CPT Code for Physical Therapy: How to Choose, Bill, and Get Paid in 2026

The right CPT code tells the payer what happened during a physical therapy visit. 

A CPT code for physical therapy means the evaluation, treatment, or therapeutic service that a physical therapist gives during a patient visit. The most frequently used physical therapy CPT codes are 97161-97163 for evaluation, 97164 for re-evaluation, 97110 for therapeutic exercise, 97530 for therapeutic activities, and 97140 for manual therapy.

In This Guide, We’ll Explore

• Common CPT codes for physical therapy
• PT evaluation and treatment coding
• Therapeutic exercise (97110) vs. therapeutic activities (97530)
• Physical therapy billing units and Medicare’s 8-minute rule
• Medicare PT payment and 2026 KX thresholds
• MPPR and PTA-related payment rules
• PT claim denials and payment issues
• Physical therapy medical billing and RCM support

What Does a Physical Therapy CPT Code Actually Tell the Payer?

A CPT code is just one part of the claim, but it does answer one very important question: What service did the therapist provide?

The diagnosis answers a different question. It describes the need for treatment for the patient.  Units are the amount of timed treatment delivered. Put together, those pieces give the player a better sense of the visit.

Problems usually appear when those details don’t match.

A treatment note may support one service while the claim reports another. The units may not agree with the documented minutes.  An authorization may cover the patient’s condition. It may not cover the specific service that is billed. Any of these situations can cause a denial, a reduction of payment, a request for records or another review, by the payer.

CPT Coding Starts With the Service, Not the Keyword

A therapist might spend a visit working on:

• Strength and range of motion
• Balance and motor control
• Gait
• Functional movement
• Manual techniques
• Self-care activities

Those are completely different forms of work even when they happen within the same appointment.

The first thing a programmer should do is check the treatment note. That shows what treatments have already been done. This helps you pick the code for the service that was recorded.

This is easy to do but it will address a common billing problem: choosing a familiar code just because it is one the practice uses a lot.

Which Physical Therapy Services Are You Billing?

Most PT claims include an evaluation or re-evaluation along with one or more treatment services. The mix of services varies from patient to patient. This is because the treatment depends on the condition being managed. It also depends on what happens during the encounter. Every situation is different. That is why the combination changes.

Start With the Evaluation

For initial physical therapy evaluations, practices commonly use 97161, 97162, or 97163. The codes represent different levels of evaluation complexity.

The medical record should support the level reported.

A patient might have a history but that alone doesn’t make them qualify for the highest evaluation level. What really matters is if the medical records clearly show factors that proves the service was complex.

Then Match the Treatment to the Work Performed

After the evaluation the treatment can include different steps. The billing team must tell them apart by putting all of them under one common code.

What did the therapist actually do, and what problem was that intervention addressing?

That is more useful than starting with a code list and trying to find something that sounds close.

Which CPT Code Should You Use for Therapeutic Exercise?

97110 is the CPT code for the treatment exercise. When performing treatment exercises that concentrate on topics like strength, endurance, flexibility, or movement, healthcare professionals typically employ the code.

Consider a patient healing from a knee injury. During the visit the therapist may work on strengthening and range of motion. These exercises are not merely activities to be listed in the note; the documentation should demonstrate why they were done and how they relate to the patient’s functional limits and treatment goals.

When Does 97110 Make Sense?

Before reporting 97110, look for three things in the documentation:

1. What exercise did the therapist provide?
2. Why did the patient need it?
3. How did the exercise support the treatment plan or functional goal?

A note that says “performed therapeutic exercise” doesn’t give the billing team much information. What can be more helpful is a note that describes the intervention and ties it to the patient’s condition and goals. This connection is especially important if the payer later requests records.

How Is Therapeutic Activity Different From Therapeutic Exercise?

The therapeutic activity CPT code is 97530.

Both 97110 and 97530 can involve movement, which is why they are sometimes confused. The difference is in the type and purpose of the work being performed.

• 97110 is centered on therapeutic exercise.
• 97530 is focused on therapeutic activities that address functional performance.

97110	97530
Exercise-based intervention	Function-based activity
Strengthening	Functional movement
Flexibility	Task-oriented activity
Range of motion	Transfers or functional tasks
Endurance	Dynamic activities

For instance, strengthening a patient’s lower-extremity muscles may support 97110. Working through a functional movement pattern needed for a particular daily activity may support 97530 when the documentation supports that service.

The fact that the patient was moving is not enough to decide between the two. Look at what the therapist was trying to accomplish and how the activity was performed.

Why Does the “7110 CPT Code” Search Create Confusion?

The search term “7110 CPT code description” can cause confusion when someone is actually looking for the therapeutic exercise code.

“7110” is not a complete five-digit CPT code. The intended search may have been for 97110, which is associated with therapeutic exercise.

