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Vocabulary Work Group   Maturity Level : N/A External Use Context : Any

This code system ( is defined as part of HL7 v3.


Defining URL:
Version: 2018-08-12 2019-07-31
Name: v3.CalendarCycle
Title: v3 Code System CalendarCycle

Calendar cycle identifiers

OID: 2.16.840.1.113883.5.9 (for OID based terminology systems)
Source Resource XML / JSON

This Code system is used in the following value sets:

Release Date: 2018-08-12 2019-07-31

Level Code Display Definition
1 (_CalendarCycleOneLetter) Abstract Deprecated  
2   CW week (continuous)
2   CY year
2   D day of the month
2   DW day of the week (begins with Monday)
2   H hour of the day
2   M month of the year
2   N minute of the hour
2   S second of the minute
1 (_CalendarCycleTwoLetter) Abstract Deprecated  
2    CW
2    CY
2    D
2    DW
2    H
2    M
2    N
2    S
2   CD day (continuous)
2   CH hour (continuous)
2   CM month (continuous)
2   CN minute (continuous)
2   CS second (continuous)
2   DY day of the year
2   WY week of the year
1 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).