How to Bill for RTM in 2026: A Month-End Workflow for PT Clinics

Quick answer: In 2026, PT clinics should manage RTM billing on two timelines: a 30-day period for device-supply codes and a calendar month for treatment-management codes. Before claim submission, verify qualifying data-transmission days, documented management time, required real-time interactive communication, payer coverage, and supporting clinical documentation.

Remote Therapeutic Monitoring claims are not created at the end of the month.

Their strength depends on what your clinic tracks throughout the monitoring period: patient data transmission, treatment-management time, interactive communication, and the documentation connecting those activities to the patient's plan of care.

That makes RTM billing less of a one-day billing task and more of a month-long clinical workflow.

This guide shows physical therapy clinics how to organize that workflow in 2026, from patient enrollment through claim submission.

RTM Billing Runs on Two Different Timelines

One of the most common RTM billing mistakes is treating every code as though it follows the same monthly cycle.

It does not.

Device-supply codes are based on the number of qualifying data-transmission days within a 30-day period. Treatment-management codes are based on cumulative time within a calendar month.

Because the two timelines may not begin and end on the same dates, clinics should not rely on a single "monthly total" field.

For example, a patient's device-supply period might run from March 12 through April 10, while treatment-management time resets at the end of March and begins again on April 1.

Your tracking process should make that distinction visible before anyone selects a code.

Step 1: Confirm Billing Readiness Before Monitoring Begins

The month-end process starts before the patient is enrolled.

Before activating RTM, the clinic should confirm:

• The patient has a condition that can be appropriately monitored through RTM.
• The monitoring supports the patient's plan of care.
• The selected technology meets the requirements of the intended RTM service.
• The patient understands how and when to transmit information.
• Consent and setup documentation are complete.
• The patient's payer covers the planned service.
• The responsible billing provider is eligible to report the applicable codes.

Not every patient with a home exercise program automatically qualifies for RTM. The monitoring should generate information the clinician can use to evaluate adherence, response to therapy, symptoms, function, or another relevant therapeutic parameter.

For a more detailed screening process, use our 2026 RTM patient eligibility checklist for PT clinics.

If your clinic is still evaluating technology, review how the platform captures data days, clinician time, communication, and billing evidence, not just how it delivers exercises. Our guide to choosing RTM software for a PT clinic covers those operational questions.

Step 2: Track Data Days Throughout the 30-Day Period

In 2026, musculoskeletal RTM device-supply billing includes two data-day ranges under CMS's 2026 Annual Update to the Therapy Code List, CR 14250 and MM14250:

• CPT 98985: 2 to 15 days of data transmission during a 30-day period
• CPT 98977: 16 to 30 days of data transmission during a 30-day period

CMS added CPT 98985 for 2026 and revised the existing device-supply code descriptions as part of the annual update. Clinics should use the code supported by the patient's qualifying data days and applicable payer rules.

The two codes represent alternative data-day ranges. They should not both be reported for the same device-supply period simply because the patient crossed from one range into the other.

A Practical Tracking Process

Do not wait until the final day of the period to count data days.

Your system should continuously display:

• The beginning and end of the current 30-day period
• Each date with qualifying data transmission
• The patient's current data-day count
• Whether the patient is in the 2 to 15-day or 16 to 30-day range
• Missing or questionable data
• The supporting source record for each counted day

A weekly review gives the clinic time to identify technical issues or patient confusion while the monitoring period is still active.

The purpose is not to pressure a patient to generate billable activity. It is to determine whether the prescribed monitoring is working and whether the available record accurately supports the service performed.

Step 3: Record Treatment-Management Time During the Calendar Month

RTM treatment-management codes are based on cumulative time during a calendar month.

For 2026, treatment-management reporting includes the new lower-time pathway described in the CMS CY 2026 Medicare Physician Fee Schedule Final Rule, CMS-1832-F:

• CPT 98979: 10 to 19 minutes in a calendar month
• CPT 98980: The first 20 minutes in a calendar month
• CPT 98981: Each additional full 20 minutes in the calendar month

CPT 98979 and CPT 98980 are alternative base codes. A clinic should not report both for the same patient in the same calendar month.

CPT 98981 applies only after the requirements for the initial 20-minute code have been met and the record supports an additional full 20-minute increment.

What Should Be Documented

A time log should show more than a monthly total. Each entry should identify:

• The date of the activity
• The clinician or qualified professional performing it
• The number of minutes
• The patient data reviewed
• The clinical assessment or decision made
• Any treatment or home-program adjustment
• Communication with the patient or caregiver
• The method and date of required real-time interactive communication

As summarized in the APTA Remote Therapeutic Monitoring Codes Practice Advisory, treatment-management reporting requires at least one real-time interactive communication with the patient or caregiver during the calendar month.

A portal message or automatically delivered reminder may support the overall care process, but it should not automatically be treated as the required real-time interaction.

Clinics should also distinguish billable treatment-management work from administrative work. Scheduling, routine technical support, and general clerical activity should not be mixed into the clinician's treatment-management total.

Step 4: Run a Billing-Readiness Review Before Month-End

Three to five business days before the end of the month, run a preliminary review of every active RTM patient.

This timing is an operational best practice, not a separate CMS billing requirement. Its purpose is to catch documentation problems while they can still be clarified accurately.

For each patient, review five areas.

1. Enrollment and Coverage

Confirm that the enrollment record, consent, order or plan-of-care documentation, and payer information are complete.

2. Device-Supply Period

Confirm the start and end dates of the current 30-day period and the number of supported data-transmission days.

3. Treatment-Management Time

Reconcile the detailed time entries with the cumulative calendar-month total.

4. Interactive Communication

Confirm that the required real-time interaction occurred and is documented with the date, participants, and clinical context.

5. Clinical Necessity

Make sure the record explains how the monitored information affected clinical management. A list of logins or completed exercises alone may not establish the medical necessity of the treatment-management service.

Patients with missing elements should be moved to an exception list. The clinic can then investigate the record without delaying every RTM claim.

Step 5: Select the Code Path Supported by the Record

The billing team should select codes only after the clinical and technical records have been reconciled.

Meeting a time or data-day threshold does not by itself guarantee payment. The service must also meet the code description, medical-necessity requirements, documentation standards, provider requirements, and the patient's payer policy.

Three Month-End Billing Scenarios

Scenario 1: Lower Data-Day Range and 14 Management Minutes

During the applicable periods, the patient has:

• 12 qualifying data-transmission days
• 14 documented treatment-management minutes
• One documented real-time interactive communication
• Clinical notes showing review and adjustment of the home program

The record may support CPT 98985 for the device-supply service and CPT 98979 for treatment management, assuming all other requirements and payer policies are met.

Scenario 2: Higher Data-Day Range and 26 Management Minutes

The patient has:

• 18 qualifying data-transmission days
• 26 documented treatment-management minutes
• One documented real-time interactive communication
• A documented clinical assessment based on the transmitted data

The record may support CPT 98977 and CPT 98980.

CPT 98979 would not also be reported for the same calendar month. CPT 98981 would not be supported because the record does not contain an additional full 20 minutes beyond the initial 20 minutes.

Scenario 3: Data Present, but Management Requirements Are Incomplete

The patient has:

• 9 qualifying data-transmission days
• 7 treatment-management minutes
• No documented qualifying real-time interaction

The applicable device-supply pathway may still be supported if all other requirements are met. A treatment-management code would not be supported by this record.

The correct response is not to round the time, estimate missing activity, or force a management code. The clinic should bill only what the documentation supports.

Who Owns Each Step in a Small PT Clinic?

A reliable workflow assigns responsibility before month-end.

In a small clinic, one person may perform several of these roles. The important part is that every check has a named owner.

A simple status model can help:

• In progress: The monitoring period or calendar month is still active.
• Ready for review: Preliminary thresholds appear to be met.
• Exception: Documentation, coverage, communication, or data needs review.
• Ready to bill: Clinical and billing validation is complete.
• Hold: The record does not currently support submission.

Month-End RTM Billing Checklist

Before submitting the claim, confirm:

• [ ] Patient eligibility and medical necessity are documented.
• [ ] Consent, setup, and education records are complete.
• [ ] The correct 30-day device-supply period was used.
• [ ] Qualifying data-transmission days were counted from source records.
• [ ] CPT 98985 and CPT 98977 were not both selected for the same period.
• [ ] Treatment-management time was calculated by calendar month.
• [ ] Each time entry identifies the date, duration, provider, and clinical activity.
• [ ] The required real-time interactive communication is documented.
• [ ] CPT 98979 and CPT 98980 were not both selected for the same month.
• [ ] CPT 98981 is supported by an additional full 20 minutes.
• [ ] The clinical note connects monitored data to assessment or treatment decisions.
• [ ] Payer-specific coverage, provider, modifier, and claim requirements were checked.
• [ ] Any unresolved discrepancy was placed on hold instead of being estimated.

Preventing Denials Before the Claim Leaves the Clinic

Many RTM denials originate before claim submission.

The underlying problem may be an incorrect data-day count, missing interactive communication, unsupported time, duplicate code selection, incomplete claim data, or a mismatch between the clinical record and the submitted claim.

That is why the final review should compare three records:

1. The patient-generated or device-transmitted data
2. The clinician's documentation and time log
3. The claim that will be submitted

For a closer look at common failure points, read 5 Reasons RTM Claims Get Denied and How to Prevent Them in 2026.

How Automation Supports the Month-End RTM Billing Workflow

Manually reconciling data days, treatment-management time, communication records, patient eligibility, and claim fields becomes difficult as an RTM program grows.

A connected RTM billing workflow can help clinics:

• Verify patient eligibility
• Generate claims from RTM records
• Carry app-usage, management-time, and communication records into the billing process
• Validate claim fields before submission
• Flag incomplete or inconsistent records for review
• Submit supported claims and track their status

The goal is not to replace clinical judgment or payer-policy review. It is to make missing evidence and claim inconsistencies visible before submission.

The PhyxUp Billing Engine's pre-submission validation workflow shows how RTM clinical activity can be connected to claim preparation and review.

A Reliable RTM Claim Is Built Throughout the Month

A dependable RTM billing process does not begin with code selection.

It begins with an eligible patient, a clinically appropriate monitoring plan, usable technology, and a clear documentation process. Throughout the month, the clinic tracks data days and treatment-management activity on their correct timelines. At month-end, the billing team validates the evidence and submits only the codes the record supports.

When those steps become part of one connected workflow, RTM billing becomes easier to manage, easier to audit, and less dependent on last-minute reconstruction.

See how PhyxUp AI connects RTM activity, documentation, and billing readiness for small PT clinics.

This article is for educational purposes and does not constitute billing, coding, legal, or compliance advice. CPT requirements and payer policies may vary. Confirm current requirements with CMS, the applicable payer, and your qualified billing or compliance professionals before submitting claims.

Official References

• CMS 2026 Annual Update to the Therapy Code List, CR 14250 and MM14250
• CMS Therapy Services
• CMS CY 2026 Medicare Physician Fee Schedule Final Rule, CMS-1832-F
• APTA Remote Therapeutic Monitoring Codes Practice Advisory