"Insurance Approved Six PT Visits." Recovery Doesn't Work That Way, and Neither Do the Rules

The rehab-cutoff story repeats across the recovery threads we studied: the stroke survivor mid-progress, the post-surgery knee at week six of a twelve-week protocol, and a letter saying therapy is no longer covered. National reporting has documented people whose coverage ran out before they could walk again. The rules are better than the letters imply, on Medicare especially, and the fight is mostly documentation. Here's the map by payer.

Medicare: the cap is dead; long live the threshold

• Since 2018 there is no therapy cap. What exists is an annual dollar threshold (a couple of thousand dollars, adjusted yearly): past it, the therapist appends the KX modifier attesting continued medical necessity, and covered care continues. A much higher second threshold can trigger record review, never an automatic stop.
• If a clinic says "Medicare visits are used up," the response is: "Medicare has no visit cap; is this about the KX threshold? Please continue billing with the KX modifier if therapy remains medically necessary." Clinics know; front desks sometimes don't.
• Maintenance therapy is covered: the Jimmo settlement applies to outpatient therapy too: skilled care to maintain function or slow decline (Parkinson's, MS, post-stroke plateaus) is covered without an improvement requirement. "Plateaued" is a treatment-planning fact, never a coverage cutoff.
• The real Medicare requirements: a plan of care signed by a physician (recertified periodically) and documentation supporting necessity. Gaps there, not caps, cause most legitimate denials.

Commercial plans: know which wall you hit

1. The plan-design cap: "20 visits per year" written into your benefits. Check the actual number and whether it's combined across PT/OT/speech (common) or per discipline. These bend less, but exceptions exist: some plans grant additional medically necessary visits on appeal, and parity arguments apply when habilitative/rehabilitative limits are stingier than comparable medical benefits. Habilitative care (gaining skills never had, e.g., pediatric) is an ACA essential health benefit with its own protections.
2. The utilization-review denial: authorization granted 6 visits, therapy needs 18, and the renewal request is denied "for lack of progress" or "can continue with home exercise." This is the prior-auth treadmill, and it reverses on evidence: the therapist submits objective measures (range of motion, gait speed, functional scores) and remaining goals, the physician adds a supporting note, and a peer-to-peer review gets requested; these reviews overturn a large share of therapy denials.
3. Escalate what stands: the formal appeal ladder, with the surgical protocol attached where relevant: "the operative rehab protocol specifies 12 weeks" is strong appeal language for post-surgical cases.
4. Watch the visit-burn rate: if your plan has a hard cap, using early visits on things a home program covers wastes the constrained resource. Say the quiet part to your therapist: "I have 20 covered visits; plan around that." Good therapists ration strategically: front-load the skilled work, convert the rest to home programming with periodic check-ins.

When coverage genuinely ends before recovery does

• Ask the cash rate: self-pay PT commonly runs $75 to $150 per session (often below the insurance billed rate), and the cash-price rules apply: ask, compare, and get a Good Faith Estimate. Periodic cash check-ins to progress a home program cost a fraction of full-frequency care.
• Hospital-system clinics have [financial assistance](/blog/hospital-financial-assistance-charity-care): therapy at a nonprofit hospital's outpatient clinic falls under the same 501(r) policies as everything else.
• The home program IS therapy: the evidence for supervised-then-home models is solid; ask the therapist for a written, progressing program with video references, and a recheck schedule.
• Recovery-specific alternates: university PT programs run low-cost clinics, Medicare Advantage members can check supplemental fitness benefits, and community programs (stroke recovery, Parkinson's boxing, aquatics) extend function work for dollars a session.