NHS SERVICE AGREEMENT IDENTIFIER is the same as attribute NHS SERVICE AGREEMENT IDENTIFIER.
Where a PATIENT is receiving Non-Contract Activity treatment, Health Care Providers submitting the Commissioning Data Sets should populate the first 3 characters of the NHS SERVICE AGREEMENT IDENTIFIER with the letters 'OAT' (in capital letters). The remaining characters continue to be locally-populated as required.
Where the ACTIVITY in the Commissioning Data Set record should be excluded from the National Tariff Payment System tariff, an '=' (equals sign) should be entered as the last character in the NHS SERVICE AGREEMENT IDENTIFIER. The position of the last character depends on any preceding characters; for example where the field is otherwise blank, the '=' sign would be the first character. Where the first three characters are 'OAT' as above, the '=' sign is entered as the 4th character. The '=' sign provides a general exclusion from National Tariff Payment System processing by the Secondary Uses Service which should be used for unusual circumstances, or where more specific rules regarding population of other data fields used in the Healthcare Resource Group Payment Grouper cannot be implemented due to local system restrictions.COMMISSIONING SERIAL NUMBER will be replaced with NHS SERVICE AGREEMENT IDENTIFIER, which is the most recent approved national information standard to describe the required definition.