The Commissioning Data Sets have notation to identify the business and/or processing rules which apply to individual Data Elements. This notation appears in the Rules column of the Commissioning Data Set details page.
Population Validation
All Data Elements are subject to length validation. Some Data Elements are also subject to format and content validation against a list of permitted values defined in the NHS Data Model and Dictionary. The value lists are held on the Attribute which the Data Element is based on, plus default codes which are held on the Data Element itself.
| RULE | POPULATION VALIDATION |
| 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 as defined in the NHS Data Model and Dictionary. |
Business Rules
Some Data Elements are subject to additional Business Rules as indicated below:
- Prefix H = Healthcare Resource Group Business Rules.
- Prefix I = CDS-XML Schema anomalies and issues.
- Prefix N = NHS Data Standards and Policy Rules
- Prefix S = Secondary Uses Service Business Rules
| PREFIX | BUSINESS RULES: H - Healthcare Resource Group Business Rules |
| H4 | This Data Element is used by the Secondary Uses Service to derive the 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. |
| PREFIX | BUSINESS RULES: I - CDS-XML Schema Anomalies and Issues |
| I1 | This is a known schema anomaly and has been registered for future resolution. |
| I2 | See the specifications in the NHS Data Model and Dictionary for the specific format characteristics of this Data Element. |
| I3 | There is no national requirement to flow Healthcare Resource Group 4 (HRG4) through the Commissioning Data Sets, see DSCN 17/2008. |
| PREFIX | BUSINESS RULES: N - NHS Data Standards and Policy Rules |
| N1 | Psychiatric PATIENTS only. |
| N2 | Not defined or approved by the Information Standards Board for Health and Social Care. |
| N3 | The definition and value list for this data is under review. |
| N4 | Up to 20 codes per daily activity occurrence may be recorded. |
| N5 | This data should only flow in Commissioning Data Set versions 6-0 and 6-1 for PATIENTS detained under the Mental Health Act prior to the Mental Health Act 2007. |
| N6 | This data should only flow in Commissioning Data Set version 6-1for PATIENTS detained under the Mental Health Act 2007. |
| N7 | From Commissioning Data Set version 6-0 onwards, the use of the DETAINED AND (OR) LONG TERM PSYCHIATRIC CENSUS DATE in the location group is optional as it must be carried in the Episode Characteristics. |
| PREFIX | BUSINESS RULES: S - Secondary Uses Service Business Rules |
| S1 | This mandatory Commissioning Data Set 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 | See 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 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 Set records 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 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 of Period Census (Standard) Commissioning Data Set CDS V6 Type 040 - Elective Admission List - End Of Period Census (Old) Commissioning Data Set CDS V6 Type 050 - Elective Admission List - End Of Period Census (New) Commissioning Data Set |
| 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 a PERSON BIRTH DATE Data Element) must use dates between 01/01/1900 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 |