Medicare Physical Therapy Billing 2026 brings several important updates that outpatient physical therapy practices need to understand, including revised reimbursement rates, new Remote Therapeutic Monitoring (RTM) codes, KX modifier requirements, therapy thresholds, and ongoing compliance obligations. While the fundamentals of Medicare PT billing remain largely unchanged, even small coding or documentation errors can significantly impact revenue and claim approvals.
Medicare physical therapy billing has never been simple, but 2026 added a few more layers.
A new conversion factor, an efficiency adjustment that hit evaluation codes, three brand-new RTM codes, and the same KX modifier and 8-minute rule requirements that trip up even experienced billing teams.
For most outpatient PT practices, the fundamentals have not changed dramatically. The stakes of getting them wrong, though, are as high as ever.
This guide covers 2026 reimbursement rates by code, the 8-minute rule with a real worked example, the therapy threshold and KX modifier rules, the new RTM opportunity, and the modifier mistakes that generate the most denials.
The 2026 Medicare Conversion Factor: What It Means for PT Revenue
CMS finalized the Calendar Year 2026 Medicare Physician Fee Schedule on October 31, 2025.
Two conversion factors apply starting January 1, 2026.
For qualifying Advanced Alternative Payment Model participants, the conversion factor is $33.57. For non-qualifying APM participants, which covers most outpatient PT practices, the rate is $33.40.
The 2025 conversion factor was $32.35, so this is a genuine increase on paper.
CMS also finalized a negative 2.5% efficiency adjustment to work RVUs for non-time-based CPT codes in the 2026 final rule.
The good news is that APTA pushed back hard during the comment period and secured an exemption from that adjustment for the most commonly billed timed PT codes.
Codes 97110, 97140, 97530, and 97112 are all time-based and were exempted. That protects the bulk of most outpatient PT clinic revenue from the efficiency haircut.
Non-timed codes, including the evaluation tier (97161 through 97163), were subject to the adjustment in the original proposal.
Confirm whether your specific evaluation codes ended up on the final efficiency adjustment list by checking the CMS MPFS Look-Up Tool, because the net impact on evaluation reimbursement may be lower than the conversion factor increase suggests.
According to APTA data, proper coding practices can increase reimbursement by up to 15% and reduce claim denials by up to 30%.
That gap between what practices collect and what they are entitled to collect almost always traces back to documentation problems, modifier errors, and threshold tracking failures, not coverage issues.
2026 Medicare Reimbursement Rates for Physical Therapy CPT Codes
The table below reflects national non-facility rates for the most commonly billed PT CPT codes in 2026.
Facility rates are lower and apply when services are rendered in a hospital outpatient department or other facility setting.
Your specific MAC locality will determine the exact rate in your area, so use this table for planning and estimation, not as a hard billing reference.
Evaluation and Re-Evaluation Codes
| CPT Code | Service Description | Billing Type | 2026 Medicare Rate (Non-Facility, Approx.) |
| 97161 | PT Evaluation, low complexity | Untimed, once per eval | ~$102.00 |
| 97162 | PT Evaluation, moderate complexity | Untimed, once per eval | ~$140.00 |
| 97163 | PT Evaluation, high complexity | Untimed, once per eval | ~$175.00 |
| 97164 | PT Re-Evaluation | Untimed, once per re-eval | ~$73.00 |
Therapeutic Procedures (Timed, 15-Minute Units)
| CPT Code | Service Description | Billing Type | 2026 Medicare Rate (Non-Facility, Approx.) |
| 97110 | Therapeutic exercise | Timed, per 15-min unit | ~$30.10 |
| 97112 | Neuromuscular reeducation | Timed, per 15-min unit | ~$30.10 |
| 97116 | Gait training | Timed, per 15-min unit | ~$28.00 |
| 97140 | Manual therapy techniques | Timed, per 15-min unit | ~$27.17 |
| 97530 | Therapeutic activities | Timed, per 15-min unit | ~$34.61 |
| 97535 | Self-care / home management training | Timed, per 15-min unit | ~$30.00 |
| 97150 | Therapeutic procedures, group (2+ patients) | Untimed, per patient | ~$17.47 |
Physical Modalities
| CPT Code | Service Description | Billing Type | 2026 Medicare Rate |
| G0283 | Electrical stimulation, unattended (Medicare only) | Untimed | Varies by locality |
| 97032 | Electrical stimulation, attended | Timed, per 15-min unit | ~$25.00 |
| 97035 | Ultrasound therapy | Timed, per 15-min unit | ~$13.00 |
| 97010 | Hot/cold pack application | Untimed, incident to | Not separately payable |
Remote Therapeutic Monitoring (New for 2026)
| CPT Code | Service Description | Billing Type | 2026 Medicare Rate |
| 98975 | RTM device supply, initial setup | Once per episode | Varies |
| 98976 | RTM device supply, respiratory (per month) | Monthly | Varies |
| 98977 | RTM device supply, musculoskeletal (per month) | Monthly | Varies |
| 98980 | RTM treatment management, first 20 min (per month) | Monthly | ~$50.00 |
| 98981 | RTM treatment management, add-on 20 min (per month) | Monthly | ~$40.00 |
| 98984 | RTM treatment management, 2-15 days monitoring (NEW 2026) | Monthly | Varies |
| 98985 | RTM treatment management, additional 10-19 min (NEW 2026) | Monthly | Varies |
| 98979 | RTM data collection, 2–15-day period (NEW 2026) | Monthly | Varies |
All approximate rates reflect the 2026 conversion factor of $33.40 applied to finalized RVUs. Facility rates are lower. Verify current rates using the CMS Physician Fee Schedule Look-Up Tool or your MAC fee schedule portal before submitting claims.
