Infrared therapy has quietly become one of the most widely used modalities in rehabilitation, physical therapy, chiropractic care, and sports medicine. As more patients look for non-pharmacological pain relief and faster recovery options, infrared therapy continues to gain traction in modern healthcare settings.
However, while the treatment itself is simple and effective, billing it correctly is far from straightforward. Many providers struggle with reimbursement, documentation, and payer scrutiny when using CPT Code 97026.
This comprehensive billing guide explains everything healthcare providers need to know about CPT Code 97026, including its clinical purpose, documentation requirements, reimbursement considerations, related codes, and best practices to maximize revenue while remaining compliant.
CPT Code 97026 for Physical Therapy Billing
CPT Code 97026 represents the application of infrared therapy to one or more areas of the body. It falls under the category of physical medicine and rehabilitation modalities used to deliver superficial heat through infrared radiation.
This therapy typically involves specialized lamps, pads, or infrared-emitting devices that produce dry heat. The heat penetrates the skin and superficial tissues to improve circulation, reduce pain, and promote tissue healing.
Infrared therapy is commonly incorporated into treatment plans in settings such as:
- Physical therapy clinics
- Chiropractic practices
- Sports rehabilitation centers
- Integrative and pain management clinics
Although the treatment is widely used, proper coding and documentation are essential because insurers often consider it a basic modality unless the provider clearly demonstrates medical necessity.
The Science Behind Infrared Therapy
Infrared light therapy works by delivering infrared radiation that penetrates the skin and underlying tissues. Once absorbed by the body, this energy stimulates physiological responses that accelerate healing and reduce discomfort.
One of the key biological mechanisms involves vasodilation, where blood vessels expand in response to the heat. This increased circulation delivers oxygen and nutrients to injured tissues more efficiently.
Another important process is the release of nitric oxide, a molecule known for reducing inflammation and improving cellular repair. Improved circulation combined with reduced inflammation allows damaged tissues to recover more effectively.
Patients often report pain relief because infrared therapy can also stimulate the release of endorphins, the body’s natural pain-relieving chemicals.
This combination of biological effects makes infrared therapy particularly effective for musculoskeletal disorders, chronic pain conditions, and rehabilitation after injuries.
Key Facts About CPT Code 97026
Understanding the clinical and billing characteristics of CPT 97026 is critical for accurate claims submission.
Infrared therapy billed under this code has the following attributes:
Service Type: Superficial physical therapy modality
Delivery Method: Infrared light or heat applied to the body
Purpose: Pain reduction, improved blood flow, and tissue healing
Treatment Areas: One or multiple anatomical regions
Typical Duration: Often performed for about 15 minutes per session
Although many clinics treat for around 15 minutes, exact timing requirements may vary depending on payer policies.
CPT Code 97026 Billing Rules (Units, Time, and Frequency)
Understanding how to bill CPT Code 97026 correctly requires clarity on time, units, and frequency limitations, which can vary by payer.
Time-Based Billing
CPT 97026 is generally considered a timed modality, with treatments often delivered in 15-minute increments. However, payer requirements may differ.
- Some insurers require strict time documentation
- Others treat the service as a per-session modality
Units of Service
- Typically billed as 1 unit per treatment session
- Additional units may require clear justification and documentation
- Overbilling units without documentation can trigger claim denials or audits
Frequency Limits
- Many payers limit how often infrared therapy can be billed
- Excessive or repetitive use without documented progress may be flagged
Key Billing Tips
- Always document start and end time (if required)
- Avoid billing multiple units unless clearly supported
- Ensure therapy contributes to measurable functional improvement
When Should CPT Code 97026 Be Used?
Providers should report CPT Code 97026 when infrared therapy is applied as part of a documented therapeutic intervention designed to improve patient outcomes.
Examples include situations where the therapy helps:
- Reduce inflammation after injury
- Improve range of motion
- Relieve muscle spasms
- Support recovery from soft tissue damage
It is important to note that insurers usually require the therapy to be medically necessary. If the treatment is performed only for comfort or relaxation, reimbursement may be denied.
Infrared therapy can also be billed when used alongside other treatments such as chiropractic adjustments or manual therapy, provided the service is properly documented and clearly distinct.
