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Data Registers Service REST API


Use this API to access a wide range of live lists of lookup data with our Data Registers Service. Each register is managed by a custodian across a range of organisations. In each case, they represent the approved version of that data.

Examples of these lookup tables include organisation codes, postcodes and diagnosis codes.

You can see what data registers are available using our data registers tool.

Excluded from the service are:

  • patient confidential data
  • transactional data - the source data which is supplied from external parties to NHS Digital for use in systems. For example, workforce returns and CDS submissions
  • management reference data for corporate systems such as human resources


Data Registers Service REST API documentation