A practical guide to CPT codes, modifiers, payer rules, and claim submission
Telerehabilitation has evolved from a pandemic-era workaround into a permanent and reimbursable component of physical therapy practice. For patients facing transportation barriers, geographic isolation, or scheduling constraints, virtual PT visits offer genuine clinical value — and for practices that bill correctly, they represent a viable and increasingly important service line.
This article introduces you to the concepts you need to know to bill telerehabilitation confidently: which CPT codes apply, what modifiers are required, how place-of-service affects reimbursement, and what common denial patterns to watch for.
What Qualifies as a Billable Telerehabilitation Visit?
Not every remote interaction with a patient constitutes a billable telehealth visit. Payers — including Medicare — require that qualifying sessions meet specific technical and clinical standards:
- Real-time, two-way audio and video communication (synchronous only)
- A HIPAA-compliant platform (e.g., Zoom for Healthcare, Doxy.me, or equivalent)
- Services that are clinically appropriate to deliver remotely
- Documentation that mirrors the standard required for in-person visits
Phone-only sessions without video are generally not billable as telehealth under most payer contracts. Store-and-forward (asynchronous) video is similarly excluded in most cases, with limited rural exceptions.
CPT Codes Approved for Telerehabilitation
Physical therapists use the same CPT codes for telehealth as they do in the clinic. The key distinction is the modifier and place-of-service code attached — not the procedure code itself. Below is a summary of commonly used codes and their telehealth eligibility:
| CPT Code | Service Description | Telehealth Eligible? |
| 97161–97163 | PT Evaluation (Low/Moderate/High complexity) | Yes |
| 97164 | PT Re-evaluation | Yes |
| 97110 | Therapeutic Exercise | Yes |
| 97530 | Therapeutic Activities | Yes |
| 97535 | Self-Care / Home Management Training | Yes |
| 97140 | Manual Therapy | No |
| 97012, 97014 | Physical Agent Modalities | No |
Important: Manual therapy (97140), ultrasound, electrical stimulation, and other hands-on modality codes cannot be billed for telehealth visits. If a patient's plan of care relies heavily on these techniques, telerehabilitation may not be clinically appropriate.
Required Modifiers
Modifiers tell the payer that the service was delivered via telehealth rather than in person. Missing or incorrect modifiers are one of the leading causes of telehealth claim denials.
Modifier 95 — Synchronous telemedicine service rendered via interactive audio and video. This is the standard modifier for Medicare and most commercial payers.
Modifier GT — Interactive audio and video telecommunications systems. Still required by some state Medicaid programs and older commercial contracts. Verify with each payer.
Modifier GQ — Asynchronous (store-and-forward) telehealth. Rarely applicable to physical therapy but used in limited rural health contexts.
Most Medicare billing for PT telehealth will use Modifier 95. Build it into your charge templates as a default for all designated telehealth visits to prevent omissions.
Place of Service (POS) Codes
The place of service code reflects where the patient was located during the visit — not where your practice is based. Since 2022, CMS established a distinct code for home-based telehealth:
POS 02 — Telehealth provided other than in the patient's home (e.g., a clinic, workplace, or other facility).
POS 10 — Telehealth provided in the patient's home. This is the most common code for outpatient PT telehealth and is reimbursed at the non-facility rate under the Medicare Physician Fee Schedule.
Using the non-facility rate (POS 10) is typically more favorable for private PT practices than the facility rate and the most compliant. The facility PT practices bill using the UB-04, the facility invoice form, for Medicare. There is no POS indicated on the invoice, although new guidance seems to indicate that the patient's home address is to be listed as the service location. Revenue code 780 (telehealth) is also required, as well as the 95 modifier on the CPT code. Avoid using POS 11 (Office) for telehealth visits — this is a common error that results in denial as there will be a conflict between the modifier and the POS.
Medicare-Specific Billing Rules
Medicare has been the most consequential payer in shaping telerehabilitation policy. Key considerations for Medicare billing include:
- Physical therapists in private practice can bill Medicare for telehealth under their individual NPI. The practice must be an enrolled Medicare provider.
- Telehealth visits are reimbursed at the non-facility rate as priced under the Medicare Physician Fee Schedule — generally more favorable for outpatient PT practices.
- CMS publishes an annual Medicare Telehealth Services List specifying which CPT codes are approved. Not every PT code is included — always verify before billing.
- Geographic eligibility rules (originally requiring rural or HPSA locations) were expanded significantly under PHE waivers. Confirm current rules with CMS, as legislation continues to evolve. (The current waiver concerning PTs as eligible providers, as well as all geographic locations as eligible locales will remain in effect through December 31, 2027.)
Annual update: Review the Medicare Physician Fee Schedule update each fall (typically released in November) for changes to telehealth-eligible CPT codes, modifier requirements, and reimbursement rates that become effective January 1.
Commercial Payers and Medicaid
Coverage for PT telehealth among commercial insurers varies significantly by plan and state. Many states have enacted telehealth parity laws requiring plans to reimburse telehealth at the same rate as equivalent in-person services — but the scope and enforcement of these laws differ.
Best practices for managing commercial payer telehealth billing:
- Pull each payer's telehealth policy document annually and confirm PT is explicitly included (not just physician telehealth).
- Verify which CPT codes and modifiers each payer requires — some contracts still use GT rather than 95.
- Confirm whether prior authorization is required for telehealth visits, even if it is not required in-person.
- Document payer-specific requirements in your billing system to reduce manual errors at point of claim submission.
Medicaid is administered at the state level, and rules on PT telehealth coverage, eligible CPT codes, modifier requirements, and patient location restrictions vary from state to state. Contact your state Medicaid agency or a specialized billing consultant for state-specific guidance. A good place to start your research is the Center for Connected Health Policy.
Common Denial Reasons and Prevention Strategies
Telerehabilitation claims are usually denied for a predictable set of reasons. Identifying these patterns and building systematic prevention into your billing workflow will hopefully reduce rework and protect revenue:
Missing modifier: Build modifier 95 (or GT per payer) into your telehealth charge templates as a default. Relying on manual entry leads to omissions.
Wrong POS code: Use POS 10 for patients receiving telehealth at home. Never use POS 11 for a telehealth visit.
CPT code not on telehealth list: Maintain a payer-specific approved code list and update it after each annual fee schedule release.
No documented patient consent: Include telehealth consent in your intake workflow. Document it in the visit note for every session.
Audio-only session billed for a PT session: Require video for your PT telehealth visits. Document the platform and that both audio and video were active. (Audio only could be used in support of a remote therapeutic monitoring program, however.)
Prior authorization not obtained: Apply the same auth workflow to telehealth as you do to in-person care for payers that require it.
Building a Sustainable Telerehabilitation Billing Program
The practices that succeed in telerehabilitation billing treat it as a formal service line — not an occasional workaround. That means dedicated charge templates with the correct codes and modifiers pre-loaded, staff training on payer-specific requirements, annual policy reviews aligned with fee schedule updates, and clear documentation standards that distinguish telehealth sessions in the record.
Physical therapist services’ reimbursement is not identical to in-person reimbursement, but the gap has narrowed considerably in recent years — and the operational efficiencies of virtual care can more than compensate for any remaining difference when the billing is done right and is appropriate for the care delivery for individual patients.
This article is intended for general educational purposes. Telehealth billing regulations change frequently. Verify all current requirements with CMS, your state Medicaid program, and individual payer contracts before submitting claims.