Conditions Commonly Treated With Infrared Therapy
Infrared therapy is frequently used for patients suffering from musculoskeletal or inflammatory conditions.
Some common clinical indications include:
- Muscle strains and spasms
- Joint stiffness and chronic pain
- Circulatory disorders
- Soft tissue injuries
- Myofascial pain syndrome
- Fibromyalgia
In many rehabilitation programs, infrared therapy is used as an adjunct treatment to prepare tissues for stretching, manual therapy, or therapeutic exercise.
To support accurate billing and reimbursement, it’s equally important to align CPT Code 97026 with appropriate diagnosis codes.
ICD-10 Codes Commonly Used With CPT Code 97026
Accurate diagnosis coding is essential when billing CPT Code 97026. Insurance payers require a clear connection between the patient’s condition (ICD-10 code) and the medical necessity of infrared therapy.
Using appropriate ICD-10 codes strengthens your claim, reduces the risk of denials, and improves reimbursement outcomes.
Common ICD-10 Codes That Support Medical Necessity
| ICD-10 Code | Description |
| M54.5 | Low back pain |
| M25.50 | Joint pain, unspecified |
| M79.1 | Myalgia (muscle pain) |
| M62.830 | Muscle spasm |
| S39.012A | Strain of muscle, fascia, and tendon of lower back |
| M79.7 | Fibromyalgia |
Important Coding Considerations
- The diagnosis must clearly justify why infrared therapy is medically necessary
- Avoid using vague or unsupported codes
- Ensure documentation aligns with the selected ICD-10 code
- Update diagnosis codes as the patient’s condition evolves
Proper diagnosis coding is one of the most important factors in preventing claim denials for CPT 97026
Documentation Requirements for CPT Code 97026
Proper documentation is the backbone of compliant billing. Without clear documentation, claims involving infrared therapy may be denied or flagged for review.
To support CPT Code 97026, the medical record should include the following elements.
Medical Necessity
The provider must explain why infrared therapy is clinically appropriate for the patient’s condition. The diagnosis and treatment plan should justify its use.
Anatomical Area Treated
The specific body region receiving the therapy must be documented, such as the lumbar spine, shoulder, knee, or cervical region.
Duration of Treatment
While not always required by every payer, documenting the length of therapy helps support the medical record and improves claim acceptance.
Therapeutic Goals
The provider should describe the intended outcome of the treatment, such as reducing muscle tension or improving circulation.
Patient Response
Progress notes should include how the patient responded to therapy. This helps justify continued treatment during subsequent visits.
Accurate documentation protects providers during audits and ensures that claims are processed smoothly.
Reimbursement and Coding Considerations
Reimbursement for CPT Code 97026 can vary significantly among payers. Some insurers reimburse modestly for the service, while others bundle it with other modalities unless the documentation clearly demonstrates that it is a separate therapeutic intervention.
Providers should keep several key considerations in mind.
Medical Necessity Is Critical
Payers will frequently deny claims if infrared therapy appears to be used as a passive or comfort-based modality.
Payer-Specific Policies
Certain insurance carriers may require prior authorization or specific documentation guidelines before approving infrared therapy.
Correct Diagnosis Coding
Using appropriate diagnosis codes strengthens the claim. Conditions such as myalgia, joint pain, or musculoskeletal injury often support the use of infrared therapy.
Modifiers
In some cases, modifiers such as -59 or -22 may be necessary to indicate a distinct procedure or increased service complexity.
Medicare Coverage and LCD Guidelines for CPT Code 97026
Medicare coverage for CPT Code 97026 is limited and often subject to strict documentation requirements. In many cases, infrared therapy is considered a superficial modality and may be bundled or not separately reimbursed unless strong medical necessity is demonstrated.
Coverage decisions are typically guided by Local Coverage Determinations (LCDs), which vary by region and Medicare Administrative Contractor (MAC).
