The Event During Period CDS Types carry details for all events - patients added or removed from the Elective Admission List - that have taken place during the period.

These CDSs are intended for those Providers and Commissioners who have the capability to implement transaction-based processing. They should be supplemented where required by an annual EAL End Of Period Census.

Six EAL Event During Period derivations are permitted:
1) CDS Type 060 - The Event During Period (ADD)
2) CDS Type 070 - The Event During Period (REMOVE)
3) CDS Type 080 - The Event During Period (OFFER)
4) CDS Type 090 - The Event During Period (AVAILABLE / UNAVAILABLE)
5) CDS Type 100 - The Event During Period (OLD SERVICE AGREEMENT)
6) CDS Type 110 - The Event During Period (NEW SERVICE AGREEMENT)

This derivation, CDS Type = 100, is the Event During Period (OLD SERVICE AGREEMENT) and is used to report to the previous (OLD) Commissioner that the EAL entry is now the responsibility of another Commissioner.

Note that for EAL Event During Period CDS Types, the Unique CDS Identifier, as held in the CDS Transaction Header Group, must be completed in order to provide the EAL identity.

The column headed Opt (Optionality) shows whether the data element is Mandatory M or Optional O.