What recertification actually decides
Recertification is the moment a home health agency decides, with the certifying practitioner, whether a patient still meets the Medicare home health benefit for another certification period. It is not paperwork that trails the clinical work. It is the document set that payment, the plan of care, and the next two 30-day periods all rest on.
Two clocks run at the same time and they are easy to confuse. Medicare pays home health in 30-day periods of care under the Patient-Driven Groupings Model (PDGM), but eligibility is certified in 60-day periods. One 60-day certification therefore covers two 30-day payment periods, and the first period of a certification is where the higher-weighted timing adjustment can apply. Every later period in that certification is classified as late timing.
That single design decision is why a sloppy recertification costs more than one bad form. If the recertification assessment understates function or drops an active diagnosis, the error is not a one-visit problem. It follows the patient for the next 60 days of claims.
The 60-day calendar: what is due, and when
Federal rules set the recertification requirement at least every 60 days when continuous care is still needed, signed and dated by the physician or allowed practitioner who reviews the plan of care (42 CFR 424.22(b)). The comprehensive assessment has its own timing: the recertification assessment is completed during the last five days of the current 60-day certification period, meaning days 56 through 60 counted from the start of care date (42 CFR 484.55(d) and the CMS OASIS follow-up Q&As).
In practice that leaves a narrow, fixed window that moves with every patient calendar:
- Days 1 to 5 of the initial period: start of care assessment completed within five calendar days of the start of care date.
- Days 56 to 60 of every certification period: recertification assessment completed in that window, whether the clinician starts on day 56 and finishes on day 60 or completes it in a single visit.
- Within 30 days of the assessment completion date: OASIS record transmitted, which is a hard reporting deadline separate from the visit timing.
- Every 60 days: plan of care reviewed and the recertification signed, including an estimate of how much longer skilled services are expected to be needed.
Two failure modes show up again and again. The assessment is completed early because the clinician had a convenient visit on day 40, or it slips past day 60 because the visit was never scheduled. Neither one can be repaired by a note. The late assessment is completed as soon as the gap is found, with the reason documented, and the agency accepts the compliance exposure rather than discharging and readmitting a patient to reset the clock.
Who signs, and what they are attesting
The certifying practitioner, whether a physician or an allowed practitioner such as a nurse practitioner, physician assistant, or clinical nurse specialist, is attesting to eligibility, not to the visit schedule. That means the patient is homebound, needs intermittent skilled services, and is under a plan of care the practitioner reviews and signs.
A new face-to-face encounter is not required for recertification. The encounter requirement attaches to the initial certification, and recertification periods can still be denied if the original encounter was never properly documented. Agencies that treat the face-to-face requirement as an annual task create a denial that surfaces months later on a recertification claim.
The recertification also carries the practitioner's clinical judgment about continuing care. If the plan of care simply repeats the previous 60 days with no change in goals, orders, or visit frequency, that is a documentation smell: either the patient is stable enough to reduce service, or the record is not describing what is actually happening in the home.
The billing sequence across a 60-day certification
Since January 1, 2022, home health no longer submits Requests for Anticipated Payment for each period. A single Notice of Admission (NOA) is submitted within five calendar days of the start of care, and that one NOA establishes the period of care and covers contiguous 30-day periods until the patient is discharged. After a discharge is reported, a new NOA is required before any further claims.
Inside one 60-day certification the billing pattern is therefore simple and unforgiving:
- One NOA at admission, filed within five calendar days of the start of care date. A late NOA reduces the period payment by one thirtieth for each day between the start of care date and the date the NOA is accepted.
- One claim per 30-day period, submitted after the period closes, using the period's own dates and its PDGM grouping.
- One recertification covering the next two 30-day periods, with the assessment findings supporting the diagnosis list and the functional level that the grouping depends on.
The recertification is where documentation and billing meet. The diagnosis codes on the claim must be supported by the record, the functional score must reflect what the clinician actually assessed in days 56 to 60, and the plan of care orders must match the services being billed.
