Occupational Therapy CPT Codes: Complete Guide for Providers

Occupational therapy CPT codes help healthcare providers report evaluations, therapeutic activities, self-care training, and other skilled rehabilitation services. However, selecting the wrong code, calculating treatment units incorrectly, or overlooking Medicare modifiers can create claim denials and payment delays.

Some of the common CPT codes used in occupational therapy are CPT 97165 – 97168 for evaluation, CPT 97110 for therapeutic exercises, CPT 97530 for therapeutic activity and CPT 97535 for self-care training. Every code mentioned above is distinct from each other in terms of description and coding requirements as well.

This guide highlights common occupational therapy CPT codes for 2026, helps choose proper codes, and provides practical examples of coding procedures..

What Are Occupational Therapy CPT Codes?

Occupational Therapy CPT Codes are the procedure codes made up of five numbers indicating the specialized services provided by the occupational therapists. The health care professionals make use of the codes to indicate the procedures and evaluation to the insurer during claim processing.

The Current Procedural Terminology (CPT) code system is updated and revised by the American Medical Association and American Occupational Therapy Association (AOTA) offers CPT codes for occupational therapists.

There are typically three elements to the process of billing for occupational therapy services:

• CPT codes: Codes that indicate the procedure or treatment performed.
• ICD-10-CM codes: Codes that indicate the diagnosis or disease causing the need for the treatment.
• Modifiers: Codes that provide additional information about the claim such as the kind of therapy and the qualifications of occupational therapy assistants in the case of occupational therapy.

The CPT code should indicate the procedure rather than the diagnosis of the client. For instance, two clients receiving occupational therapy after a stroke can be provided with different treatments.

Common Occupational Therapy CPT Codes and Descriptions

Occupational therapists use various codes for evaluation, treatment, functional tasks, and specific procedures.

The below table illustrates some billing codes used in occupational therapy practice.

Notable: Service codes are abbreviations of service descriptions in this table. This is based on the 2026 reference by AOTA. Possession of a certain code doesn’t automatically mean that there will be coverage or payment for the service rendered.

Occupational Therapy Evaluation CPT Codes (97165–97168)

Evaluation of the client’s ability to perform functional tasks, health history, occupational performance, and need for rehabilitation is used in the development of occupational therapy treatment plans.

There are four CPT codes that can be used for the evaluation and reevaluation of clients in occupational therapy. The selection of these codes depends upon clinical decision-making and documentation.

CPT 97165: Low-Complexity Occupational Therapy Evaluation

97165 is the coding for Occupational Therapy Evaluation of Simple Complexity.

In this scenario, the therapist performs the Occupational Assessment, takes into account the history, identifies one to two Performance Deficits, and makes clinical decisions that are simple.

For instance, there is a client who has recently recovered from a simple injury of the wrist joint, and he is having difficulties in holding things in his hand at home. The therapist evaluates hand function and performance here.

CPT code 97165 can be used by the therapist if all the above-mentioned elements of the evaluation fit Simple Complexity criteria.

CPT 97166: Moderate-Complexity Occupational Therapy Evaluation

The code CPT 97166 entails a more complicated assessment, which calls for a more detailed history, a more thorough clinical assessment, and evaluation of several intervention strategies.

Assessments of moderate complexity normally diagnose three to five areas of performance problems and can be affected by medical conditions impacting on occupational performance.

For example, a stroke survivor has poor coordination of upper extremities, difficulties in dressing up, poor balance, and trouble doing housework.

Several assessments are done, and an intervention strategy is devised based on the numerous functional limitations.

This will be determined from the assessment components documented.

CPT 97167: High-Complexity Occupational Therapy Evaluation

Code 97167 is applied when the evaluation process involves extensive clinical evaluation, extensive decision-making and extensive factor analysis regarding performance.

Complex evaluations involve at least five areas of performance deficiency and complex clinical decision-making.

For instance: The client suffering from a neurologic condition and having multiple functional deficiencies requires extensive evaluation, extensive assistance in the evaluation process and personalized treatment approach.

