In the world of physical therapy and chiropractic care, accurate coding is not just a technical requirement, it is crucial for patient care, insurance reimbursement, and compliance. One of the most commonly used codes in these practices is CPT code 97110. Whether you are a physical therapist, chiropractor, medical biller, or patient, understanding this code is essential for smooth documentation, billing, and treatment planning.
CPT 97110 is used for therapeutic exercises designed to improve strength, flexibility, range of motion, and functional movement. With proper usage, this code ensures that patients receive appropriate care while providers are reimbursed fairly by insurance companies.
In this guide, we will break down everything you need to know about CPT code 97110, including definitions, procedure descriptions, modifiers, billing instructions, reimbursement, and practical examples.
1. What is CPT Code 97110?
CPT 97110 is a medical code used in physical therapy and chiropractic settings to bill for therapeutic exercise sessions. The American Medical Association (AMA) classifies it as a code for therapeutic procedures aimed at improving physical function.
This code is part of the CPT (Current Procedural Terminology) coding system, which standardizes the reporting of medical, surgical, and diagnostic services. The 97110 cpt code definition indicates that it applies specifically to exercises prescribed to improve strength, coordination, balance, and range of motion.
1.1 CPT Code 97110 Definition
CPT 97110 is defined as therapeutic exercises to develop strength, endurance, range of motion, and flexibility. These exercises are typically one-on-one sessions with a licensed physical therapist or a trained professional.
In physical therapy, 97110 cpt code descriptions often include activities such as:
- Stretching exercises
- Resistance band exercises
- Core strengthening routines
- Balance and coordination drills
For those seeking insurance coverage or reimbursement, it’s important to use the 97110 cpt code description of physical therapy accurately in documentation and billing.
2. CPT 97110 Code Description
The CPT code 97110 description refers to the specific therapeutic exercises performed during a patient session. These exercises are prescribed to target deficits in mobility, strength, endurance, or overall functional performance.
Examples of services under CPT 97110:
- A patient recovering from a knee surgery is performing strength and flexibility exercises.
- A patient with chronic lower back pain is doing core stabilization and posture exercises.
- A patient post-stroke performing balance and coordination activities.
2.1 Physical Therapy Applications
CPT 97110 cpt code physical therapy is widely used for:
- Rehabilitation after surgery or injury
- Improving mobility in chronic conditions
- Enhancing muscle strength for daily activities
Physical therapists document the type, duration, and intensity of exercises to justify billing under procedure code 97110. Typically, one unit equals 15 minutes of one-on-one therapeutic exercise.
2.2 Chiropractic Applications
Chiropractors also use 97110, especially when combined with manual therapy or spinal adjustments. However, billing often requires the use of a modifier to indicate that therapy is distinct from chiropractic manipulation.
For example:
- A patient receives spinal adjustments and then performs therapeutic exercises.
- Chiropractors bill 97110 with the appropriate modifier to show that exercises are separate from manipulations.
3. Procedure Code 97110
Procedure code 97110 is used in billing to report therapeutic exercise services. Providers submit this code to insurance companies for reimbursement.
Using CPT code 97110 ensures clear communication between healthcare providers and insurance payers. Healthcare providers must properly document each session to show the patient’s progress, type of exercise, and duration.
3.1 Frequency and Documentation Requirements
Insurance companies require documentation for each 97110 cpt code session. Requirements typically include:
- Date of service
- Type of exercises performed
- Duration (one unit = 15 minutes)
- Patient response and progress
- Signature of the therapist
For example, a 45-minute session equals 3 units of 97110 procedure code. Accurate documentation is key for reimbursement and compliance.
4. CPT 97110 Reimbursement
Reimbursement for CPT 97110 depends on the insurance provider, geographic location, and type of facility.
Factors influencing reimbursement include:
- Number of units billed
- Medical necessity (must align with patient diagnosis)
- Provider type (PT, chiropractor, or clinic)
Average reimbursement varies, but proper coding with documentation ensures fair compensation. Using 97110 cpt code correctly can prevent claim denials and audits.
4.1 Medically Unlikely Edits (MUE / MCD) for 97110
When billing CPT 97110, providers must also consider Medically Unlikely Edits (MUE/MCD) to avoid overbilling and comply with CMS guidelines.
MCD / MUE Sources: 2026 Medically Unlikely Edits (MUE)
Publisher: CMS
Date: January 01, 2026
| Services | MUE | MUE Rationale |
| Practitioner Services | 6 | Clinical: Medicare Data |
| DME Supplier Services | NA | NA |
| Facility Outpatient Services | 8 | Clinical: Medicare Data |
MCR / Medically Unlikely Edits (MUE)
Sources: 2026 Medically Unlikely Edits (MUE)
Publisher: CMS
Date: January 01, 2026
| Services | MUE | MAI | MUE Rationale |
| Practitioner Services | 6 | 3 | Clinical: Data |
| DME Supplier Services | NA | NA | NA |
| Facility Outpatient Services | 8 | 3 | Clinical: Data |
Key Takeaway:
- For practitioner services, no more than 6 units of 97110 should be billed per day unless medically justified.
- For facility outpatient services, 8 units per day is the CMS MUE limit.
- Healthcare providers must document session duration and therapy necessity accurately to comply with MUE rules.
5. Modifiers for CPT 97110
Billing modifiers are short codes added to CPT claims to provide payers with additional information about the service performed. These modifiers help clarify special circumstances, ensure accurate reimbursement, and prevent claims from being denied or bundled incorrectly.
