The CDS V6 Type 020 - Outpatient Commissioning Data Set carries the data for an Outpatient Attendance or a cancelled/missed APPOINTMENT.

It covers all NHS and private Outpatient ACTIVITY taking place in any:

• acute, community or mental health NHS Trust
• Primary Care Trust
• other NHS hospital
• non-NHS hospitals or institutions where the care delivered is NHS-funded.

under the care of a CONSULTANT, MIDWIFE or NURSE, where an appropriate MAIN SPECIALTY CODE and TREATMENT FUNCTION CODE exists.

ACTIVITY taking place under the care of Allied Health Professionals, other Biomedical Scientists and Clinical Scientists may also be carried (where an appropriate MAIN SPECIALTY CODE and TREATMENT FUNCTION CODE exists) if required although this is not a Commissioning Data Set Mandated Data Flow.

This CDS TYPE may also be used to submit Referral To Treatment Clock Stop Administrative Events.

This CDS TYPE must not be used for "Future Outpatients" - for this the CDS V6 Type 021 - Future Outpatient Commissioning Data Set must be used.

Note: CDS V6 Type 020 - Outpatient Commissioning Data Set is called Care Activity in the Commissioning Data Set XML Message Schema.

To access more detailed information on the Commissioning Data Sets, see the Commissioning Data Sets Introduction.

Data Group Overview

A high-level view of the Data Groups carried in the CDS V6 Type 021 - Future Outpatient Commissioning Data Set is shown below.A high-level view of the Data Groups carried in the CDS V6 Type 020 - Outpatient Commissioning Data Set is shown below.

See Commissioning Data Set Notation for an explanation of Group Status and Group Repeats.

CDS V6 Type 190 - Admitted Patient Care - Unfinished General Episode Commissioning Data Set carries the data for an Unfinished General Episode.

It covers all NHS and private Admitted Patient Care (day case and inpatient) ACTIVITY taking place in any:

• acute, community or mental health NHS Trust
• Primary Care Trust
• other NHS hospital
• non-NHS hospitals or institutions where the care delivered is NHS-funded.

under the care of a CONSULTANT, MIDWIFE or NURSE, where an appropriate MAIN SPECIALTY CODE and TREATMENT FUNCTION CODE exists.

ACTIVITY taking place under the care of Allied Health Professionals, other Biomedical Scientists and Clinical Scientists may also be carried (where an appropriate MAIN SPECIALTY CODE and TREATMENT FUNCTION CODE exists) if required although this is not a Commissioning Data Set Mandated Data Flow.

Where the Care Activity data relates to a Referral To Treatment Period Included In 18 Weeks Target, the CDS DATA GROUP : PATIENT PATHWAY data elements must be completed where appropriate.

An Unfinished General Episode Commissioning Data Set record is required for all Unfinished General Episodes as at midnight on 31 March each year and for all unfinished short-stay informal psychiatric PATIENTS who are resident in hospital or on leave of absence (Home Leave) on 31 March and who have been in hospital for less than 12 months.

CDS V6 Type 190 - Admitted Patient Care - Unfinished General Episode Commissioning Data Set may optionally be sent more regularly, usually monthly.

To access more detailed information on the Commissioning Data Sets, see the Commissioning Data Sets Introduction.

Data Group Overview

A high-level view of the Data Groups carried in the CDS V6 Type 140 - Admitted Patient Care - Finished Delivery Episode Commissioning Data Set is shown below.A high-level view of the Data Groups carried in the CDS V6 Type 190 - Admitted Patient Care - Unfinished General Episode Commissioning Data Set is shown below.

See Commissioning Data Set Notation for an explanation of Group Status and Group Repeats. 

This item is being used for development purposes and has not yet been assured by the Information Standards Board for Health and Social Care.

The data carried in the three National Service Framework for Children Young People and Maternity Services Data Sets (Maternity Data Set, National Children's and Young People's Health Services Data Set and Child and Adolescent Mental Health Services Data Set) must be structured in a particular way for submission nationally. Data items in the files, including the items in the header records, are pipe-delimited (| character).

