CDS BULK REPLACEMENT GROUP CODE is not required when the Commissioning Data Set Net Change Update Mechanism is used.

The Commissioning Data Set Bulk Replacement Update Mechanism process identifies previously transferred CDS Types that are to be replaced by the submitted Commissioning Data Set interchange. To do this the CDS BULK REPLACEMENT GROUP CODE must be used together with the following data items:

• CDS REPORT PERIOD START DATE
• CDS REPORT PERIOD END DATE
• CDS INTERCHANGE SENDER IDENTITY
• CDS PRIME RECIPIENT IDENTITY

For submissions of CDS V6-2, CDS V6-2-1 Type 011 - Emergency Care Commissioning Data Set and CDS V6-2-2 Type 011 - Emergency Care Commissioning Data Set, the CDS PRIME RECIPIENT IDENTITY is Mandatory for submission in the CDS Type 005B - CDS Transaction Header Group - Bulk Update Protocol and CDS Type 005N - CDS Transaction Header Group - Net Change Protocol.  However, it no longer forms part of the key for the process of determining duplicate records within the Secondary Uses Service. 

Note that the CDS PRIME RECIPIENT IDENTITY continues to be used to determine data access requirements within the Secondary Uses Service.

It is particularly important when using the Commissioning Data Set Bulk Replacement Update Mechanism for a CDS BULK REPLACEMENT GROUP CODE to contain all the relevant CDS Types for the extracted time period in a single Commissioning Data Set Interchange, e.g. the Finished General Episodes, Finished Delivery Episodes and Finished Birth Episodes in a Finished Episode Group.

For specific National Code usage in different data sets, see CDS BULK REPLACEMENT GROUP CODE.

CDS COPY RECIPIENT IDENTITY is the NHS ORGANISATION CODE (or valid Organisation Data Service Default Code) for an ORGANISATION indicated as a CDS COPY RECIPIENT IDENTITY of the Commissioning data.

Usage:
A Recipient may be an agency or SERVICE provider that carries out the receiving (and perhaps other) processes on behalf of the NHS ORGANISATION that ultimately uses the data. There may be multiple recipients for Commissioning data.

Organisation Data Service Default Codes for CDS COPY RECIPIENT IDENTITIES are detailed in the Commissioning Data Set Addressing Grid.

Where NHS England is the responsible commissioner for a specialised SERVICE, based on the NHS England Commissioner Assignment Method (CAM), one of the Specialised Commissioning Hub ORGANISATION CODES should be used depending on which Health Care Provider delivered the SERVICE, e.g. NHS Trust, Independent Sector Healthcare Provider.

The NHS Digital website provides a mapping list of which Health Care Providers map to which Specialised Commissioning Hub. The mapping can be found on the Organisation Data Service web pages at: Provider to Commissioning Hub Mapping.

CDS PRIME RECIPIENT IDENTITY is the mandatory NHS ORGANISATION CODE (or valid Organisation Data Service Default Code) representing the ORGANISATION determined to be the Commissioning Data Set Prime Recipient of the Commissioning Data Set Message as indicated in the Commissioning Data Set Addressing Grid.

Usage:
The CDS PRIME RECIPIENT IDENTITY must be allocated on the first creation and submission of a CDS Type for a PATIENT and must not change even if the ADDRESS or ORGANISATION CODE (RESIDENCE RESPONSIBILITY) of the PATIENT changes during the lifetime of the Commissioning Data Set record otherwise duplicate Commissioning Data Set data may be lodged in the Secondary Uses Service database.

CDS PRIME RECIPIENT IDENTITY is a mandatory data item crucial for the correct indexing of the database and must not be changed during the life of the associated Commissioning Data Set. It does not identify the first or most important recipient of data, i.e. there is no inference of primacy of one recipient over another.

Organisation Data Service Default Codes for CDS PRIME RECIPIENT IDENTITIES are detailed in the Commissioning Data Set Addressing Grid. 