Core Physical Therapy CPT Codes for Billing Teams
Evaluations: Choosing the Right Complexity Level
The evaluation codes are not one-size-fits-all. Selecting the wrong complexity tier is one of the most common audit triggers in PT billing because it is one of the easiest things for reviewers to verify against your documentation.
· 97161 (Low Complexity) applies when the clinical presentation is stable and uncomplicated, the patient has a limited number of personal factors and comorbidities affecting clinical decisions, and your clinical reasoning involved a limited number of treatment options. Think of a straightforward ankle sprain in an otherwise healthy young adult with a clear mechanism of injury and no complicating factors.
· 97162 (Moderate Complexity) fits a patient with an evolving presentation, some comorbidities affecting how you approach treatment, and a clinical decision process that required weighing multiple options. A middle-aged patient with low back pain radiating to the leg, some hypertension, and a history of prior lumbar surgery fits this tier.
· 97163 (High Complexity) is for patients with unpredictable or unstable clinical presentations, multiple personal factors and comorbidities, an extensive examination requirement, and complex clinical reasoning that integrated multiple data sources. A patient recovering from a major stroke with aphasia, hemiplegic involvement, and cognitive impairment is a high-complexity evaluation.
· Your documentation must actually describe the factors that place the evaluation in a given tier. Defaulting to 97162 for every patient because it is the middle option is a pattern that draws the contractor’s attention. The note needs to match the code.
· 97164 (Re-Evaluation) is not a routine progress note. It is billed when a significant change in the patient’s condition requires a formal reassessment and modification of the plan of care.
Therapeutic Exercise (97110): The Highest Volume Code in PT Billing
CPT 97110 covers exercises to develop strength, endurance, range of motion, and flexibility. It requires direct one-on-one contact and skilled therapeutic intervention throughout the timed period.
- Use 97110 when the session involves targeted, impairment-focused exercise such as building quadriceps strength after a total knee replacement, improving shoulder range of motion after a rotator cuff repair, or restoring lumbar stability after a disc injury.
- Do not use 97110 when the primary goal is functional task performance rather than isolated impairment. If your patient is lifting a box from the floor to a shelf, that is a work-related functional goal and belongs under 97530, not 97110.
Documentation must specify which exercises were performed, what was targeted (strength, endurance, ROM), patient response, and why skilled PT involvement was required rather than a general fitness program.
Therapeutic Activities (97530): The Functional Code
CPT 97530 covers the use of dynamic activities to improve functional performance. The distinction from 97110 is important.
97530 reimburses at approximately $34.61 per unit nationally, higher than 97110, which reimburses at approximately $ 30.10. This is not a reason to upcode. Bill 97530 when the service was actually functional task training, and bill 97110 when it was isolated therapeutic exercise. The chart notes will clearly show the difference, and auditors do look at them.
Manual Therapy (97140): A Win in 2026
Manual therapy saw a positive change in 2026. CMS initially proposed including 97140 in the efficiency adjustment, which would have reduced its RVU value. APTA advocated against that during the rulemaking comment period and succeeded. As a result, 97140 was exempted from the efficiency adjustment.
For practices that bill a significant volume of manual therapy, this translated into preserved reimbursement compared to what would have occurred under the original proposal.