Key Medicare Considerations
- Infrared therapy may be denied if considered a passive or non-essential modality
- Providers must clearly document functional improvement and therapeutic goals
- Services that do not directly contribute to patient recovery may not be covered
- Some MACs may include infrared therapy in bundled therapy services
Best Practices for Medicare Billing
- Verify applicable LCD policies in your region
- Ensure documentation supports medical necessity and treatment outcomes
- Avoid billing infrared therapy as a standalone service without justification
- Use supporting documentation to demonstrate clinical value
Note: Understanding Medicare rules is critical because:
- Medicare policies often influence commercial payer behavior
- Poor compliance increases audit risk
Related CPT Codes Used Alongside Infrared Therapy
Infrared therapy rarely exists in isolation. Rehabilitation providers often combine it with other modalities or therapeutic services.
Below are several commonly associated CPT codes used in rehabilitation and laser therapy billing.
CPT Code 97032: Attended Electrical Stimulation
This code represents electrical stimulation therapy provided with constant provider attendance. It is frequently used alongside laser therapy to improve pain control and tissue repair.
CPT Code 97039: Unlisted Modality
When providers perform a modality that does not have a specific CPT code, they may use this unlisted code. It is commonly applied to newer laser therapies such as low-level laser therapy.
CPT Code 97112: Neuromuscular Re-education
This code is used for interventions that improve balance, coordination, posture, and proprioception. Laser therapy may sometimes be incorporated into these rehabilitation programs.
CPT Code 97139: Unlisted Therapeutic Procedure
This code represents therapeutic interventions that do not fall under an existing CPT category but require one-on-one patient care.
CPT Code 97799: Unlisted Procedure
Used when FDA-approved therapies or advanced technologies do not yet have dedicated billing codes.
Each of these codes requires clear documentation and justification to ensure compliance and reimbursement.
CPT Codes for Heat Therapy
Infrared therapy is often compared with other heat-based modalities used in rehabilitation.
Several codes are commonly associated with heat therapy.
CPT Code 97010: Hot or Cold Pack Therapy
This code represents the application of hot or cold packs to relieve pain or inflammation. Unlike CPT 97026, it is considered an untimed modality.
CPT Code 97530: Therapeutic Activities
Although not strictly a heat therapy code, this code may apply when heat therapy is integrated into functional therapeutic activities that improve strength, endurance, or range of motion.
Proper documentation remains essential to demonstrate that the therapy contributes to functional improvement.
Bundling Rules and NCCI Edits for CPT Code 97026
CPT Code 97026 is subject to National Correct Coding Initiative (NCCI) edits, which determine whether it can be billed separately from other procedures.
In many cases, infrared therapy may be bundled with other physical therapy modalities, meaning it is not reimbursed separately unless specific conditions are met.
When Bundling Occurs
- When infrared therapy is performed alongside other modalities
- When it is considered part of a broader treatment session
- When documentation does not support it as a distinct service
Use of Modifiers
To bill CPT 97026 separately, providers may need to use modifiers such as:
- Modifier -59 → Indicates a distinct procedural service
- Modifier -25 → Used in specific evaluation and management scenarios
Compliance Considerations
- Documentation must clearly show that infrared therapy is separate and medically necessary
- Improper modifier use may lead to audits or penalties
- Always follow payer-specific bundling rules
Insurance Coverage for Laser and Infrared Therapy
Insurance coverage for laser and infrared therapies varies widely among providers and plans.
Some insurance companies consider these treatments medically necessary for certain musculoskeletal conditions. Others may categorize them as experimental or elective.
Coverage decisions often depend on:
- The specific diagnosis
- The type of therapy used
- The provider’s documentation of medical necessity
- Prior authorization requirements
Providers should verify coverage with the patient’s insurance plan before initiating treatment to avoid unexpected billing issues.
Common Billing Challenges With Infrared and Laser Therapy
Despite its clinical value, billing infrared therapy can present several challenges.
Cosmetic vs Medical Classification
Laser-based treatments are sometimes categorized as cosmetic procedures. When insurers view a treatment as aesthetic rather than medical, reimbursement is often denied.
Use of Unlisted CPT Codes
Many newer laser therapies lack dedicated CPT codes, forcing providers to rely on unlisted codes that require additional documentation.
