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Prefixes in Genetic Material and Cryostored Devices

Learn what the prefixes in your cryostored material and devices means

Written by Gabby Adams

CXE: embryo from a cycle, where X stands for the patient's relevant cycle number
​CSE: cryostored embryos
​CSS: cryostored semen

CSO: cryostored oocytes
​CD: cryostorage device

OD: oocyte donation

ED: embryology embryo

EE: oocyte/embryo export

EA: embryology aspiration

AAE: admin-added embryo

Examples

EE-12345-0001 - First embryo for patient 12345
​EA-12345-0003 - Third aspiration for patient 12345
​C4E-12345-0001 - First embryo from cycle 4 for patient 12345
​AAE-P12345-0001 - First admin-added embryo for patient 12345
​CSE-12345-0005 - Fifth cryopreserved embryo sample for patient 12345

When thawing embryos and oocytes it is possible to generate a new ID for the sample — this is set up so that the new cycle ID will be included in the updated ID. This is configured on the clinic level, by visiting your clinic settings > cycles > settings > where you will find two checkboxes using which you can indicate whether the sample ID should change as a result of a thaw event.

Note: the former ID will always be available for reference on the original cycle culture page, and on the cryostore record, if the sample IDs are configured to change.

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