Where recertification revenue leaks
Recertification is a revenue document, and most of the leakage is quiet rather than dramatic. Four patterns account for a large share of it:
- Function understated at recert. Section GG scoring that drifts one or two points low at every recertification compounds across the certification, because the functional impairment level drives the case-mix weight for both 30-day periods.
- Diagnoses not reconciled. Conditions that were coded at start of care get dropped at recert because the clinician copied the prior plan of care instead of reconciling the medication list and problem list.
- Late or early assessment. An assessment outside days 56 to 60 either fails the conditions of participation or produces a grouping that does not reflect the patient at the transition point.
- Recertification signed after the claim is submitted. A missing or undated practitioner signature on the recertification is a documentation denial that is entirely avoidable with a tracking list.
There is also a visit-count risk that rarely gets attention: if the recertification period comes in under the LUPA threshold, the 30-day period pays per visit instead of at the period rate. Reviewing the expected visit pattern before the period closes is cheaper than explaining a low-utilization payment afterward.
A recertification workflow that holds
The agencies that stop chasing recertifications tend to run the same handful of controls, and none of them require new software:
- A rolling 14-day look-ahead list of every patient hitting days 50 to 60, owned by one named scheduler rather than a shared inbox.
- A pre-visit packet for the recertification visit: current medication list, active diagnoses, prior functional scores, and the goals from the previous plan of care.
- A second-set-of-eyes review of the recertification assessment before it locks, checking functional scoring against the visit notes rather than against the prior assessment.
- Diagnosis reconciliation as a standing step, not an afterthought, so HCC and risk-adjustment capture stays accurate for Medicare Advantage patients.
- A weekly signature tracker that ages every recertification from visit date to signed date, with anything past ten days escalated.
For agencies running clinical documentation review or outsourced coding, the recertification is also the natural QA checkpoint: a sample of recertifications reviewed each month will surface scoring drift and diagnosis drift long before a payer does.
What to check when a recertification claim denies
Most recertification denials fall into a short list, and each has a specific remedy:
- Certification dates that do not line up with the 30-day period being billed. Pull the certification, the assessment completion date, and the period start and end dates onto one page and compare them.
- A recertification that is unsigned, signed by the wrong discipline, or dated after the claim submission. Obtain a corrected, dated signature where policy allows, and document the sequence.
- An assessment completed outside the days 56 to 60 window. The assessment stands; what has to be documented is when the gap was found and what was done.
- Homebound status described in a single sentence that would not persuade a reviewer. Recertification is the right time to refresh the homebound narrative, since it is the eligibility criterion most often challenged on review.
Recertification feeds the quality side too
The same assessment that supports payment also feeds the Home Health Quality Reporting Program. Recertification OASIS data drives reported outcomes and, through them, the star ratings and value-based purchasing performance that referral sources look at.
That has a practical consequence for sequencing: an agency that treats recertification as a coding task and not a clinical one tends to score well on claims and poorly on outcomes, because the items that feed quality measures were filled in last and with the least attention. The reverse is also true. Accurate functional scoring at recertification supports both payment accuracy and the publicly reported outcomes, which is why the review step belongs with the clinical team even when coding is outsourced.
One timing note for 2026: the OASIS-E2 instrument has been in effect since April 1, 2026, so recertification workflows, EHR templates, and clinician training should already reflect the current item set rather than the earlier E1 version.
Where to start this month
If recertification is currently managed through reminders and goodwill, start with three steps. Pull the last 90 days of recertifications and measure how many assessments landed in days 56 to 60, how many practitioner signatures took more than ten days, and how many recertification claims were denied for a certification or documentation reason.
Those three numbers tell you whether the problem is scheduling, signature control, or documentation quality, and each has a different fix. Then put one person's name against the 14-day look-ahead list, because a recertification window that nobody owns is a window that will be missed.
For agencies that would rather not build the control from scratch, reviewing recertification accuracy alongside OASIS review and coding is the cheapest way to find the drift before a payer or a reviewer does.