Mastering CPT Codes for Occupational Therapy Evaluation and Billing

Working as an occupational therapist or occupational therapy assistant can be incredibly rewarding. Through therapeutic exercises, dynamic activities, and manual therapy techniques, providers can help patients restore functional and cognitive performance, especially when they properly understand codes like the 97167 CPT code.

Many occupational therapists say patient contact is the best part of the job, but very few enjoy figuring out the complex current procedural terminology (CPT) billing codes for occupational therapy. The billing codes for occupational therapy can change at the drop of a hat.

Why is learning accurate CPT codes for occupational therapy so important? The following are a few reasons to study billing codes:

• Your practice relies on using the proper CPT code descriptions to designate services provided, which ensures the insurance company reimburses you accordingly.
• If your office provides Medicaid services, using the right evaluation CPT codes ensures healthcare providers won’t run into trouble with this government program.
• Using the correct procedure codes ensures proper billing for services rendered, which means happier patients overall. This is especially important for private payers.
• Correct codes allow providers to perform a comprehensive assessment of patients and fully understand their medical history.
• Using proper codes for occupational therapy evaluations allows providers to contribute quality healthcare data, which informs sector trends, safety procedures, and adaptive responses.

Understanding Occupational Therapy Billing and CPT Codes

Billing for occupational therapy evaluation, therapeutic exercise, and other services involves submitting accurate CPT codes to insurance companies. It is important to stay updated with the latest codes because they can often change, which means the codes used today aren’t the same codes you may have used five years ago.

Providers must submit the correct occupational therapy evaluation CPT or re-evaluation codes for their occupational therapy services. Failing to do so means insurance companies will not reimburse an occupational therapy practice for its work.

The Impact of Accurate Billing on Occupational Therapy Practices

Accurate billing can promote adaptive responses and ensure insurance companies reimburse occupational therapy providers for their services. These CPT codes can also help practices perform a detailed assessment of environmental demands, work-task analysis, and money management.

Your occupational therapy clinic must use the correct CPT codes for all services involving patient contact, including manual lymphatic drainage, re-evaluation, group therapy, and sensory processing. Billing mistakes commonly lead to claim denials. For instance, if you use the same code for two different physical therapy services, the insurer might deny you for duplicate claims.

Deciphering Common CPT Codes for Occupational Therapy Evaluation and Treatment

CPT codes for occupational therapy treatment options can be confusing, but your practice needs to understand each CPT code well. Common terminology associated with billing includes the following:

Pre-treatment time: including time spent on evaluation and re-evaluation, asking questions, and analyzing results

Intra-treatment time: this includes time spent performing treatments, such as pragmatic functioning therapy and teaching compensatory strategies

Post-treatment time: this includes assessing the client’s response to treatment and communicating with the patient, their family members, and other healthcare providers

Common CPT Codes in Occupational Therapy

The list of CPT codes relevant to occupational therapy is extensive, so it is not possible to go into detail on each one here. Instead, we’ll discuss some of the most common occupational therapy CPT codes, which include:

The American Medical Association has made several changes to CPT codes for 2023. For instance, some of the codes it has deleted include 99241 and 99251 for consultations, CPT code 99318 for nursing facility services, and CPT code 99343 for home or residence services.

The Importance of Evaluation Codes

Selecting the correct CPT code for occupational therapy evaluation depends on the complexity level determined by the patient’s occupational profile. Evaluation codes are categorized into low, moderate, and high complexity. A low-complexity occupational therapy evaluation (CPT code 97165) includes 1–2 performance deficits, while a moderate-complexity occupational therapy evaluation (CPT code 97166) involves 3–5 performance deficits. A high-complexity occupational therapy evaluation (CPT code 97167) covers 5 or more performance deficits. Conducting a thorough occupational profile is critical to assigning the appropriate CPT code for occupational therapy evaluation.

Let’s go over a typical occupational therapy evaluation. Bob hit his head at work, and now he’s feeling dizzy. He’s also suffering from occasional headaches, and he suspects he may have damage to his cognitive function.

After conducting an occupational profile assessment of Bob’s functional performance and medical history, you conclude that this is a moderate complexity evaluation. That’s because you’ve identified three elements during this occupational therapy evaluation:

1. Bob is dizzy.
2. Bob has headaches.
3. Bob isn’t thinking as clearly as he used to.

Navigating Complex Cases in Occupational Therapy Billing

When it comes to occupational therapy CPT codes, not every case is cut and dry. Occupational therapists may perform multiple services in one session, which would require the use of several different occupational therapy CPT codes.

It’s also important to be aware of time-based CPT codes for your treatment options. We’ll discuss these codes in more detail below.

Time-Based Codes and the “Eight-Minute Rule”

There are two types of CPT codes: time-based and service-based. Providers use service-based codes for primary procedure services, such as conducting an occupation-based assessment or re-evaluating a patient’s medical status. Providers can only bill one unit per code.

Time-based codes, on the other hand, allow providers to bill multiple units in 15-minute increments. A time-based CPT code is suitable for procedures requiring constant patient contact, such as therapeutic exercises, ultrasound, sequencing tasks, and executive function compensatory training.

If you accept Medicare, you must understand the eight-minute rule. Per this rule, to bill one unit of a timed CPT code, you must perform a service for at least eight minutes.

Avoiding Common Pitfalls in Occupational Therapy Billing Codes

Insurance companies may deny claims for many reasons. Here are some common problems occupational therapists might run into when using billing codes and how to solve them.

The Role of Documentation in Successful Billing

Without proper documentation for each CPT code, insurance companies can deny claims. For this reason, most providers document patient encounters using the SOAP format, which stands for subjective, objective, assessment, and plan. Let’s go over each step in a bit more detail.

Subjective: Depicts the patient’s statements about their symptoms. This includes how often symptoms occur, their severity, and how long the problem has been happening.

Objective: Refers to measurable, quantifiable information, such as:

• Vital signs
• Imaging diagnostics
• Lab reports
• Physical exam findings

Assessment: Combines information from the subjective and objective stages. Providers use this information to make a diagnosis.

Plan: This stage serves as a conclusion to documentation. It can include:

• Testing to perform, along with next steps, depending on whether results are positive or negative
• How often does the patient need follow-up visits
• Therapy and medications are required

Weave’s Role in Occupational Therapy Practices and Billing

If you need help staying on top of billing for your occupational therapy clinic, we invite you to try Weave! Our software allows you to handle billing with ease, so you can get paid faster. With features like online bill pay, digital forms, and insurance verification, you’ll have more time to focus on the bigger picture (like deciphering that latest CPT code change).

Learn How Weave Helps Occupational Therapists Streamline Therapy Billing

If you hope to succeed in the crowded occupational therapy industry, your practice can’t go without learning and mastering today’s occupational therapy billing codes. Staying on top of the latest CPT codes can be time-consuming, though, especially when you have a busy practice to run.

Weave is your ticket to boosting the efficiency of your practice. Weave offers everything you need to successfully run your office, including online scheduling, practice analytics, appointment reminders, and convenient payment options.

To learn more about how Weave can help your practice with occupational therapy billing, request a free demo of our software now.

Summary of Common CPT Codes for Occupational Therapy

The table below summarizes essential billing codes for occupational therapy evaluation and procedure services across therapy practices:

Article last updated September 8, 2026