Frequency and Duration — How to Write It

Frequency is a promise. If the plan of care says 2w1, 1w3, you are committing to that pattern — and a visit you did not make is as much of a problem as one you made without an order.

Reading the notation

2w1, 1w3 means two visits a week for one week, then one visit a week for three weeks.

Always add up the total before you commit. A frequency that runs past the end of the certification period is a scheduling problem you have just handed to someone else.

What a range commits you to

If you write 1–2w4, you must make at least the minimum every week. A range is not flexibility for you; it is a window agreed with the physician. Missing the minimum needs a missed-visit note and, usually, an order change.

Write ranges only when the clinical picture genuinely justifies one. A precise frequency is easier to defend and easier to schedule.

PRN visits

A PRN visit needs:

• A stated reason on the plan of care — "PRN 2 for wound deterioration", not "PRN 2"
• A number, so it is bounded
• Documentation at the time showing the reason was met

An unqualified PRN order is not a usable order.

Matching frequency to skilled need

The frequency has to follow from the documented need, not from habit or from what fits the schedule.

• Front-load. The highest-risk window is the first days after a hospital discharge. An RN should be in the home within the first week of the SOC.
• Observation, assessment, and education runs a maximum of three weeks, typically 3w1, 2w2.
• One visit a week is not medically necessary on its own — if that is all the patient needs, examine whether they still need us.
• Taper. A frequency that never steps down suggests teaching that is not progressing. Either change the approach or move toward discharge.

Standard patterns are on Plotting Visits.

Duration

Duration is how long the frequency runs, and it must fit inside the certification period. At recertification you rewrite it based on the patient in front of you — not by copying the last one forward.

When the patient needs more, or less

Both directions need an order. Document:

• What changed clinically
• What you recommended, and to whom
• The physician's response
• The new frequency and its start date

Then tell the scheduler. A frequency change that lives only in the chart does not happen.

Missed visits

If a visit in the ordered frequency does not happen:

• Document why — patient refused, not home, hospitalized, weather
• Document what you did about it — rescheduled, notified the physician
• If the pattern cannot be met, get the frequency changed rather than leaving a gap

A missed visit with a clear note is a managed event. A gap with no note is a finding.

Related

• Plotting Visits
• Verbal Orders and Clarifications
• Skilled Need — The Coverage Test