The clinician is required to document the complexity involved in the evaluation process and decision making and not apply the highest level of the code since the patient has multiple diagnoses.

CPT 97168: Occupational Therapy Re-Evaluation

CPT 97168 identifies a medically necessary re-evaluation under an established, ongoing occupational therapy plan of care.

A re-evaluation may become appropriate when:

• The patient’s functional status changes significantly.
• New clinical findings require reassessment.
• The therapist needs to substantially revise the treatment plan.
• An unexpected change in condition requires additional clinical evaluation.

Routine progress notes, regular treatment adjustments, and ordinary reassessments do not automatically qualify for CPT 97168.

Comparison of Occupational Therapy Evaluation Codes

Significantly: Codes for evaluation procedures have no time limit. Even though typical face-to-face times for CPT descriptions are provided, just the minutes do not constitute the complexity. The therapist needs to fulfill the requirements of the evaluation codes.

Most Frequently Used Occupational Therapy Treatment CPT Codes

Occupational therapists use treatment CPT codes based on their skilled treatments after evaluating patients.

Here are some CPT codes which usually occur in occupational therapy treatment plans.

CPT 97110: Therapeutic Exercises

Therapeutic exercises using CPT 97110 include any kind of physical activities designed to increase the physical function of muscles in terms of strength, endurance, flexibility, and range of motion.

An occupational therapist can utilize CPT 97110 when conducting:

• Upper extremity strengthening exercise
• Range of motion exercise
• Therapeutic resistance exercise
• Exercise for overcoming movement limitations

Example of documentation: An occupational therapist assists a client in carrying out certain activities for the hands and wrists following an injury to increase strength and flexibility.

CPT 97530: Therapeutic Activities

Code CPT 97530 is used when direct treatment activities are provided that are one-to-one in nature using dynamic activities aimed at improving the functional ability of the patient.

Such activities may include the use of movement exercises that facilitate the performance of daily living activities by the patient.

Some examples of such movement activities would include activities like reaching for objects at various levels or handling household objects and performing functional activities.

Example: The patient who had shoulder surgery practices reaching out and placing objects on shelves as part of his household activity.

CPT 97535: Self-Care and Home Management Training

CPT 97535 identifies skilled instruction that helps patients perform personal care and household activities.

Common interventions include:

• Dressing and grooming techniques.
• Adaptive bathing routines.
• Meal preparation training.
• Safe household task performance.
• Instruction in adaptive equipment.
• Compensatory strategies for daily activities.

Clinical example: An occupational therapist teaches a patient with limited hand mobility how to use adaptive utensils during meals.

The documentation should describe the patient’s limitations, training provided, therapist assistance, and progress toward independent functioning.

CPT 97112: Neuromuscular Reeducation

CPT 97112 covers skilled intervention for movement, coordination, balance, proprioception, and neuromuscular control.

For example: A patient with neurological trauma is learning to make coordinated movements using the upper limbs with the help of a skilled therapist.

It must be remembered that CPT 97112 addresses neuromuscular reeducation only and not exercise of movements.

CPT 97140: Manual Therapy

Code CPT 97140 covers manual therapy modalities that qualify, such as joint mobilization and some soft tissue techniques.

Case example: The therapist uses skilled joint mobilization as part of an established plan of care to help with limited mobility.

The documentation should state what technique was performed, where, how long for, and why.

CPT 97533: Sensory Integration Techniques

Code CPT 97533 provides for sensory integration intervention for the purpose of addressing sensory processing difficulties.

OTs may utilize sensory integration intervention on individuals who have sensory processing difficulties affecting their engagement in ADLs.

E.g., the therapist presents personalized sensory challenges that facilitate proper response to functional activities.

Coverage for sensory integration varies depending on payer. This must be established before any intervention is carried out.

CPT 97110 vs. 97530 vs. 97535: How Do You Choose the Correct Code?

One of the most important occupational therapy coding decisions involves distinguishing therapeutic exercises, therapeutic activities, and self-care training.

