Resource 593
Name:First occurrence of health outcomes defined by 3-character ICD10 code

Describes the "First Occurrence" data available via the UK Biobank Showcase.

This resource can be downloaded or viewed using the link: first_occurrences_outcomes.pdf

If you have wget available (typically on linux systems), then you can also obtain a copy using the command

 wget  -nd  biobank.ctsu.ox.ac.uk/ukb/ukb/docs/first_occurrences_outcomes.pdf