What it holds
A globally unique identifier for a single object: one image, one report, one presentation state.
In migrations and validation
The finest level of validation. Instance-level comparison is expensive, so it is usually reserved for studies that already failed the study-level count check.
Related tags
- SOP Class UID (0008,0016): SOPClassUID, UI
- Series Instance UID (0020,000E): SeriesInstanceUID, UI
More instance and references tags
- Instance Number (0020,0013)
- Referenced SOP Class UID (0008,1150)
- Referenced SOP Instance UID (0008,1155)
- Image Type (0008,0008)
Tag, keyword, VR and VM per the DICOM standard, PS3.6 data dictionary. Notes by DICOMATICS. Looking for another tag? Use the DICOM tag lookup.