| Name | Flags | Card. | Type | Description & Constraints |
|---|---|---|---|---|
  Availability | ΣN | Element | Availability data for an {item} Elements defined in Ancestors: id, extension | |
  period | Σ | 0..1 | Period | When the availability applies |
| availableTime | ΣC | 0..* | Element | Times the {item} is available + Rule: Cannot include start/end times when selecting all day availability. |
  daysOfWeek | Σ | 0..* | code | mon | tue | wed | thu | fri | sat | sun Binding: Days Of Week (Required) |
| allDay | ΣC | 0..1 | boolean | Always available? i.e. 24 hour service |
| availableStartTime | ΣC | 0..1 | time | Opening time of day (ignored if allDay = true) |
 availableEndTime | ΣC | 0..1 | time | Closing time of day (ignored if allDay = true) |
| notAvailableTime | Σ | 0..* | Element | Not available during this time due to provided reason |
 description | Σ | 0..1 | string | Reason presented to the user explaining why time not available |
| during | Σ | 0..1 | Period | Service not available during this period |
| Documentation for this format | ||||