Please note that the following Organisation Data Service Default Codes must not be used in the Commissioning Data Set (CDS) header because they are not default Commissioner codes:

• Q99 - High Level Health Geography/Primary Care Organisation of Residence Not Known
  • for the CDS PRIME RECIPIENT IDENTITY, a valid ORGANISATION CODE (RESIDENCE RESPONSIBILITY) must be reported
• X98 - Primary Care Organisation Not Applicable (Overseas Visitors)
  • for the CDS PRIME RECIPIENT IDENTITY, the Commissioning Data Set Addressing Grid confirms the correct code that should be reported for Overseas Visitors who are exempt from charges.

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 Commissioning Data Set 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. 

CDS SENDER IDENTITY will be replaced with ORGANISATION IDENTIFIER (CDS SENDER), when it has been approved for use in national information standards.

Note that the CDS UNIQUE IDENTIFIER must be constructed without the use of PATIENT Confidential Information. This includes PATIENT Identifiers such as NHS NUMBER or LOCAL PATIENT IDENTIFIER, as well as any text which may identify the PATIENT DIAGNOSIS of the PATIENT or any PATIENT procedures being undertaken.

See the Commissioning Data Set Submission Protocol for detailed information.

Once assigned, a Commissioning Data Set record must retain its CDS UNIQUE IDENTIFIER otherwise duplicate Commissioning Data Set records may be generated and stored in the Secondary Uses Service database.

The CDS UNIQUE IDENTIFIER has three components. The recommended constructs are given below.

For All CDS Types EXCEPT the EAL CDS Types:

For EAL End Of Period (EOP) CDS Types only:

For EAL Event During Period (EDP) CDS Types only:

Usage:
CDS UNIQUE IDENTIFIER is a mandatory data item when the Net Change Update Mechanism is used and strongly recommended for use with the Bulk Replacement Update Mechanism.

However it is strongly advised that users of the Bulk Replacement Mechanism maintain a correctly generated CDS UNIQUE IDENTIFIER within the Commissioning data. This will establish a migration path towards the use of the Net Change Mechanism and will also then minimise the risk of creating duplicate Commissioning Data Set data in the Secondary Uses Service database.

• Note that senders of Commissioning Data Set data remain directly responsible for the integrity of the CDS UNIQUE IDENTIFIER
• It is a mandatory requirement for all submissions using the Net Change Update Mechanism that these two components are constructed correctly to ensure uniqueness of CDS UNIQUE IDENTIFIERS across the NHS. 
• The structure of 3b and 3c allows the EAL End of Period Census and the EAL Event During Period Census for the same EAL Entry to be linked.

There are circumstances in patient care application systems where the control of the UID key integrity may be suspect. These issues include:

a) Episode deletion (not resulting in a Commissioning Data Set deletion of previously submitted data sent to the original Commissioner);
b) Episode re-sequencing (not resulting in a corresponding Commissioning Data Set records being sent);
c) Service agreement alterations not resulting in correct adjustments - Old Service Agreement deletion / New Service Agreement addition
d) Re-admissions causing duplicate keys on the Secondary Uses Service database.

Each use of an NHS ORGANISATION CODE within a Commissioning Data Set message must be associated with the release version of the NHS Organisation Code scheme. At present this may be derived locally by NHS IT systems.

The following values have been informally used in many Commissioning Data Set implementations and are recommended to be used:

* The values of A and B must be used in the formatting of the CDS UNIQUE IDENTIFIER.

This item is being used for development purposes and has not yet been approved.

This data element is also known by these names:

Context	Alias
plural	ORGANISATION IDENTIFIERS (CDS RECIPIENT)

Attribute:

This item is being used for development purposes and has not yet been approved.

This data element is also known by these names:

Context	Alias
plural	ORGANISATION IDENTIFIERS (CDS SENDER)

Attribute: