CPT Code for Therapeutic Exercise: 97110 Physical Therapy Billing Guide

Therapeutic exercise is a common part of physical therapy, but getting paid for these services requires more than selecting a familiar CPT code. Providers and billing teams must match the service performed with the correct code, document the treatment clearly, calculate timed units correctly, and follow payer-specific billing requirements.

Therapeutic exercise CPT Code Therapeutic exercise encompasses a time-based activity provided by a health care professional who has the credentials, to improve function, strength, range of motion, endurance and/or other impairments. CPT code 97110 For physical therapy practices, understanding this code can help prevent unnecessary claim errors and receive payment.

In this tutorial, we will discuss CPT 97110, the use of this code in physical therapy, billing guidelines, timed units, documentation guidelines, common errors, and reimbursement issues.

What Is the CPT Code for Therapeutic Exercise?

CPT 97110 is used to record therapeutic exercise to improve strength, endurance, range of motion and flexibility. It is typically linked to physical therapy treatments. It is recorded as a timed code.

The code may apply when a therapist conducts structured exercises based on the patient’s limitations as indicated in the patient’s record and treatment plan. The medical record should specify the need for the exercises, what was completed and how the treatment corresponds to the patient’s functional goals.

Since 97110 is a timed service, the number of units reported is based on the entire billable time for the treatment and any payer rules that apply. Under Medicare’s outpatient therapy billing methodology, timed services are calculated using total timed treatment minutes for the discipline on that date of service.

CPT 97110 at a Glance

Coverage and reimbursement restrictions may vary by payer and practices should verify the appropriate policy before to filing claims.

When Should Physical Therapists Use CPT 97110?

CPT 97110 may be applicable if the primary service rendered is therapeutic exercise and the patient’s condition and plan of care support the treatment.

Examples can include exercises designed to improve:

• Muscle strength
• Flexibility
• Range of motion
• Physical endurance
• Coordination related to functional limitations
• Movement patterns affected by injury or illness
• Physical performance needed for documented functional goals

The exercises should be connected to the patient’s clinical needs rather than simply recorded as general activity.

For example, a patient suffering from a lower extremity injury may complete therapeutic exercises to regain strength and range of motion for walking. Other patients may need workouts for increased functional tolerance after surgery.

The treatment note should establish this connection. Simply documenting that a patient “performed exercises” may not provide enough detail to support the billed service.

CPT 97110 Billing Guidelines for Physical Therapy

To properly charge CPT 97110, start by matching up the service written in the documentation to the code, then determine the correct units.

Because 97110 is a timed CPT code, providers should maintain clear records of the time spent delivering the service.  For timed therapy services, the number of units that can be reported is based on the total timed treatment minutes for the day, according to CMS guidance.

For Medicare outpatient therapy, the commonly used timed-unit ranges are:

The calculation becomes more important when multiple timed procedures are performed during the same visit. The total timed minutes are considered before allocating the billable units among the individual services.

These ranges reflect Medicare methodology and should not automatically be applied to every commercial payer. Always review the applicable payer policy and contract requirements.

How the 8-Minute Rule Applies to CPT 97110

Physical therapy billing really requires you to know the CPT 97110 8-minute rule.

Medicare’s time-based coding generally requires that a timed session be 8 minutes or more to generate a bill for a single 15-minute unit of time, if the overall duration of the session supports billing that unit. CMS gives examples of how 8 to 22 minutes total timed treatment can contribute to one unit.

Consider a simple example:

10 minutes of therapeutic exercise using CPT 97110

The total timed treatment is 10 minutes, which falls within the 8–22-minute range. Under the Medicare methodology, this supports one timed unit.

The calculation is different when more than one timed service is offered in the same session. For example if a therapist performs 20 minutes of therapeutic exercise and then 13 minutes of another scheduled session, the total is 33 minutes. That total supports two timed units, which must then be allocated appropriately between the services based on the documented time.

The important point is that practices should not calculate each timed code in isolation when multiple timed services are performed on the same date.

CPT 97110 Units and Timed Billing

Determining CPT 97110 units requires accurate treatment-time documentation.