Search	What It Means
7110	Not a complete five-digit CPT code
71110	Rib radiology service, not PT
97110	Therapeutic exercise
97530	Therapeutic activities

That single-digit difference is no thing, for a physical therapy practice. An incorrect code can change how the payer handles the service leading to a denial or payment issue.

Before you send the claim make sure you check the claim code, the code’s service description, the treatment note and the payers requirements.

How Many Billing Units Should a Physical Therapy Claim Include?

Timed services create another question for the billing team: How many units does the documented treatment time actually support?

For Medicare timed therapy services, the 8-minute rule is used to determine the number of billable units. CMS guidance provides these ranges:

The important part is not to treat every CPT code as if it automatically earns a separate full unit.

The total timed treatment time matters.

Example: 20 Minutes of Treatment

Suppose the therapist documents 20 minutes of therapeutic exercise.

That falls within the 8–22 minute range, so it supports one timed unit under the Medicare rule.

Example: 43 Minutes Across Multiple Services

Now consider a different visit:

• 23 minutes of therapeutic exercise
• 20 minutes of manual therapy

Total timed treatment: 43 minutes

Forty-three minutes falls within the 38–52 minute range, supporting three total timed units.

The practice then allocates those units according to the documented services and treatment time.

CMS guidance provides similar examples for situations involving multiple timed services. The point is straightforward: don’t simply assign one unit to every CPT code and move on.

A Simple Billing Checkpoint

Before a timed PT claim goes out, run through the sequence:

Treatment minutes → CPT codes → Units → Modifiers → Payer rules

This can help a lot. This is a small check, but it can catch problems before they become denials.

What Does Medicare Pay for Physical Therapy?

Not all physical therapy visits are covered by Medicare. How much Medicare pays under the Physician Fee Schedule depends on the type of service being billed.  Medicare also looks at the relative value units assigned to the service. It has geographic adjustments and conversion factors paid according to applicable payment rules.

For 2026, CMS established two Physician Fee Schedule conversion factors:

Those amounts are not what Medicare simply pays for one PT visit or one unit of 97110.

The conversion factor is part of the calculation. The applicable RVUs and geographic adjustments also come into play.

Why Should Billing Teams Compare Expected and Actual Payment?

Imagine a practice submitting dozens of PT claims to the same payer. The claims go through,  payments arrive and nothing looks obviously wrong.

Then someone looks at the actual payments versus the contracted rates and sees a trend: the practice is always getting paid less than expected. If staff simply post the payments and close the claims, that difference can go unnoticed.

A payment variance review can uncover:

• Underpayments
• Incorrect contractual adjustments
• Payer-specific payment differences
• Coding-related reductions
• Unexpected edits
• Incorrect application of payment policies

That makes payment analysis part of physical therapy medical billing, not merely a bookkeeping exercise.

Is There Still a Medicare Physical Therapy Cap?

The old Medicare outpatient therapy cap no longer works as an annual payment ceiling.

Congress repealed the therapy caps in 2018. The current framework uses a KX modifier threshold and targeted medical review instead. CMS requires the KX modifier when applicable services exceed the threshold and continued treatment is medically necessary and supported by documentation.

What Was the Medicare PT Threshold in 2025?

For 2025, the combined PT and speech-language pathology KX threshold was $2,410.

For 2026, CMS increased that threshold to $2,480.

CMS also maintains a $3,000 targeted medical review threshold for PT and SLP services in 2026.

So when a patient approaches the threshold, the billing team shouldn’t tell the patient that Medicare simply stops paying.

There is more to manage.

The practice should:

• Monitor cumulative therapy spending
• Review whether continued treatment remains medically necessary
• Keep supporting documentation current
• Apply the KX modifier when required and supported
• Watch claims approaching the medical-review threshold

That gives the practice a much clearer way to manage higher-cost therapy cases.

What Other Medicare Rules Can Change PT Reimbursement?

The CPT code is only one piece of the final payment.

Watch the Multiple Procedure Payment Reduction

Medicare uses Multiple Procedure Payment Reduction, MPPR to cut the payment, for the practice‑expense portion of therapy services that Medicare covers on the day.

For 2026, CMS maintains a 50% reduction for the practice-expense portion of the second and subsequent applicable therapy services. The service with the highest practice-expense RVU receives 100% of the applicable practice-expense component, while subsequent applicable services receive the reduction.

This is one reason a practice shouldn’t calculate expected reimbursement by simply adding the individual expected amounts for every CPT code on the claim.

Check PTA-Related Modifiers

CMS also has payment rules for certain services furnished in whole or in part by physical therapist assistants.

The CQ modifier shows that certain PT services were given either partly by a PTA when the CMS rules are followed. For these services that meet the requirements Medicare pays 85% of the Physician Fee Schedule amount.

The billing workflow therefore needs to capture more than the CPT code. Who performed the service can affect the claim too.

What Should You Check When a PT Claim Denies?

When you face denial that doesn’t always mean there is a wrong CPT code that has caused the denial, start with the claim and work backward. 