All three services can support functional recovery. However, they describe different types of skilled interventions.

CPT Code	Primary Focus	Practical Example
97110	Strength, flexibility, endurance, or range of motion	Structured wrist-strengthening exercises
97530	Dynamic activities improving functional performance	Reaching for and moving household objects
97535	Self-care and home management	Training a patient to dress using adaptive techniques

Consider a patient who has difficulty using the right hand after an injury.

During one appointment, the therapist might provide:

Therapeutic exercise (97110): Exercises aimed at increasing hand strength through grip-strengthening exercises under guidance.

Therapeutic activities (97530): Functional manipulation of various objects with different sizes to increase hand coordination.

Self-care training (97535): Instruction in using adaptive clothing fasteners during dressing.

The patient gets three different kinds of services. But the therapist can bill for only those services that qualify, depending on the treatment, documentation, timing, and the billing guidelines.

The main point to be noted here is that what needs to be considered is the use of the service and not necessarily the tool used.

For example, the use of resistance bands does not necessarily mean the use of 97110, and the use of a domestic tool does not necessarily mean 97530.

Additional Occupational Therapy CPT Codes for Specialized Services

Not all occupational therapy sessions will be limited to regular therapeutic exercises and personal care training.

Cognitive Function Interventions: CPT 97129 and +97130

Coding for 97129 and +97130 are skillful interventions that target cognitive skills like attention, memory, planning, organization, and problem-solving skills.

Code 97129 is for the first 15 minutes intervention performed on the patient’s cognitive issues, while +97130 is for subsequent interventions done in 15-minute increments.

Therapists may help patients develop cognitive skills like organizing activities, scheduling, and compensation of memory skills following brain injury.

Wheelchair Management: CPT 97542

Code 97542 deals with assessing the patient’s wheelchair use.

It can also be applied by therapists who conduct skillful interventions with respect to the use of the wheelchair.

Documentation should cover the needs of the patient, intervention through equipment, and results of therapy.

Assistive Technology Assessment: CPT 97755

“Procedure code CPT 97755 meets the criteria of an assistive technology evaluation with a written report.”

The technology to be evaluated may be that which assists the patient to compensate for functional deficits or gain independence.

It should be noted that the criteria must be met by the evaluation performed.

Orthotic Management: CPT 97760 and 97763

Description of CPT 97760: Initial Orthotic Management and Training. Whereas CPT 97763 is for Subsequent Orthotic Management or Training if it satisfies certain conditions.

It is the duty of the therapist to distinguish between the two codes and to explain what an orthotic device is all about and also its management and functional needs of the patient.

Caregiver Training: CPT 97550, +97551, and 97552

Caregiver training deserves attention because it may help families support a patient’s functional performance at home.

Code	Service
97550	Individual caregiver training, initial 30 minutes
+97551	Each additional 15 minutes
97552	Group caregiver training, untimed

These codes describe qualifying training provided without the patient present. They carry specific reporting requirements and payer coverage considerations.

Example includes the provision by the therapists on how to safely move or assist a client in the performance of their daily activities to the family caregivers.

The next step would be to determine if the insurance provider covers the particular caregiver training services before submitting the bill.

Timed vs. Untimed Occupational Therapy CPT Codes

Occupational therapy billing includes timed and untimed procedures. Understanding the distinction helps practices avoid incorrect units.

Timed CPT Codes

Timed codes generally represent services billed in defined treatment intervals, commonly 15 minutes.

Examples include 97110, 97112, 97530, and 97535.

For services requiring direct one-on-one contact, only qualifying skilled treatment minutes count toward billable time.

Untimed CPT Codes

Untimed codes generally represent a service rather than repeated 15-minute units.

Examples include OT evaluation codes 97165–97168 and group therapy code 97150.

A therapist cannot multiply the units of an untimed evaluation simply because the appointment lasted longer.

Billing tip: Record total treatment time and the minutes attributable to each timed service separately. This makes unit calculations easier to verify before claim submission.

