Format/Length:	an3 or an5
National Codes:
Default Codes:

Notes:
CDS SENDER IDENTITY is the mandatory NHS ORGANISATION CODE of the Organisation acting as the physical Sender of Commissioning Data Set submissions.

Usage:
The Commissioning Data Set sender must make sure that the Commissioning Data Set extraction and submission facilities and processes differentiate correctly between:

• The ORGANISATION CODE (CDS SENDER IDENTITY) as carried in the CDS Transaction Header Group for every Commissioning Data Set,
• and
• The ORGANISATION CODE (CODE OF PROVIDER) as carried in the Service Agreement details which are part of the Episode/Attendance details.

Once associated with the a Commissioning Data Set record and submitted to the Secondary Uses Service, the CDS SENDER IDENTITY should not be changed unless great care is taken to delete the original Commissioning Data Set records before any resubmission is undertaken.

Usually, the CDS SENDER IDENTITY is never altered once assigned. 

This data element is also known by these names:

Context	Alias
schema	ORGANISATION CODE (CDS SENDER IDENTITY)
plural	CDS SENDER IDENTITIES