If the Payer Rejects the CPT Code

Review:

• CPT selection
• Modifier use
• Units
• Diagnosis linkage
• Payer-specific edits

Sometimes the issue is clear, also the CPT code itself is correct but the mix of code, modifier, units or diagnosis causes a payer edit.

If the Payer Questions Medical Necessity

Review:

• Treatment goals
• Functional limitations
• Plan of care
• Clinical findings
• Treatment progression
• Supporting documentation

The question is whether the record explains why the service was provided and why continued treatment was reasonable for the patient.

If the Payer Denies for Authorization

Check:

• Authorization number
• Approved visits
• Authorized dates
• Authorized services
• Payer requirements

An authorization issue can be particularly frustrating because the treatment may have been clinically appropriate, yet the claim can still fail if the administrative requirements weren’t met.

If the Claim Pays Less Than Expected

Don’t automatically write off the difference.

Compare the payment against:

• Contracted rate
• Expected allowable
• CPT code
• Units
• Modifier
• Payer adjustment
• Patient responsibility

A claim can show as “paid” and still contain an underpayment. Without comparing the actual reimbursement with the expected amount, those dollars can easily disappear into routine payment posting.

What Did the Change Healthcare Cyberattack Show About Medical Billing?

The 2024 Change Healthcare cyberattack showed how quickly a disruption in healthcare transaction infrastructure can affect provider cash flow.

Following the February 2024 incident, CMS reported that some providers experienced problems submitting claims and receiving payments through affected systems. CMS responded with accelerated and advanced payment options for eligible providers and suppliers facing the disruption.

For physical therapy practices, there is a broader RCM lesson here.

Submitting a claim is only one step.

A practice also needs to know what happens after that claim leaves its billing system.

A stronger PT billing dashboard can track:

• Claims submitted
• Claims accepted
• Claims denied
• Claims awaiting payment
• A/R by age
• Payment variance
• Underpayments
• Appeals
• Outstanding authorizations

That kind of visibility makes it easier to spot a problem while there is still time to act.

When Should a Physical Therapy Practice Consider Outside Billing Support?

A practice may reach a point where its internal staff simply cannot keep up with the billing workload.

The warning signs usually show up in the numbers first:

• CPT coding backlogs
• Repeated unit-related denials
• Growing A/R
• Unresolved payer balances
• Payments that don’t match contracted rates
• Missed authorization requirements
• Limited time for denial follow-up
• No consistent process for identifying underpayments

At that stage, adding another task to an already busy front-office team may not solve the underlying problem.

A dedicated billing partner can take ownership of coding review, claim follow-up, A/R, payment analysis, and other revenue-cycle work while the practice team stays focused on patient care and daily operations.

How Can Oregon Billing Service Help With PT Coding and RCM?

Oregon Billing Service provides dedicated coding and billing support for healthcare practices that want tighter control over claims, A/R, and reimbursement.

Our dedicated team can help review CPT coding, identify documentation-related concerns, monitor claim problems, follow up on outstanding A/R, and investigate payment variances.

Go Beyond Claim Submission

A clean claim doesn’t automatically mean a correctly paid claim.

That’s why our team can also support underpayment detection by comparing payer reimbursement with the amount the practice expected to receive. When those numbers don’t match, the difference can be investigated instead of being quietly written off.

For a busy physical therapy practice, that extra review can make a meaningful difference over time.

Keep Pricing Connected to Performance

Oregon Billing Service also offers performance-based pricing, giving practices an option to connect billing costs with measurable revenue-cycle performance.

If your physical therapy practice is dealing with recurring coding issues, aging A/R, or payment discrepancies that never seem to get resolved, dedicated billing support can help create a more consistent process from documentation through final payment.

Frequently Asked Questions

What is the CPT code for physical therapy?

There is no single CPT code for every physical therapy service. Common codes include 97161–97163 for PT evaluations, 97164 for re-evaluation, 97110 for therapeutic exercise, and 97530 for therapeutic activities.

What is the therapeutic exercise CPT code?

97110 is the CPT code commonly used for therapeutic exercise services.

What is the therapeutic activity CPT code?

97530 is the CPT code commonly used for therapeutic activities.

How many units can a physical therapist bill?

For Medicare timed services, the 8-minute rule determines the number of billable units based on total timed treatment minutes. For example, 38–52 total timed minutes supports three units.

Does Medicare have a physical therapy cap in 2026?

Medicare no longer uses the old annual outpatient therapy payment cap. For 2026, the PT/SLP KX threshold is $2,480, while CMS maintains a $3,000 targeted medical review threshold.

Conclusion

Getting the right CPT code is only the starting point for clean physical therapy billing. The treatment documented, billing units, modifiers, authorization, and payer rules all need to line up with the claim.

A quick review before submission can help catch coding errors, avoidable denials, and payment discrepancies. When those tasks become difficult to keep up with, the right billing support can help your practice stay on top of claims, A/R, and reimbursement without adding more work to your clinical team