Duration must always be a unit of time. It is the length of time the service will be provided. Every service has a unit of time in the waiver. For example, respite has a unit of an hour. Duration is the amount of time spent in direct service for a single unit.
Duration is the cumulative amount of direct service that was provided.
A unit of service must be completed within the same calender date. Frequency is the number of times the service objective will occur during a given period of time. In order to accurately compute the duration and frequency on your objective page, you must know your procedure code duration limits. Some codes are daily, some hourly, and others fifteen minutes. This means that residential habilitation, day habilitation, prevocational and supported employment can be more than one hour in duration because they are daily rates.