For CPT code 97110, modifiers are essential when documenting therapeutic exercise services in physical therapy or chiropractic care. Below is a detailed explanation of each relevant modifier.
Modifier 59 – Distinct Procedural Service
Purpose: Indicates that the therapeutic exercise (97110) is a distinct and separate service from other procedures performed on the same day.
Use Case: A patient receives spinal manipulation (chiropractic adjustment) and then performs therapeutic exercises. Billed as 97110-59.
Benefit: Prevents claims from being incorrectly bundled and ensures that both services are reimbursed appropriately.
Modifier 76 – Repeat Procedure by Same Provider
Purpose: Used when the same therapeutic exercise service is repeated by the same provider on the same day.
Use Case: A patient attends two separate therapy sessions for different body regions on the same day. The second session is billed with 97110-76.
Benefit: Clarifies the payer’s records and avoids claim rejections for repeated procedures.
Modifier 77 – Repeat Procedure by Different Provider
Purpose: Applied when the same therapeutic exercise service is repeated by a different provider on the same day.
Use Case: A patient is treated in the morning by one physical therapist and in the afternoon by another. Billed as 97110-77.
Benefit: Ensures accurate billing and prevents confusion in insurance reimbursement.
Modifier KX – Therapy Services Beyond Medicare Threshold
Purpose: Used when therapy services exceed the annual Medicare threshold. Confirms continued medical necessity.
Use Case: A patient has reached the standard annual limit for outpatient therapy services. Billed as 97110-KX.
Benefit: Prevents denial of claims for extended therapy services while ensuring compliance with Medicare rules.
Modifier GP – Physical Therapy Plan of Care
Purpose: Identifies that the service was provided under a physical therapy plan of care.
Use Case: For Medicare claims, billing 97110 under a physical therapy plan requires 97110-GP.
Benefit: Required by Medicare to track therapy services, ensures compliance, and avoids claim denial.
Modifier GO – Occupational Therapy Plan of Care
Purpose: Identifies that the service was provided under an occupational therapy plan of care.
Use Case: When a patient receives 97110 services as part of occupational therapy, the claim uses 97110-GO.
Benefit: Clarifies therapy type for insurance providers and supports correct reimbursement.
Modifier XE – Separate Encounter
Purpose: Indicates a service performed during a separate encounter on the same day.
Use Case: A patient comes in for a follow-up session in the afternoon, separate from a morning evaluation. Billed as 97110-XE.
Benefit: Distinguishes sessions on the same day.
Modifier XS – Separate Structure
Purpose: Shows that the same procedure was performed on a separate anatomical site.
Use Case: Therapeutic exercises performed on both left and right knees. Billed as 97110-XS.
Benefit: Clarifies payer records when multiple anatomical sites are treated on the same day.
Modifier XP – Separate Practitioner
Purpose: Indicates the same procedure was performed by a different practitioner.
Use Case: One therapist performs upper body exercises, another performs lower body exercises on the same day. Billed as 97110-XP.
Benefit: Confirms separation for accurate reimbursement.
Modifier XU – Unusual Non-Overlapping Service
Purpose: Used when a procedure is distinct from other services in a way not normally billed together.
Use Case: 97110 performed with another therapy code typically bundled. Billed as 97110-XU.
Benefit: Prevents claim denials for codes that might be considered bundled.
Modifier 22 – Increased Procedural Services
Purpose: Used if the therapy session required significantly more work than usual.
Use Case: Complex patient requiring extra time or exercises. Billed as 97110-22.
Benefit: Justifies extra work/time.
Modifier 52 – Reduced Services
Purpose: Used when the therapy session is reduced or partially performed.
Use Case: Patient cannot complete full session due to fatigue or pain. Billed as 97110-52.
Benefit: Ensures compliance and prevents disputes with insurers.
Summary of CPT 97110 Modifiers
| Modifier | Use Case | Benefit |
| 59 | Distinct procedural service | Prevents bundling and claim denial |
| 76 | Repeat by same provider | Clarifies repeat sessions |
| 77 | Repeat by different provider | Ensures payer accuracy |
| KX | Beyond Medicare threshold | Confirms medical necessity |
| GP | Physical therapy plan | Required for Medicare claims |
| GO | Occupational therapy plan | Required for Medicare claims |
| XE | Separate encounter | Distinguishes sessions on same day |
| XS | Separate anatomical site | Clarifies treatment of multiple sites |
| XP | Separate practitioner | Confirms distinct provider |
| XU | Unusual non-overlapping service | Avoids bundling denials |
| 22 | Increased procedural service | Justifies extra work/time |
| 52 | Reduced service | Documents partial treatment |
7. CPT 97110 Location-Specific Example
Consider a patient at 1235 S Hemlock St, Cannon Beach, OR. A physical therapist evaluates the patient for post-surgical knee rehabilitation. Exercises include stretching, strengthening, and balance training. Providers bill each 15-minute exercise session under 1235 S Hemlock St, Cannon Beach, OR 97110.
This example demonstrates how CPT 97110 applies in real-world settings and emphasizes correct documentation for insurance billing.
Conclusion
Understanding and correctly using CPT code 97110 is critical for both patient care and accurate reimbursement. Whether in physical therapy or chiropractic care, providers must ensure:
- Proper documentation of exercises and session duration
- Correct use of modifiers
- Adherence to insurance guidelines
By applying 97110 cpt code correctly, medical professionals avoid claim denials, enhance compliance, and ensure patients receive appropriate therapeutic care.