97140 covers skilled hands-on techniques including joint mobilization, manipulation, myofascial release, manual lymphatic drainage, and soft tissue mobilization.
Your documentation must identify the specific area treated, the technique used, and the objective or functional effect on the patient.
Neuromuscular Reeducation (97112): High Audit Scrutiny
97112 is one of the codes that CGS Medicare specifically included in its service-specific post-payment review program alongside 97110, 97140, and 97530. Heavy utilization without corresponding objective documentation draws contractor attention.
This code covers retraining of movement, balance, coordination, kinesthetic sense, posture, and proprioception. The documentation standard here is higher than most therapists realize. “Patient performed balance activities” does not adequately support 97112. A note that says “proprioceptive re-training for weight-bearing tolerance in preparation for safe ambulation to the bathroom, patient demonstrated improved single-leg stance time from 4 seconds to 9 seconds” tells the clinical story this code requires.
The 97014 vs G0283 Mistake That Never Stops Happening
One of the most persistent billing errors in PT practices that treat Medicare patients is submitting 97014 for unattended electrical stimulation on Medicare claims. Medicare does not accept CPT 97014. The correct code for Medicare claims is HCPCS G0283.
If your practice management system does not automatically substitute G0283 for 97014 on Medicare claims, that is a setup issue you need to fix today.
For attended electrical stimulation where the therapist is actively engaged with the patient throughout, use CPT 97032. That is a timed code billed in 15-minute units.
The 8-Minute Rule
The 8-minute rule governs how many units of timed CPT codes you can bill from a single therapy session. It applies to all time-based codes like 97110, 97112, 97140, 97530, 97116, 97035, and 97032. It does not apply to untimed codes like evaluation codes, 97150 group therapy, or G0283 unattended electrical stimulation.
Here is how it works in practice.
A patient comes in for a 52-minute session. You provide the following services:
- Therapeutic exercise (97110): 26 minutes
- Manual therapy (97140): 16 minutes
- Neuromuscular reeducation (97112): 10 minutes
Step 1: Add up total timed minutes. 26 + 16 + 10 = 52 minutes.
Step 2: Divide by 15 to find total billable units. 52 divided by 15 equals 3 full units with 7 minutes remaining. That 7-minute remainder is less than 8, so it does not earn an additional unit.
Step 3: Allocate 3 units to the services, starting with the one that takes the most time. 97110 had 26 minutes (2 units), 97140 had 16 minutes (1 unit), and 97112 had 10 minutes. Since the 3 available units are already allocated to 97110 and 97140, 97112 does not receive a unit, even though 10 minutes of service were provided.
The Therapy Threshold and KX Modifier in 2026
The Current Threshold Numbers
The hard Medicare therapy cap was repealed in 2018. What replaced it is the therapy threshold system, and it still requires active management from every PT practice.
For 2026, the KX modifier threshold is $2,480 for physical therapy and speech-language pathology services combined. Occupational therapy has a separate $2,480 threshold. These dollar amounts reflect Medicare-allowed charges, meaning the Medicare-approved payment amounts, not your billed charges.
Once a patient’s cumulative allowed charges for PT and SLP services combined reach $2,480 in the calendar year, every CPT code on every subsequent claim for that patient through December 31 must have the KX modifier appended. Without it, those claims will be automatically denied.
At $3,000, claims enter what CMS calls targeted medical review. This does not mean every claim above $3,000 gets pulled.
It means Medicare Administrative Contractors may select those claims for closer scrutiny. If your documentation is solid, targeted medical review is not a threat.
If your notes are templated and generic, this is exactly how overpayment demands happen.
The KX Modifier Threshold Table
| Therapy Type | 2026 KX Threshold | Targeted Medical Review |
| PT + SLP combined | $2,480 | $3,000 |
| OT (separate) | $2,480 | $3,000 |
What the KX Modifier Means
When you append KX to a claim, you are attesting that continued therapy services above the threshold are medically necessary and supported by your clinical documentation. That attestation is only as valuable as what is in the chart.
Notes above the threshold need to do more than confirm the patient tolerated treatment. They need to show ongoing medical necessity. That means objective measures of functional progress toward documented goals.
It means clinical rationale for why skilled services remain necessary. It means updated plan of care entries when the treatment focus shifts. It means the therapist’s assessment of whether the patient is progressing, has plateaued with justification for continued skilled maintenance, or is approaching discharge.