Complex Code Selection
Different laser therapies apply to dermatology, ophthalmology, vascular treatments, and musculoskeletal rehabilitation. Choosing the wrong code can easily lead to denials.
Extensive Documentation Requirements
Insurance companies often require detailed records that justify medical necessity and demonstrate patient improvement.
Frequent Insurance Audits
Laser therapies frequently undergo scrutiny from insurers due to their dual use in cosmetic and medical procedures.
Financial Impact of Incorrect Laser Therapy Billing
Coding errors in laser or infrared therapy billing can create significant financial consequences for healthcare organizations.
Revenue Loss
Incorrect coding frequently results in claim denials, delayed payments, or underpayments.
Higher Administrative Costs
Staff must spend additional time researching denied claims, correcting documentation, and resubmitting appeals.
Risk of Compliance Audits
Repeated billing errors increase the likelihood of payer audits or compliance investigations.
Patient Dissatisfaction
Unexpected out-of-pocket costs due to denied claims can damage patient trust and negatively affect a practice’s reputation.
Best Practices for Accurate Infrared Therapy Billing
Healthcare providers can significantly reduce billing issues by following a structured approach to coding and documentation.
Verify Insurance Coverage
Always confirm whether the patient’s insurance plan covers infrared therapy and whether prior authorization is required.
Choose the Correct CPT Code
Ensure that the selected code accurately reflects the procedure performed.
Maintain Detailed Documentation
Records should include treatment duration, anatomical location, clinical rationale, and patient response.
Train Billing and Coding Staff
Continuous training ensures that coding specialists stay up-to-date with changing CPT guidelines and payer policies.
Communicate With Patients
Inform patients about potential out-of-pocket costs before starting therapy to avoid billing disputes.
The Role of Digital Healthcare Platforms in Therapy Billing
Digital healthcare platforms are transforming how clinics manage therapy sessions and billing processes.
Integrated software solutions can streamline scheduling, documentation, and claims submission. These systems also improve compliance by ensuring that clinical records contain all required details for reimbursement.
Advanced platforms provide real-time insights into billing performance, enabling practices to identify trends, reduce denials, and optimize revenue cycle management.
Best Practices for Safe and Effective Infrared Therapy
Clinical effectiveness depends not only on billing accuracy but also on proper treatment protocols.
Patient Assessment
Providers should evaluate each patient’s medical history and determine whether infrared therapy is appropriate.
Equipment Calibration
Infrared devices must be maintained and calibrated to deliver the correct therapeutic dose.
Patient Positioning
Correct positioning ensures that the target area receives effective treatment while maintaining patient comfort.
Monitoring
Patients should be monitored during therapy sessions to detect any adverse reactions.
Post-Treatment Documentation
Providers should record patient responses, symptom changes, and plans for future treatment sessions.
Understanding CPT Code Categories in Physical Therapy
CPT codes fall into three main categories that help standardize medical billing.
Category I codes represent established medical procedures widely recognized by insurers. These include most physical therapy procedures.
Category II codes track quality measures and patient outcomes but do not affect reimbursement.
Category III codes represent emerging technologies and experimental treatments that may eventually become standard procedures.
Understanding these categories helps providers select the correct codes and avoid billing mistakes.
How UControl Billing Helps Healthcare Practices Maximize Revenue
Accurate coding for therapies such as CPT Code 97026 requires deep expertise in medical billing, payer policies, and documentation standards. Even experienced clinics can struggle with denials, delayed reimbursements, and compliance risks.
This is where UControl Billing makes a measurable difference.
UControl Billing specializes in revenue cycle management for physical therapy practices, rehabilitation centers, and healthcare facilities. Their team combines advanced billing technology with expert coding professionals who understand the nuances of therapy billing.
What truly sets UControl Billing apart is its proactive approach to revenue optimization.
We focus on:
- Identifying missed billing opportunities
- Reducing claim denials through accurate coding
- Ensuring complete documentation for therapy services
- Accelerating reimbursement timelines
- Improving overall practice profitability
By streamlining billing processes and ensuring compliance, UControl Billing enables healthcare providers to focus on patient care while maximizing revenue growth.
For practices delivering infrared therapy and other rehabilitation services, partnering with the right billing experts can turn complex coding requirements into a powerful driver of financial performance.