Each data set submission file of data is structured in the following way:

• Data Set File Header Row
• Data Set Segment Row(s)
• Data Set File Trailer Row

See below for the file structure for each data set row:

• Data Set File Header Row

This contains information about the submission file, and is structured as follows, for all three data sets:

DATA SET ROW TYPE (CHILDREN YOUNG PEOPLE AND MATERNITY SERVICES) (note - always value HDR in a file header row)

YEAR AND MONTH OF REPORTING PERIOD

DATE AND TIME DATA SET CREATED

DATA SET IDENTIFIER (CHILDREN YOUNG PEOPLE AND MATERNITY SERVICES)

DATA SET VERSION NUMBER

ORGANISATION CODE (CODE OF PROVIDER)

DATA SET ROW TYPE (CHILDREN YOUNG PEOPLE AND MATERNITY SERVICES) (note - always value HDR in a file header row)
YEAR AND MONTH OF REPORTING PERIOD
DATE AND TIME DATA SET CREATED
DATA SET IDENTIFIER (CHILDREN YOUNG PEOPLE AND MATERNITY SERVICES)
DATA SET VERSION NUMBER
ORGANISATION CODE (CODE OF PROVIDER)

The Data Set File Header row is present only once, as the first record in the submission file.

• Data Set Segment Row

This contains Segment type and PATIENT identification information followed by segment content data items, and is structured as follows:

• For the Maternity Data Set:

For the Booking and Dating Scan, Infectious Diseases and Inherited Blood Disorders, Antenatal, Labour and Delivery, and Postnatal Data Segment Groups:

DATA SET ROW TYPE (CHILDREN YOUNG PEOPLE AND MATERNITY SERVICES) (note - always value SEG in a segment row)

DATA SET ROW TYPE (CHILDREN YOUNG PEOPLE AND MATERNITY SERVICES) (note - always value SEG in a segment row)

DATA SET SEGMENT IDENTIFIER (MATERNITY DATA SET)

NHS NUMBER (MOTHER)

ESTIMATED DATE OF DELIVERY (AGREED)

DATA SET SEGMENT IDENTIFIER (MATERNITY DATA SET)
NHS NUMBER (MOTHER)
ESTIMATED DATE OF DELIVERY (AGREED)

For the Baby Data Segment Groups
DATA SET ROW TYPE (CHILDREN YOUNG PEOPLE AND MATERNITY SERVICES) (note - always value SEG in a segment row)
DATA SET SEGMENT IDENTIFIER (MATERNITY DATA SET)
NHS NUMBER (MOTHER)
ESTIMATED DATE OF DELIVERY (AGREED)
NHS NUMBER (BABY)

DATA SET ROW TYPE (CHILDREN YOUNG PEOPLE AND MATERNITY SERVICES) (note - always value SEG in a segment row)

DATA SET SEGMENT IDENTIFIER (MATERNITY DATA SET)

NHS NUMBER (MOTHER)

ESTIMATED DATE OF DELIVERY (AGREED)

NHS NUMBER (BABY)

• For the Child and Adolescent Mental Health Services Data Set and the National Children's and Young People's Health Services Data Set:
• For the Child and Adolescent Mental Health Services Data Set and the National Children's and Young People's Health Services Data Set:

DATA SET ROW TYPE (CHILDREN YOUNG PEOPLE AND MATERNITY SERVICES) (note - always value SEG in a segment row)

DATA SET ROW TYPE (CHILDREN YOUNG PEOPLE AND MATERNITY SERVICES) (note - always value SEG in a segment row)

DATA SET SEGMENT IDENTIFIER (CHILD AND ADOLESCENT MENTAL HEALTH SERVICES DATA SET) or DATA SET SEGMENT IDENTIFIER (NATIONAL CHILDREN'S AND YOUNG PEOPLE'S HEALTH SERVICES DATA SET)

NHS NUMBER

DATA SET SEGMENT IDENTIFIER (CHILD AND ADOLESCENT MENTAL HEALTH SERVICES DATA SET) or DATA SET SEGMENT IDENTIFIER (NATIONAL CHILDREN'S AND YOUNG PEOPLE'S HEALTH SERVICES DATA SET) 
NHS NUMBER

This is followed in the same row by the segment content data items, which vary depending on which segment is being submitted. This structure is repeated for each data record within the file.

