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4,129,721 items of data are available, covering 410,293 participants. Array indices run from 0 to 212.
There are 7998 distinct values.
Mean = 2009-12-01
Counts of participants/items last updated 13 Apr 2019.
This field provides for each participant the date each ICD10 diagnosis code was first recorded in any position (e.g. as the primary diagnosis or a secondary diagnosis) across all their episodes in hospital. The date provided in this field is the episode start date (Field 41083; epistart in the hesin table), or if this was missing the admission date (Field 41096; admidate in the hesin table). The corresponding ICD10 diagnosis codes can be found in data-field Field 41270 and they can be linked using the array structure.