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Data Standards


The Data Standards team support the assurance and development of all NHS Wales data standards and maintain the NHS Wales Data Dictionary.

The team is responsible for:

  • The preparation and publication of all NHS Wales Data Standards Change Notices;

  • The development of a range of data standards;

  • The maintenance of the NHS Wales Data Dictionary; An offline version of the Data Dictionary is available on request. If you require an offline copy please contact us using the details below.

  • The preparation and publication of all NHS Wales Analysis Method Notices.

  • The provision of data standards advice via the national Data Standards Helpline; and

  • The provision of secretarial support to the Welsh Information Standards Board (WISB).


For all queries, please contact the Data Standards Helpline using the contact details below:

Email: Data Standards Team

Digital Health and Care Wales

Tŷ Glan-yr-Afon 

21 Cowbridge Road East 


CF11 9AD