• Data Set File Trailer Row

This contains some of the same information as the Data Set File Header row, plus a count of all segment records within the file, as a data quality check, and is structured as follows:

DATA SET ROW TYPE (CHILDREN YOUNG PEOPLE AND MATERNITY SERVICES) (note - always value TRL in a file trailer row)

DATA SET ROW TYPE (CHILDREN YOUNG PEOPLE AND MATERNITY SERVICES) (note - always value TRL in a file trailer row)

YEAR AND MONTH OF REPORTING PERIOD

DATE AND TIME DATA SET CREATED

DATA SET IDENTIFIER (CHILDREN YOUNG PEOPLE AND MATERNITY SERVICES)

DATA SET SEGMENT RECORDS TOTAL

ORGANISATION CODE (CODE OF PROVIDER)

YEAR AND MONTH OF REPORTING PERIODThe Data Set File Trailer Row is present only once, as the last record in the submission file.
DATE AND TIME DATA SET CREATED
DATA SET IDENTIFIER (CHILDREN YOUNG PEOPLE AND MATERNITY SERVICES)
DATA SET SEGMENT RECORDS TOTAL
ORGANISATION CODE (CODE OF PROVIDER)

The Data Set File Trailer Row is present only once, as the last record in the submission file.Below is an example of a submission file for the Maternity Data Set:

HDR|2010-04|2010-05-31T23:34:00|MAT|1.01|RX7   (Data Set File Header Row)
SEG|MAT00x|1234567890|2010-09-03|2010-04-26|2010-04-28 (Data Set Segment Row for Antenatal Admission Segment)
SEG|MAT00x|0456789123|2010-04-13|5678901234|06|2010-04-14T16:06:00 (Data Set Segment Row for Critical Incident/Complications Segment)
TRL|2010-04|2010-05-31T23:34:00|MAT|00002|RX7  (Data Set File Trailer Row)

This table details the Data Elements used in the different versions of the Commissioning Data Sets and the validation applied in each CDS TYPE. 

This table is also available to download in Excel format from the CDS Supporting Information section of the NHS Data Model and Dictionary website.

Commissioning Data Set Versions

Table Structure

This table is structured with separate rows for each Data Element and separate columns for each CDS TYPE.  Where the rules have changed between versions, each set of rules has its own sub-row.  The cells within the body of the table show the validation applied to a Data Element for a specific CDS TYPE.

Commissioning Data Set Versions
The following notation is used in the "Version" column to identify the version or versions of the Commissioning Data Sets that the validation rule applies to.

V6-1 - CDS Version CDS006 Type List (incorporates Version CDS 6-1)
V5 - CDS Version NHS005 Type List

Where the same rules apply to several Commissioning Data Sets the first and last version are identified.

V5:6-1 Commissioning Data Set Version 5 through to Version 6-1

Where a Data Element is no longer available in a Commissioning Data Set the version number is suffixed with =R

Notation used in each table cell

Blank cell - the CDS TYPE does not include the Data Element. 
Populated cell - the CDS TYPE includes the Data Element.  The notation includes the content validation, optional population validation and optional additional use cases for the Data Element. 

Content validation
The content validation falls into one of the following two types:

F - The format is validated, for example the format of a DATE must comply with the XML standard
V - The Data Element is validated against an explicit list of permitted values

Population validation
Where a Data Element is required, the content validation is suffixed with a population validation code:

Technical constraints
M - This Data Element is mandatory in the XML schema.  Submissions will not flow if this Data Element is absent
C - There are conditions where the Data Element must be populated.  In these conditions, messages will not flow if this Data Element is absent
Business constraints
R - Data required as part of NHS business rules to meet NHS business requirements. Organisations are obliged to provide this Data Element for activity provided or commissioned by the NHS.
* - There are conditions where the Data Element must not be populated.  Business rules for the anonymisation of data should be applied as per the guidance issued in Security Issues and Patient Confidentiality.

Additional use cases

Secondary Uses Service business rules:

