Study Instance UID (0020,000D)

What it holds

A globally unique identifier for the study. Every image in the study carries the same value.

In migrations and validation

The primary key for study-level comparison between source and target. Be careful: some targets merge studies or regenerate UIDs, and some legacy archives contain the same UID on studies that were moved between sites. A good validation matches on UID first and falls back to accession, patient and date when UIDs don't line up.

Related tags

• Series Instance UID (0020,000E): SeriesInstanceUID, UI
• SOP Instance UID (0008,0018): SOPInstanceUID, UI
• Accession Number (0008,0050): AccessionNumber, SH

More study tags

• Issuer of Accession Number Sequence (0008,0051)
• Study Date (0008,0020)
• Study Time (0008,0030)
• Study Description (0008,1030)

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.