Notes:
DAY NUMBER (ANTI-CANCER DRUG CYCLE) is calculated from the START DATE (ANTI-CANCER DRUG REGIMEN) and the Start Date of the Anti-Cancer Drug Cycle to determine the 'day' number from the start of regimen eg if regimen started on 23/03/2002 and this particular cycle started on the 25/04/2002 then this would be day 34.

Start Date is an ACTIVITY DATE where ACTIVITY DATE TIME TYPE is National Code 31 'Start Date'.

Anti-Cancer Drug Cycle is a CLINICAL INTERVENTION where CLINICAL INTERVENTION TYPE is National Code 02 'Anti-Cancer Drug Cycle'.

This data element is also known by these names:

Context	Alias
plural	DAY NUMBERS (ANTI-CANCER DRUG CYCLE)