Getting insurance to pay for physical therapy comes down to three things: understanding what your plan actually covers, getting the right documentation in place before you start, and knowing how to push back if a claim is denied. Most health insurance plans do cover physical therapy to some degree, but the number of visits, cost-sharing, and approval requirements vary widely. Here’s how to navigate each step.
Check Your Plan’s PT Benefits First
Before you book an appointment, call the member services number on the back of your insurance card and ask specific questions. You want to know: Does your plan require a physician referral before seeing a physical therapist? Is prior authorization required? How many visits per year does your plan cover? What’s your copay or coinsurance per visit? Is there a separate deductible for rehab services?
Write down the answers, including the name of the representative and a reference number for the call. Insurance companies sometimes give conflicting information, and having a record protects you if a claim is later denied based on something you were told was covered.
Pay close attention to whether your plan distinguishes between in-network and out-of-network providers. Seeing an in-network physical therapist can cut your out-of-pocket costs dramatically. Many plans cover 80% of in-network PT but only 50% out of network, and out-of-network visits often apply to a higher deductible.
You May Not Need a Doctor’s Referral
Every state allows some form of “direct access” to physical therapy, meaning you can start treatment without a referral from your doctor. In states like Colorado, Maryland, Utah, Nevada, and Massachusetts, there are no visit or time limits on direct access. You can see a physical therapist for as long as clinically needed without ever getting a referral.
Other states impose limits. In California, you can go directly to a physical therapist for up to 45 days or 12 visits, whichever comes first. New York allows 10 visits or 30 days. Kansas caps it at 10 visits or 15 business days. After those thresholds, you’ll need a physician’s referral to continue.
Here’s the catch: even if your state allows direct access, your insurance plan may still require a referral for coverage. State law governs whether a physical therapist can legally treat you, but your insurance contract governs whether they’ll pay for it. Always confirm with your insurer, not just your state’s rules.
What “Medically Necessary” Means to Your Insurer
Insurance companies approve physical therapy claims based on a concept called medical necessity. This isn’t just about having pain or a diagnosis. Your insurer wants evidence that skilled therapy, not just general exercise, is required to treat your condition. The distinction matters: if the exercises you’re doing could be performed at home without professional guidance, the insurer may argue that continued visits aren’t medically necessary.
According to Medicare’s coverage criteria (which many private insurers model their own policies after), documentation must show your functional status before treatment began, measurable progress at regular intervals, and evidence that a trained clinician’s hands-on involvement is needed at each session. Your therapist needs to demonstrate that what they’re doing requires professional expertise, whether that’s manual therapy techniques, neuromuscular retraining, or progressively complex exercise programming that a patient couldn’t safely do alone.
This is why your physical therapist’s documentation matters as much as the treatment itself. If your therapist isn’t recording objective measurements of your progress (range of motion in degrees, strength scores, functional test results), your insurer has grounds to deny continued visits. Ask your therapist early on how they’re tracking and documenting your improvement.
How Prior Authorization Works
Many insurance plans require prior authorization before physical therapy begins or before approving additional visits beyond an initial block. Your physical therapist’s office typically handles this, but you should understand the process so you can follow up if something stalls.
The therapist submits an authorization request that includes the initial evaluation results and a full plan of care specifying the number of visits requested and the expected duration of treatment. Some insurers, like UnitedHealthcare, require providers to request authorization for the entire plan of care at once. If the submission is incomplete, the insurer will attempt to contact the provider for missing information, but delays can mean gaps in your treatment.
Don’t assume your provider has handled authorization. Ask at your first visit whether prior authorization was obtained, and request a copy of the approval letter or reference number. If you proceed with treatment before authorization is confirmed, you risk being responsible for the full bill.
Medicare Coverage and the Spending Threshold
Medicare Part B covers outpatient physical therapy at 80% after you meet your annual deductible. There’s no hard cap on the number of visits, but there is a financial threshold that triggers extra scrutiny. For 2026, that threshold is $2,480 for physical therapy and speech-language pathology services combined.
Below that amount, claims process normally. Once your therapy costs exceed $2,480, your therapist must add a special modifier (called the KX modifier) to each claim, confirming that continued services are medically necessary and that documentation in your medical record supports it. Claims submitted above the threshold without this modifier are automatically denied. If your therapist expects your treatment to be extensive, ask them early whether they’re prepared to provide the documentation needed to justify services beyond the threshold.
Medicare also currently covers telehealth physical therapy sessions through December 31, 2027. After that date, physical therapists will no longer be able to bill Medicare for services delivered remotely. If you’re relying on virtual PT sessions through Medicare, be aware this benefit has an expiration date.
What to Do If Your Claim Is Denied
Denials are common and often reversible. The most frequent reason for denial is “lack of medical necessity,” which usually means the insurer reviewed the documentation and decided you weren’t making enough measurable progress to justify ongoing skilled care, or that the documentation submitted didn’t adequately demonstrate it.
Start by requesting the denial in writing. The letter should state the specific reason for denial and your appeal rights, including deadlines. Most plans give you 30 to 180 days to file an appeal, depending on the type of plan.
A strong appeal includes three components: subjective findings (your description of how the condition limits your daily life), objective findings (measurable data confirming functional impairment, such as range-of-motion measurements or standardized test scores), and a clinical argument explaining why the proposed treatment will address the impairment. Attach copies of all relevant medical records and test results. Your physical therapist and referring physician can both contribute to this letter, and having both weigh in strengthens the appeal significantly.
If your first-level appeal is denied, most plans offer a second-level review, often by an independent reviewer outside the insurance company. Many states also allow you to request an external review through your state’s insurance department. These external reviews overturn denials more often than people expect, particularly when the documentation is thorough.
If You’re Paying Out of Pocket
If your plan doesn’t cover physical therapy, covers too few visits, or you’re seeing an out-of-network therapist, you can still seek partial reimbursement. Ask your therapist’s office for a superbill, which is an itemized receipt designed specifically for insurance reimbursement. A proper superbill includes the provider’s credentials and contact information, your diagnosis codes, the specific procedure codes for each service performed, the date and duration of each session, and the amount charged.
The procedure codes matter because your insurer uses them to determine what’s reimbursable. Common physical therapy codes include 97110 (therapeutic exercises for strength, flexibility, and endurance), 97112 (neuromuscular re-education for balance and coordination), and 97530 (therapeutic activities simulating real-world functional tasks like getting in and out of a car). When you verify your benefits, ask which of these codes are covered under your out-of-network benefits so you know what to expect back.
Submit the superbill to your insurer with a claim form, which you can usually download from the insurer’s website. Reimbursement for out-of-network claims is typically based on what the insurer considers a “reasonable and customary” fee for your area, which may be less than what you paid.
Workers’ Compensation Is a Different Process
If your physical therapy is related to a workplace injury, the process bypasses your regular health insurance entirely. Workers’ compensation covers the full cost of treatment with no copays or deductibles to the injured worker. Your employer’s workers’ comp insurer pays the bills directly.
Authorization requirements depend on the type of service. Under the federal workers’ compensation system, routine office visits and basic physical therapy often don’t require advance authorization, especially if an initial authorization form was issued at the time of injury. More complex or extended treatment plans may require authorization through the insurer’s portal or by fax. One important protection: if the workers’ comp insurer reduces a bill based on their fee schedule, the provider cannot charge you the difference. You should never receive a balance bill for workers’ comp-covered physical therapy.