DICOM tag · Instance and references

Referenced SOP Instance UID (0008,1155)

By Aviram Biton, Founder and Technical Lead, DICOMATICS · Published November 14, 2026

Tag(0008,1155)

KeywordReferencedSOPInstanceUID

VRUI

VM1

What it holds

The SOP Instance UID of an object being referenced.

In migrations and validation

Must be remapped together with the objects it points to whenever UIDs are replaced, in migration or in de-identification.

Related tags

Referenced SOP Class UID (0008,1150): ReferencedSOPClassUID, UI
SOP Instance UID (0008,0018): SOPInstanceUID, UI

More instance and references tags

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.

About the author

Aviram Biton

Founder and Technical Lead, DICOMATICS

Aviram Biton founded DICOMATICS and leads its engineering work. He has spent two decades with medical imaging data: PACS and VNA migrations, multi-site consolidations, interfaces and data quality for US hospitals and health systems.

Keep reading

How to validate a PACS migration

Instance-level comparison and rejected objects.

All DICOM tags

The full list of attributes in this reference.

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