How Does Medicare’s 8-Minute Rule Work for Occupational Therapy?

Medicare’s 8-minute rule determines the number of billable units for applicable 15-minute timed therapy services.

Rather than automatically billing one unit for every 15 minutes on the appointment schedule, providers calculate qualifying timed treatment minutes for the date of service and therapy discipline.

Medicare 8-Minute Rule Chart

Total Timed Treatment Minutes	Billable Units
0–7	0
8–22	1
23–37	2
38–52	3
53–67	4
68–82	5
83–97	6
98–112	7

Example 1: One Occupational Therapy Procedure

A therapist provides 22 minutes of qualifying therapeutic exercises under CPT 97110.

The treatment qualifies for one billable unit under Medicare’s timed-code methodology.

If the therapist instead provides 23 qualifying minutes, the total reaches the range for two units.

Example 2: Multiple Occupational Therapy Procedures

Consider a treatment session that includes:

Service	Treatment Minutes	Units
97110 — Therapeutic exercises	20	1
97535 — Self-care training	20	2
Total	40	3

The therapist provides 40 total timed treatment minutes, which supports three units under the Medicare methodology.

Each service contributes one complete 15-minute block. The remaining five minutes from each service are compared when assigning the additional unit. In this equal-remainder example, either service may receive the additional unit when the applicable allocation guidance permits it.

The table assigns the third unit to 97535 only to illustrate one valid allocation.

Common 8-Minute Rule Mistakes

Billing teams should watch for several recurring problems:

• Counting appointment time instead of qualifying treatment minutes.
• Including nonbillable breaks or unrelated administrative activities.
• Billing the same treatment minutes under multiple CPT codes.
• Assigning too many units to an individual procedure.
• Applying Medicare’s methodology automatically to commercial payers with different billing rules.

Important: Medicare’s 8-minute rule does not automatically govern every commercial insurance plan. Check each payer’s requirements before submitting timed treatment claims.

Occupational Therapy Billing Modifiers and Medicare Guidelines

Modifiers communicate information that may affect claim processing, reimbursement, or therapy reporting.

For Medicare outpatient occupational therapy, correct modifier selection is especially important.

Modifier	Purpose
GO	Identifies services furnished under an occupational therapy plan of care
CO	Identifies qualifying services furnished in whole or in part by an occupational therapy assistant
KX	Attests that therapy services exceeding the applicable threshold remain medically necessary and meet applicable requirements
59	Identifies a distinct procedural service when the requirements for separate reporting are met
XE, XS, XP, XU	More specific distinct-service modifiers, when appropriate under payer rules

GO Modifier for Occupational Therapy

The GO modifier identifies outpatient occupational therapy services furnished under an occupational therapy plan of care.

For example, a Medicare claim reporting qualifying occupational therapy treatment under CPT 97530 generally requires the GO modifier.

Missing or incorrect therapy modifiers can create claim-processing problems.

CO Modifier for Occupational Therapy Assistants

The CO modifier identifies services involving an occupational therapy assistant when Medicare’s applicable participation threshold is met.

The general de minimis standard concerns assistant involvement exceeding 10% of a service, with additional rules for individual timed units and certain multi-unit situations.

Medicare generally applies a 15% payment reduction to the relevant payment amount for services billed with the CO modifier.

Therefore, practices should document practitioner involvement accurately rather than automatically apply CO to every treatment involving an OTA.

KX Modifier and the 2026 Medicare Therapy Threshold

The Centers for Medicare & Medicaid Services (CMS) established a $2,480 KX modifier threshold for occupational therapy services in calendar year 2026.

When applicable occupational therapy spending exceeds this threshold, the provider must meet the requirements for continued medically necessary treatment and apply the KX modifier appropriately.

CMS also maintains a $3,000 targeted medical review threshold for occupational therapy.

These amounts serve different purposes:

Neither amount represents an automatic annual limit on medically necessary occupational therapy.

CMS continues to examine documentation and medical necessity. In April 2026, CMS also listed therapy claims billed with KX as an approved recovery-audit review topic.

