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Core information standard: Implementation Guidance

Revision History

VersionDateSummary of Changes
1.010/07/2019Publication version
1.125/10/2019Updated sections: purpose of document; pregnancy status guidance
1.219/03/2020Update to guidance for ‘sex’ and ‘gender’ following a series of calls with NHS Digital.
1.419/08/2021Updated due to updated to core information standard v2

Page last updated: 04 February 2026