Suppose a physical therapist documents:

• 25 minutes of therapeutic exercise
• 8 minutes of another timed therapy service

The total timed treatment is 33 minutes, which supports two units under the Medicare timed-code schedule. CMS guidance indicates that the units should then be allocated according to the time spent on each service. In this example, the therapeutic exercise has one complete 15-minute block plus 10 additional minutes, so it receives the additional unit.

Another example is:

• 18 minutes of therapeutic exercise
• 13 minutes of manual therapy
• 10 minutes of gait training
• 8 minutes of ultrasound

The total is 49 timed minutes, which supports three units. CMS guidance uses this type of example to demonstrate that the available units are allocated to the services based on their documented treatment time rather than simply billing one unit for every procedure performed.

This is why accurate time tracking is essential for therapeutic exercise physical therapy billing.

CPT 97110 Documentation Requirements

Strong documentation is key to appropriate physical therapy billing.

The record needs to support the medical necessity for the service and describe what the therapist really provided. Depending on payer requirements and the circumstances of treatment, useful documentation may include:

• Patient diagnosis and relevant impairments
• Functional limitations
• Treatment goals
• Specific exercises performed
• Treatment duration
• Number of repetitions or sets when clinically relevant
• Resistance or progression when applicable
• Patient response to treatment
• Changes in functional status
• Therapist assessment
• Plan for continued treatment

Documentation should demonstrate that the service was skilled and connected to the patient’s treatment plan.

For example, a note that says only “therapeutic exercise done for 20 minutes” does not convey any clinical information. A better record includes the exercises performed, the reason for the intervention, the patient’s response, and how the intervention relates to recorded functional goals.

Clear records also help a medical coding services team determine whether the billed code is supported by the provider’s documentation. particularly when different CPT codes must be matched to the services documented. The Virginia Billing Service website notes that its coding services cover CPT coding for procedures and emphasize documentation supporting reimbursement claims.

Common CPT 97110 Billing Mistakes

Even when the correct code is selected, errors can occur during charge entry, unit calculation, documentation review, or claim submission.

Common mistakes include:

Reporting Unsupported Units

Billing more units than the documented treatment time supports can result in claim problems. Timed services should be calculated using the applicable payer’s methodology.

Incomplete Treatment-Time Documentation

If the record does not clearly support the billed time, the payer may question the claim. Treatment notes should contain sufficient information to establish the service duration.

Weak Medical Necessity Documentation

The exercises should relate to documented impairments and functional goals. Generic descriptions may make it difficult to establish why the service was necessary.

Applying Medicare Rules to Every Payer

The “Medicare 8-minute rule” is an important consideration but commercial insurance companies may have their own criteria. Billing teams should not assume all insurers follow the same guidelines but rather look to specific payer regulations.

Ignoring Payer-Specific Modifiers

Some therapy claims require specific modifiers depending on who furnished the service and the payer’s requirements. For example, CMS has specific rules involving CQ/CO modifiers for services furnished in whole or in part by PTAs or OTAs.

CPT 97110 Modifiers and Physical Therapy Claims

Modifiers provide additional information about how a service was performed or billed. They should only be reported when supported by the circumstances of the service and the applicable payer rules.

For Medicare therapy claims, CMS has specific requirements regarding the CQ modifier when applicable services are furnished by a physical therapist assistant. Providers can review the CMS therapy services guidance for current requirements and billing examples.

Modifier selection should be based on the provider, service, payer, and circumstances indicated in the record.

Improper modifier use may lead to claim modifications, denials or delayed payment. Claim screening before submission is a must-have in a meticulous medical billing services workflow to catch these errors.

CPT 97110 Reimbursement Considerations

Reimbursement for CPT 97110 varies based on the patient’s insurance plan, whether the provider participates in the plan, the diagnosis, authorization criteria, verified medical necessity, quantity of units, and the payer’s fee structure.

For Medicare patients, providers should also review Medicare physical therapy services to understand applicable coverage and medical-necessity requirements.