For that reason, therapy providers should maintain clear records supporting continued treatment after the applicable threshold.

Modifier 59 and NCCI Edits

Some therapy procedures may encounter National Correct Coding Initiative (NCCI) edits.

Modifier 59, or an appropriate X modifier, may support separate reporting when a service genuinely meets the applicable distinct-procedural-service requirements.

However, different CPT codes or separate note entries do not automatically justify modifier 59.

Billing teams should review the current NCCI edits, confirm whether modifier-based unbundling is permitted, and document the circumstances supporting distinct services.

Documentation Requirements for Occupational Therapy CPT Codes

Accurate CPT coding begins with clear clinical documentation.

The patient’s medical record should explain why skilled occupational therapy was necessary, what the therapist performed, and how the intervention addressed the patient’s functional limitations.

Occupational Therapy Evaluation

The initial evaluation should establish the foundation for treatment.

Document the occupational profile, relevant medical history, performance deficits, assessment results, clinical reasoning, functional limitations, and treatment recommendations.

Individualized Treatment Plan

The plan of care should identify measurable goals and the intended skilled interventions.

For example, rather than stating only “improve hand function,” the plan could identify the patient’s difficulty handling clothing fasteners and establish a measurable dressing-related goal.

The treatment plan should also meet applicable certification, frequency, duration, and payer requirements.

Daily Treatment Notes

Each treatment note should identify the skilled procedures provided, patient response, and relevant treatment details.

For timed procedures, record the qualifying treatment minutes and enough information to support the reported CPT units.

Progress Reports

For applicable Medicare outpatient therapy services, progress documentation must meet the relevant reporting schedule and demonstrate the patient’s progress or continuing skilled treatment needs.

Medicare guidance generally requires clinician progress reports at least every 10 treatment days, subject to applicable requirements.

The therapist should relate progress findings to the treatment plan rather than document activities without explaining their clinical significance.

Medical Necessity

Medical necessity remains essential even when a procedure code and unit count are technically correct.

Documentation should demonstrate why the patient required skilled occupational therapy rather than an unskilled activity or an independent exercise routine.

Example of Weak vs. Stronger Documentation

Weak documentation:

“The patient completed hand exercises and dressing activities for 30 minutes.”

This statement provides limited information about the skilled interventions, treatment objectives, and allocation of time.

Stronger documentation example:

“Provided 15 minutes of individualized resisted wrist-extension exercises with graded resistance and therapist-guided technique correction to address reduced grip-related functional strength. Provided 15 minutes of adaptive dressing training, including instruction and repeated practice with a button hook. Patient progressed from moderate verbal cueing to minimal cueing during the practiced task.”

The second example identifies distinct skilled interventions, their durations, and the patient’s performance.

It does not by itself establish coverage. The complete medical record must still support the codes, medical necessity, and applicable payer requirements.

Common Occupational Therapy Coding and Billing Errors

Even experienced billing teams can encounter difficulties when therapy claims involve multiple procedures, complex documentation, and changing payer requirements.

Selecting Evaluation Codes Based on Appointment Length

A lengthy evaluation does not automatically justify CPT 97167.

The therapist must document the required evaluation complexity, assessments, and clinical decision-making.

Prevention: Compare evaluation documentation with all components of the applicable CPT descriptor before assigning the code.

Confusing Therapeutic Exercises With Functional Activities

CPT 97110 and 97530 may involve similar equipment or movements, but their coding purposes differ.

Prevention: Document the intervention’s clinical objective and the skilled treatment actually provided.

Reporting Incorrect Timed Units

Incorrectly combining procedure times or counting nonbillable minutes can produce unsupported units.

Prevention: Review minutes by procedure and validate the total against the payer’s timed-unit methodology.

Missing or Misusing Therapy Modifiers

Claims may require GO, CO, KX, or other modifiers depending on the service and circumstances.

Prevention: Configure billing-system checks for modifier requirements while allowing staff to review exceptions.

