**Code** | **Display** | **Definition** | **V2 Concept Comment** | **V2 Concept Comment As Published** |

Q<integer>S | every <integer> seconds | every <integer> seconds | This is not a real code, but guidelines how to construct the codes. | |

Q<integer>M | every <integer> minutes | every <integer> minutes | This is not a real code, but guidelines how to construct the codes. | |

Q<integer>H | every <integer> hours | every <integer> hours | This is not a real code, but guidelines how to construct the codes. | |

Q<integer>D | every <integer> days | every <integer> days | This is not a real code, but guidelines how to construct the codes. | |

Q<integer>W | every <integer> weeks | every <integer> weeks | This is not a real code, but guidelines how to construct the codes. | |

Q<integer>L | every <integer> months (Lunar cycle) | every <integer> months (Lunar cycle) | This is not a real code, but guidelines how to construct the codes. | |

Q<integer>J<day#> | repeats on a particular day of the week, | repeats on a particular day of the week, | This is not a real code, but guidelines how to construct the codes. | From the French jour (day). If <integer> is missing, the repeat rate is assumed to be 1. Day numbers are counted from 1=Monday to 7=Sunday. So Q2J2 means every second Tuesday; Q1J6 means every Saturday. |

BID | twice a day at institution-specified times | twice a day at institution-specified times | (e.g., 9AM-4PM) | (e.g., 9AM-4PM) |

TID | three times a day at institution-specified times | three times a day at institution-specified times | (e.g., 9AM-4PM-9PM) | (e.g., 9AM-4PM-9PM) |

QID | four times a day at institution-specified times | four times a day at institution-specified times | (e.g., 9AM-11AM-4PM-9PM) | (e.g., 9AM-11AM-4PM-9PM) |

xID | "X" times per day at institution-specified times, where X is a numeral 5 or greater. | "X" times per day at institution-specified times, where X is a numeral 5 or greater. | This is not a real code, but guidelines how to construct the codes. | (e.g., 5ID=five times per day; 8ID=8 times per day) |

QAM | in the morning at institution-specified time | in the morning at institution-specified time | | |

QSHIFT | during each of three eight-hour shifts at institution-specified times | during each of three eight-hour shifts at institution-specified times | | |

QOD | every other day | every other day | (same as Q2D) | (same as Q2D) |

QHS | every day before the hour of sleep | every day before the hour of sleep | | |

QPM | in the evening at institution-specified time | in the evening at institution-specified time | | |

C | service is provided continuously between start time and stop time | service is provided continuously between start time and stop time | | |

U <spec> | for future use, where <spec> is an interval specification as defined by the UNIX cron specification. | for future use, where <spec> is an interval specification as defined by the UNIX cron specification. | This is not a real code, but guidelines how to construct the codes. | |

PRN | given as needed | given as needed | | |

PRNxxx | where xxx is some frequency code | where xxx is some frequency code | This is not a real code, but guidelines how to construct the codes. | (e.g., PRNQ6H); given as needed over the frequency period. |

Once | one time only. | one time only. | This is also the default when this component is null. | This is also the default when this component is null. |

Meal Related Timings | <timing>C ("cum")<meal> | <timing>C ("cum")<meal> | This is not a real code, but guidelines how to construct the codes. | |

A | Ante (before) | Ante (before) | This is not a real code, but guidelines how to construct the codes. | |

P | Post (after) | Post (after) | This is not a real code, but guidelines how to construct the codes. | |

I | Inter | Inter | This is not a real code, but guidelines how to construct the codes. | (e.g., between this meal and the next, between dinner and sleep |

M | Cibus Matutinus (breakfast) | Cibus Matutinus (breakfast) | This is not a real code, but guidelines how to construct the codes. | |

D | Cibus Diurnus (lunch) | Cibus Diurnus (lunch) | This is not a real code, but guidelines how to construct the codes. | |

V | Cibus Vespertinus (dinner) | Cibus Vespertinus (dinner) | This is not a real code, but guidelines how to construct the codes. | |