FAQs
What is CPT Code 97026 used for in medical billing?
CPT Code 97026 is used to report the application of infrared therapy to one or more areas of the body. It is categorized under physical medicine and rehabilitation modalities and is typically used by physical therapists, chiropractors, and rehabilitation specialists. The therapy involves applying infrared light or heat to improve circulation, reduce pain, and promote soft tissue healing. Proper documentation of medical necessity and treatment details is essential for accurate billing and reimbursement.
Is CPT Code 97026 considered a timed or untimed code?
CPT Code 97026 is generally treated as a timed modality, with sessions often lasting around 15 minutes. However, payer policies may vary. Some insurance providers may not strictly require the exact duration to be documented, while others expect clear records of treatment time. To ensure compliance, providers should always document the therapy duration along with the anatomical areas treated and the therapeutic goals.
When should healthcare providers bill CPT Code 97026?
Healthcare providers should bill CPT Code 97026 when infrared therapy is medically necessary and part of a documented treatment plan. The therapy must be intended to address specific clinical conditions such as chronic pain, muscle spasms, inflammation, or soft tissue injuries. It should not be used solely for relaxation or comfort. Proper documentation should clearly link the therapy to measurable clinical goals, such as improving mobility or reducing pain.
What conditions are commonly treated using infrared therapy?
Infrared therapy is commonly used to treat a variety of musculoskeletal and circulatory conditions. These include muscle strains, joint stiffness, chronic pain, fibromyalgia, soft tissue injuries, and myofascial pain syndrome. By increasing blood flow and reducing inflammation, infrared therapy can accelerate the healing process and improve patient comfort during rehabilitation.
What documentation is required to bill CPT Code 97026 successfully?
Accurate documentation is critical for compliant billing. Providers must include the medical necessity of the therapy, the anatomical area treated, treatment duration, and the therapeutic goals in the patient’s record. In addition, notes should describe the patient’s response to therapy and any functional improvements observed during follow-up visits. This information helps justify continued treatment and supports claims during insurance reviews or audits.
Does insurance typically cover infrared therapy billed under CPT Code 97026?
Insurance coverage for infrared therapy varies depending on the payer and the patient’s specific insurance plan. Some insurers may reimburse the service when it is medically necessary and supported by appropriate diagnosis codes, while others may classify it as a basic modality with limited reimbursement. Providers should verify coverage and obtain prior authorization when required to reduce the risk of denied claims.
Can CPT Code 97026 be billed alongside other therapy codes?
Yes, CPT Code 97026 can be billed in combination with other therapy services such as therapeutic exercise, neuromuscular re-education, or manual therapy when appropriate. However, providers must ensure that each service is distinct, medically necessary, and clearly documented. In certain cases, modifiers such as -59 may be used to indicate that the infrared therapy was a separate and independent procedure.
How does CPT Code 97026 differ from other heat therapy codes?
CPT Code 97026 specifically refers to infrared light therapy, which uses infrared radiation to generate heat within tissues. In contrast, other codes like CPT 97010 represent the application of hot or cold packs. Infrared therapy typically penetrates deeper into tissues and is often used for targeted therapeutic purposes, whereas hot or cold packs are more commonly used for general pain relief and swelling reduction.
What challenges do providers face when billing infrared or laser therapy?
Billing infrared and laser therapies can be challenging because insurers often scrutinize these treatments closely. Providers may face issues such as denied claims due to insufficient documentation, confusion between cosmetic and medical procedures, or the use of unlisted CPT codes. Proper coding, detailed clinical documentation, and verification of insurance policies are essential to avoid reimbursement delays and compliance risks.
How can healthcare practices improve reimbursement for CPT Code 97026?
Healthcare practices can improve reimbursement by focusing on accurate documentation, proper CPT and ICD-10 coding, and verification of insurance coverage before treatment. Training billing staff and using advanced revenue cycle management solutions can also help reduce errors and accelerate payments. Partnering with experienced medical billing specialists, such as UControl Billing, enables healthcare providers to streamline claims processing, minimize denials, and ultimately drive stronger revenue growth for their practices.