Insufficient Medical Necessity Documentation

Insurance reviewers may question services when treatment notes do not establish functional deficits, skilled intervention, or ongoing need.

Prevention: Connect treatment activities to documented functional goals, patient responses, and measurable findings.

Overlooking Payer-Specific Coverage Rules

An occupational therapy CPT code may be valid but not covered under a particular plan or clinical circumstance.

Prevention: Verify coverage, authorization requirements, visit restrictions, and payer policies before billing.

How to Improve Occupational Therapy Billing Accuracy

Therapy practices can strengthen their billing workflows by connecting clinical documentation with claim review.

Start with accurate intake and eligibility checks. Confirm the patient’s coverage, benefits, therapy authorization requirements, and network status before treatment.

Next, review coding and documentation together. Make sure the CPT code reflects the actual skilled procedure and that treatment notes support the submitted units.

Then, verify modifiers and payer rules. Confirm the applicable GO, CO, KX, or distinct-procedural-service reporting requirements.

Before submitting claims, validate patient information, diagnosis-code relationships, treatment dates, practitioner details, and authorization data.

Finally, monitor claim denials and payment discrepancies. Identify recurring coding or documentation problems and share those findings with the therapy and billing teams.

This coordinated process can help practices reduce preventable claim errors and improve consistency throughout the revenue cycle.

Need Help With Occupational Therapy Coding and Billing in Tennessee?

Incorrect CPT codes, missing modifiers, and treatment unit errors can lead to claim denials and delayed reimbursements for occupational therapy practices.

Tennessee Billing helps occupational therapy providers across Tennessee manage medical coding, claim submissions, denial resolution, and insurance follow-ups. Our billing support helps your practice reduce administrative work, improve claim accuracy, and maintain a healthier revenue cycle.

Frequently Asked Questions

What are the most common CPT codes for occupational therapy?

Frequently used occupational therapy codes include 97165–97168 for evaluations, 97110 for therapeutic exercises, 97112 for neuromuscular reeducation, 97530 for therapeutic activities, and 97535 for self-care training. The appropriate code depends on the skilled service provided.

What is the difference between CPT 97530 and 97535?

CPT 97530 identifies qualifying therapeutic activities intended to improve functional performance. CPT 97535 identifies skilled self-care and home management training, such as adaptive dressing instruction and household task training.

What is CPT code 97165 used for?

CPT 97165 identifies a low-complexity occupational therapy evaluation. The therapist must document the required occupational profile, performance deficits, and straightforward clinical decision-making.

Does Medicare use the 8-minute rule for occupational therapy?

Yes. Medicare applies the 8-minute rule to applicable 15-minute timed occupational therapy services. The number of qualifying treatment minutes determines the total billable units, with additional rules governing unit allocation across procedures.

Can occupational therapists bill CPT 97110 and 97530 together?

They may report both when they provide separately identifiable, medically necessary services that meet the applicable coding, timing, documentation, and NCCI requirements. Providers must not bill the same treatment minutes twice.

What is the GO modifier in occupational therapy billing?

The GO modifier identifies outpatient occupational therapy services furnished under an occupational therapy plan of care. It is commonly required on applicable Medicare occupational therapy claims.

What is the Medicare KX modifier threshold for occupational therapy in 2026?

The 2026 Medicare KX modifier threshold for occupational therapy is $2,480. Continued medically necessary services may remain payable beyond that amount when the applicable requirements are satisfied.

Conclusion

Accurate occupational therapy CPT coding requires more than selecting a procedure number from a list. Therapists and billing professionals must understand the intervention performed, the patient’s functional needs, timed-unit requirements, documentation standards, and applicable payer policies.

Codes such as 97165–97168, 97110, 97530, and 97535 cover frequently provided occupational therapy services, but their appropriate use depends on the clinical record.

By reviewing code selection, documenting skilled treatment, applying modifiers correctly, and monitoring billing errors, occupational therapy practices can support more accurate claims and reduce avoidable revenue cycle problems.