There is no one reimbursement figure that applies to all physical therapy practices.

Billing teams should verify patient eligibility and whether the plan requires prior authorization, referral, visit restrictions or other criteria before therapy is rendered. The claim should then reflect the services actually provided and supported by the medical record.

If a claim is denied, don’t just resubmit the same information. Review the rationale for the decision. The root cause could be a coding, authorization, eligibility, documentation, modifier usage or other payer requirement.

A structured denial management strategy helps identify reoccurring difficulties and prevent the same billing issue from impacting future claims. Virginia Billing Service characterizes its denial management process as including root cause investigation, claim rework and appeals as required.

How Physical Therapy Practices Can Improve 97110 Claim Accuracy

Improving physical therapy coding and billing does not depend on one step. It requires coordination between clinical documentation, coding, charge entry, claim review, and payment follow-up.

A practical workflow can include:

1. Verify patient eligibility and benefits.
2. Confirm authorization requirements when applicable.
3. Review the treatment plan and documented medical necessity.
4. Capture the services provided accurately.
5. Record timed treatment minutes clearly.
6. Assign CPT 97110 when the documented service supports it.
7. Calculate units according to the applicable payer methodology.
8. Review required modifiers and payer-specific edits.
9. Scrub the claim before submission.
10. Monitor payment and investigate denials promptly.

For practices handling a large volume of therapy claims, an organized process can reduce repetitive billing work and make errors easier to identify.

When to Consider Physical Therapy Billing Services

Managing physical therapy claims internally can become difficult when staff must simultaneously handle coding, eligibility, authorizations, claim submission, payment posting, and appeals.

Physical therapy billing services can provide outside support for practices that want to reduce the administrative workload associated with revenue cycle management.

A billing partner may assist with:

• Patient eligibility verification
• Charge entry
• CPT and ICD-10 coding review
• Claim submission
• Claim scrubbing
• Payment posting
• Accounts receivable follow-up
• Denial analysis
• Appeals
• Reporting

Virginia Billing Service offers medical billing and coding support to healthcare practices throughout Virginia including claim filing, coding, denial management, eligibility verification and payment follow-up.

The key issue for a practice looking at physical therapy medical billing services is whether the billing workflow can accurately handle timed therapy services, payer-specific restrictions, documentation needs, and follow up.

Final Thoughts on CPT 97110

Understanding the CPT code for therapeutic exercise is essential for physical therapy practices that want to submit accurate claims. CPT 97110 is a timed code, so proper unit calculation, treatment-time documentation, and payer-specific billing rules all matter.

The 8-minute limit is most pertinent to Medicare outpatient therapy, but commercial payors may have varying criteria. Documentation should also include the relationship of the therapeutic activity to the patient’s condition, functional limits, and treatment goals.

Coding accuracy is just one phase of the revenue cycle. Successful reimbursement requires eligibility verification, authorization checks, claim submission, payment posting and denial follow-up.

When Virginia practices look for the Top medical billing company in Virginia, selecting a billing partner that specializes in coding, claims administration and denial resolution can help ease administrative burdens, freeing up the practice to concentrate on patient care.

Frequently Asked Questions

What is the CPT code for therapeutic exercise?

The CPT code for therapeutic exercise is 97110. It is a timed code used for exercises that improve strength, flexibility, endurance, range of motion, and physical function.

How many units can be billed for CPT 97110?

Units depend on the documented treatment time and payer rules. For Medicare, CPT 97110 follows the applicable timed-service and 8-minute rule methodology.

What documentation is required for CPT 97110?

Documentation should support medical necessity and include the exercises performed, treatment time, patient impairments, functional goals, and response to treatment.

Can CPT 97110 be billed with other therapy codes?

Yes, multiple services can be billed when each service is separately supported by the documentation and payer requirements. However, when multiple timed services are provided, the total treatment minutes may also affect the number of units that can be reported.

Does CPT 97110 follow the 8-minute rule?

For Medicare outpatient therapy, CPT 97110 follows the timed-service methodology commonly called the 8-minute rule. Commercial payers may have different requirements.