http://terminology.hl7.org/CodeSystem/v3-CalendarCycle
Code | Display | Definition |
CD | day (continuous) | |
CH | hour (continuous) | |
CM | month (continuous) | |
CN | minute (continuous) | |
CS | second (continuous) | |
CW | week (continuous) | |
CY | year | |
DM | day of the month | |
DW | day of the week (begins with Monday) | |
DY | day of the year | |
HD | hour of the day | |
MY | month of the year | |
NH | minute of the hour | |
SN | second of the minute | |
WM | week of the month | The week with the month's first Thursday in it (analagous to the ISO 8601 definition for week of the year). |
WY | week of the year |