The New RTM Codes for Physical Therapy in 2026
Remote Therapeutic Monitoring is a genuine revenue opportunity that most outpatient PT practices have not yet fully built into their workflows. CMS made the most significant RTM expansion since the program launched in 2022 with the 2026 final rule.
Previously, RTM billing required at least 16 days of device data collection within a calendar month and at least 20 minutes of treatment management time. Both of those thresholds were substantially relaxed for 2026.
Effective January 1, 2026, three new RTM codes were added. CPT 98979, 98984, and 98985 allow reimbursement for shorter monitoring periods of 2 to 15 days.
The new 98985 code covers 10 to 19 minutes of treatment management time, a lower bar than the previous 20-minute minimum. All three new codes are classified as sometimes therapy services.
For physical therapists specifically, the GP modifier must be appended to every RTM claim line. RTM claims also need an active plan of care, and the ICD-10 diagnosis on the RTM claim must match the documented condition in the plan of care.
Physical therapist assistants can contribute to monitoring time for codes 98980 and 98981 under general supervision, but the de minimis 10% standard and CQ modifier rules apply to PTA involvement on codes 98975, 98979, 98980, and 98981.
RTM creates a path to bill for care management work that occurs between in-person visits, strengthens patient engagement between sessions, and documents the ongoing skilled nature of the therapeutic relationship in a way that supports medical necessity.
For practices that treat patients with chronic conditions, post-surgical recovery, and complex rehabilitation needs, RTM is worth building into your care model.
Modifiers Every PT Billing Team Must Know
| Modifier | When to Use | Common Mistake |
| GP | On every CPT code for every Medicare PT claim | Forgetting to include it on some codes but not others |
| KX | After patient exceeds $2,480 therapy threshold for PT+SLP | Forgetting to add it, causing automatic denials |
| CQ | When PTA provides 10%+ of a timed service | Missing it entirely creates compliance liability |
| 59 | When two codes on same claim are distinct, non-overlapping services | Appending it without documentation to support separate services |
| GO | OT services (not PT) | Using GO on PT claims or GP on OT claims |
The PTA Differential Payment Policy
Since 2022, Medicare applies a 15% payment reduction to services performed in whole or in part by a physical therapist assistant when the PTA accounts for 10% or more of the service. This rule is still fully in effect for 2026.
The CQ modifier is required when that threshold is met.
Without CQ, the claim is miscoded from a compliance standpoint, and post-payment audits can identify the pattern and issue recoupment demands.
Every practice with PTA staff needs clear documentation of which clinician performed which portion of each service, a billing workflow that flags PTA involvement for modifier application, and regular internal audits to verify CQ is being applied correctly.
Most Common Medicare PT Billing Mistakes and How to Fix Them
These are the errors that most frequently appear in practice audits and billing reviews. Most of them are entirely preventable.
- Using 97014 instead of G0283 on Medicare claims is the most persistent. Fix it in your system setup, not your billing workflow.
- Missing the GP modifier on one or more codes in a session happens when templates are not configured to apply it automatically to every code. Audit your claim templates.
- Incorrect 8-minute rule calculation, usually overbilling by trying to bill one unit per service instead of using aggregate minutes, is a documentation-to-billing communication failure. Train therapists to record per-service time, not just total visit time.
- Failing to append KX when the threshold is crossed is a threshold-tracking failure. Set your system alert at $2,200.
- Missing CQ when a PTA delivered services is a compliance documentation issue. Make PTA versus PT service delivery an explicit field in your clinical notes.
- Weak plan of care documentation that does not support skilled care above the threshold is a clinical education issue. Every therapist needs to understand that their plan of care and progress notes are the legal foundation for the claims submitted under their name.
Final Thoughts
The 2026 changes are mostly about making existing rules work better, not overhauling the system. The new RTM codes are a real revenue opportunity worth building into your care model.
The increase in the conversion factor is real, but only your core timed codes are fully protected from the efficiency adjustment offset.
And the KX modifier threshold of $2,480 means your billing team needs to track cumulative allowed charges per patient in real time, rather than discovering the threshold was crossed three claims ago.
If your practice is seeing a higher-than-normal denial rate, the answer is almost always in documentation workflow, modifier setup, or threshold tracking.
Struggling with Medicare PT Billing Denials and Compliance Challenges?
Medivantek medical billing services help physical therapy practices streamline Medicare billing, reduce denials, improve reimbursement accuracy, and stay compliant with evolving CMS regulations. From CPT coding and modifier management to RTM billing and revenue cycle optimization, our expert billing specialists support practices across the United States.
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