | 
CLASS_PRINT_JOB  | 
Print Job  | 
CLASS_PRINT_QUEUE  | 
Print Queue  | 
CLASS_PRINTER  | 
Printer  | 
CLASS_PRINTER_CONFIGURATION  | 
Printer configuration.  | 
CLASS_PULL_PRINT_REQUEST  | 
Pull Print Request  | 
CLASS_PULL_STORED_PRINT_META  | 
Pull Stored Print Meta  | 
CLASS_RAW_DATA_STORAGE  | 
Raw Data Storage  | 
CLASS_REFERENCED_COLOR_PRINT_META_RETIRED  | 
Referenced Print Meta (Retired)  | 
CLASS_REFERENCED_GRAYSCALE_PRINT_META_RETIRED  | 
Referenced Print Meta (Retired)  | 
CLASS_RESULTS  | 
Results  | 
CLASS_RESULTS_META  | 
Results Meta  | 
CLASS_RT_BEAMS_TREATMENT_RECORD_STORAGE  | 
Radiotherapy Beams Treatment Record.  | 
CLASS_RT_BRACHY_TREATMENT_RECORD_STORAGE  | 
Radiotherapy Brachy Treatment Record.  | 
CLASS_RT_DOSE_STORAGE  | 
Radiotherapy Dose  | 
CLASS_RT_IMAGE_STORAGE  | 
Radiotherapy Image  | 
CLASS_RT_PLAN_STORAGE  | 
Radiotherapy Plan  | 
CLASS_RT_STRUCTURE_SET_STORAGE  | 
Radiotherapy Structure Set  | 
CLASS_RT_TREATMENT_SUMMARY_RECORD_STORAGE  | 
Radiotherapy Treatment Summary Record.  | 
CLASS_SC_IMAGE_STORAGE  | 
Secondary Capture Image  | 
CLASS_SC_MULTI_FRAME_GRAYSCALE_BYTE_IMAGE_STORAGE  | 
Secondary Capture Multi-frame Grayscale Byte Image Storage  | 
CLASS_SC_MULTI_FRAME_GRAYSCALE_WORD_IMAGE_STORAGE  | 
Secondary Capture Multi-frame Grayscale Word Image Storage  | 
CLASS_SC_MULTI_FRAME_SINGLE_BIT_IMAGE_STORAGE  | 
Secondary Capture Multi-frame Single Bit Image Storage  | 
CLASS_SC_MULTI_FRAME_TRUE_COLOR_IMAGE_STORAGE  | 
Secondary Capture Multi-Frame True Color Image Storage  | 
CLASS_STANDALONE_CURVE_STORAGE  | 
Standalone Curve  | 
CLASS_STANDALONE_MODALITY_LUT_STORAGE  | 
Standalone Modality LUT  | 
CLASS_STANDALONE_OVERLAY_STORAGE  | 
Standalone Overlay  | 
CLASS_STANDALONE_PET_CURVE_STORAGE  | 
Standalone Positron Emission Tomography Curve  | 
CLASS_STANDALONE_VOI_LUT_STORAGE  | 
Standalone VOI LUT  | 
CLASS_STEREOMETRIC_RELATIONSHIP_STORAGE  | 
Stereometric Relationship Storage  | 
CLASS_STORAGE_COMMITMENT_PULL_MODEL  | 
Storage Commitment  | 
CLASS_STORAGE_COMMITMENT_PUSH_MODEL  | 
Storage Commitment  | 
CLASS_STORED_PRINT_STORAGE  | 
Stored Print  | 
CLASS_STUDY  | 
Study  | 
CLASS_STUDY_COMPONENT  | 
Study Component  | 
CLASS_STUDY_META  | 
Study Meta  | 
CLASS_STUDY_ROOT_QUERY_IMAGE  | 
Study root query image.  | 
CLASS_STUDY_ROOT_QUERY_SERIES  | 
Study root query series.  | 
CLASS_STUDY_ROOT_QUERY_STUDY  | 
Study root query study.  | 
CLASS_UNKNOWN  | 
Unknown  | 
CLASS_US_IMAGE_STORAGE  | 
Ultrasound Image  | 
CLASS_US_IMAGE_STORAGE_RETIRED  | 
Ultrasound Image (Retired)  | 
CLASS_US_MULTI_FRAME_IMAGE_STORAGE  | 
Ultrasound Multi-frame Image  | 
CLASS_US_MULTI_FRAME_IMAGE_STORAGE_RETIRED  | 
Ultrasound Multi-frame Image (Retired)  | 
CLASS_VISIT  | 
Visit  | 
CLASS_VL_ENDOSCOPIC_IMAGE_STORAGE  | 
Visible Light Endoscopic image.  | 
CLASS_VL_MICROSCOPIC_IMAGE_STORAGE  | 
Visible Light Microscopic image.  | 
CLASS_VL_PHOTOGRAPHIC_IMAGE_STORAGE  | 
Visible Light Photographic image.  | 
CLASS_VL_SLIDE_COORDINATES_MICROSCOPIC_IMAGE_STORAGE  | 
Visible Light slide coordinates for a Microscopic image.  | 
CLASS_VOI_LUT_BOX_RETIRED  | 
VOI LUT Box (Retired)  | 
CLASS_XA_BIPLANE_IMAGE_STORAGE_RETIRED  | 
X-Ray Angiographic Bi-Plane Image (Retired)  | 
CLASS_XA_IMAGE_STORAGE  | 
X-Ray Angiographic Image  | 
CLASS_XRF_IMAGE_STORAGE  | 
X-Ray Radiofluoroscopic Image  |