S1 This mandatory CDS DATE is used as the originating date to determine the mandatory CDS ACTIVITY DATE.
S2 The Secondary Uses Service DOES NOT support the use of the CDS TEST INDICATOR Therefore this Data Element must not be used.
S3 For Security Issues and Patient Confidentiality for further information.
S4 Used to ensure the correct sequencing of multiple and/or subsequent Commissioning Data Set submissions.
S5 These Organisation Codes must be present and registered with the Secondary Uses Service. The Commissioning Data Set Schema does not logically validate the content value of this data.
S6 All CDS REPORT PERIOD START DATES and CDS REPORT PERIOD END DATES must be consistent in all Commissioning Data Sets contained in a BULK Interchange submission.
The CDS REPORT PERIOD START DATE must be on or before the CDS REPORT PERIOD END DATE.
The CDS ACTIVITY DATE is a mandatory Data Element and must fall within the period defined. See the Commissioning Data Set Submission Protocol.
S7 See the Commissioning Data Set Addressing Grid
S8 These Data Elements are required for correct processing by the Secondary Uses Service. If omitted, the Secondary Uses Service will reject the Commissioning Data Set data.
S9 The CDS UNIQUE IDENTIFIER is a mandatory data item when using the Net Change Protocol. When using the Bulk Update Protocol this data item is optional but it is strongly advised that where it can be correctly generated and maintained it should be used/ See the Commissioning Dara Set Submission Protocol. When using the Bulk Update Protocol this data item is optional but it is strongly advised that where it can be correctly generated and maintained it should be used. See the Commissioning Data Set Submission Protocol.
S10 For CDS V6 TYPE 170 - ADMITTED PATIENT CARE - DETAINED AND/OR LONG TERM PSYCHIATRIC CENSUS COMMISSIONING DATA SET, the CDS ACTIVITY DATE contains the CDS CENSUS DATE which is also the DETAINED AND (OR) LONG TERM PSYCHIATRIC CENSUS DATE.
S11 For the following CDS TYPES, the CDS ACTIVITY DATE must contain the DATE OF ELECTIVE ADMISSION LIST CENSUS which is usually the end of the Period being reported:
CDS V6 TYPE 030 - ELECTIVE ADMISSION LIST - END OR PERIOD CENSUS (STANDARD) COMMISSIONING DATA SET
CDS V6 TYPE 040 - ELECTIVE ADMISSION LIST - END OR PERIOD CENSUS (OLD) COMMISSIONING DATA SET
CDS V6 TYPE 050 - ELECTIVE ADMISSION LIST - END OR PERIOD CENSUS (NEW) COMMISSIONING DATA SET
S12 These PERSON BITH DATE Data Elements mist use dates between 01/01/1880 and 31/12/2999 in order to pass validation.S12 These PERSON BIRTH DATE Data Elements must use dates between 01/01/1880 and 31/12/2999 in order to pass validation.
S13 Data Elements reporting a DATE (which is not PERSON BIRTH DATE Data Element) must use dates between 01/010/1900 and 31/12/2999 in order to pass validation.
S14 For Data Elements reporting a TIME, the hour portion must be between 00 and 23 inclusive in order to pass validation.

Healthcare Resource Groups:

H4 This Data Element is used by the Secondary Uses Service to derive Healthcare Resource Group 4.  Failure to correctly populate this Data Element is likely to result in an incorrect Healthcare Resource Group, usually associated with lower levels of healthcare resource.

Additional notation
† - This notation has been applied to the following items:
CDS TYPE 021 Future Out-Patient Commissioning Data Set - Following consultation, piloting and proof that all items are appropriate, this Commissioning Data Set will be available for referrals without appointments, future scheduled appointments and cancelled appointments where the appointment date is in the future. In the interim it is recommended this CDS TYPE is only used for piloting.
Lead Care Activity Indicator - this Data Element is undefined, must not be submitted and should not flow in the Commissioning Data Sets.
LOCATION TYPE - the definition and value list for this Data Element is under review. Dependent on the review findings changes may be piloted and then approved. Until that time, this Data Element should not flow in the Commissioning Data Sets.
ADMINISTRATIVE CATEGORY (AT START OF EPISODE) and LEGAL STATUS CLASSIFICATION CODE (AT START OF EPISODE) - these Data Elements have not been piloted and therefore should not flow in the Commissioning Data Sets.

The Standard Contract

The Standard Contract Schedule 5 requires Health Care Providers to ensure that the following Commissioning Data Sets are submitted to the Commissioners on a monthly basis within 5 Operational Days of the end of the month to which the data sets relate, so that the data sets are completed by the applicable Reconciliation Point:

• Admitted Patient Care General Episode Commissioning Data Set;
• Out-patient Attendance Commissioning Data Set;
• Accident and Emergency Attendance Commissioning Data Set;
• Elective Admission List Commissioning Data Set - End of Period Census (Standard); from April 2007
• Admitted Patient Care Delivery Episode Commissioning Data Set;
• Admitted Patient Care Birth Episode Commissioning Data Set;
• Admitted Patient Care Detained / Long Term Psychiatric Census Commissioning Data Set;
• Admitted Patient Care Other Delivery Commissioning Data Set;
• Admitted Patient Care Other Birth Event Commissioning Data Set