Each submitted data item and NHS Digital extract field should conform to the format specified in the Format column for the table in question. In the case of submitted data items, they must also conform to the validation rules specified in the four Validation Rules columns.
Within these constraints, the submission portal will accept any characters present in the UTF-8 Basic Latin character set.
Whilst the portal is not specifically designed to reject characters not appearing in this character set, their acceptance has not been tested and NHS Digital cannot guarantee that inclusion in a submission will not result in file rejection.
The submission portal will also accept spaces where there is at least one UTF-8 Basic Latin character before and after a single space, or multiple consecutive spaces.
The portal is not designed to reject submissions that contain leading or trailing ‘white space’ in any field (e.g. spaces, tabs, carriage returns, and newline characters). Leading or trailing ‘white space’ will be removed during processing of submissions, prior to any other validation rules being applied.
In the case of NHS Digital XML extracts all submitted XML reserved characters will be replaced with their escape sequences.
XML reserved characters and their escape sequences.