CPT 98977: Musculoskeletal RTM Billing Explained

CPT 98977 is the Remote Therapeutic Monitoring code for the supply of a device used to monitor musculoskeletal system status. It is one of the most valuable codes in the RTM series for orthopedic, physical therapy, and pain management practices — and one of the most frequently underbilled. Most practices that run RTM programs for musculoskeletal patients either fail to bill 98977 at all, bill it without pairing it correctly with the other RTM codes, or apply it to patients who don’t meet the documentation requirements. Understanding what 98977 covers, who qualifies, and how to build a compliant billing workflow around it is worth real money to any practice treating musculoskeletal conditions.

What CPT 98977 Covers

CPT 98977 covers the supply of a medical device used for remote monitoring of musculoskeletal system status, including the transmission of data to the billing practitioner or their clinical staff. It is billable once per 30-day period per patient and requires that the device actually be used — meaning data must have been collected and transmitted during the billing period.

The “device” in this context does not require a traditional medical device in all implementations. CMS guidance on RTM device supply allows for software-based monitoring tools, including smartphone applications, that collect and transmit musculoskeletal data. This means a patient using a validated app to log home exercise completion, pain levels, and functional activity can generate billable 98977 data without a clinic-supplied hardware device — a significant practical advantage for practices managing large RTM panels.

The data that qualifies as musculoskeletal system monitoring includes range of motion tracking, functional activity data, pain and symptom self-report, home exercise program adherence, and response to therapeutic interventions. The monitoring must be ongoing and must generate data that the practitioner or clinical staff reviews — not merely collected data that sits unreviewed.

Eligible Conditions and Diagnoses

CPT 98977 applies to patients with musculoskeletal system conditions being managed under an active therapeutic plan. The most common qualifying diagnoses include post-surgical rehabilitation following orthopedic procedures (total knee replacement, total hip replacement, rotator cuff repair, ACL reconstruction), chronic musculoskeletal pain conditions (low back pain, neck pain, shoulder pain, chronic joint pain), acute musculoskeletal injuries managed non-surgically, and inflammatory arthritis affecting musculoskeletal function.

The diagnosis alone is not sufficient for billing eligibility. The patient must also be enrolled in an active RTM program with a defined monitoring plan, have provided consent for remote monitoring, and actually be generating and transmitting data during the billing period. A patient with a qualifying diagnosis who was enrolled in RTM but never used the monitoring device does not generate a billable 98977 claim for that period.

The 16-day data collection requirement is the specific threshold: data must be collected and transmitted on at least 16 of the 30 days in the billing period for the device supply code to be billable. This threshold exists to ensure the monitoring is actually ongoing rather than a one-time data collection. Practices that bill 98977 without confirming the 16-day threshold has been met are a common audit finding.

Documentation Requirements

Documentation for CPT 98977 must support three elements: that a qualifying device was supplied, that the patient used the device to collect and transmit musculoskeletal data, and that the data was reviewed by the billing practitioner or clinical staff. The medical record should show the RTM enrollment, the device or software supplied, the dates of data transmission, and documentation that data was reviewed during the billing period.

The patient enrollment record should include the signed consent for remote monitoring, the diagnosis being monitored, the monitoring plan, and the patient education provided regarding device use. This enrollment documentation serves as the foundation for all subsequent RTM billing for that patient and should be retained as part of the medical record.

Data review documentation is particularly important and frequently incomplete in audit situations. The record should show that a staff member reviewed the patient’s transmitted data and that the review was clinically meaningful — not just a notation that data was received, but a brief clinical note reflecting what was observed and whether any action was taken. This review note is the evidence that the monitoring program is functioning as intended.

Pairing with Other RTM Codes

CPT 98977 does not stand alone. It is part of a code series that, when billed correctly, generates significantly more revenue per patient than the device supply code alone. The full musculoskeletal RTM billing sequence for an established patient in a given month includes 98977 (device supply), plus 98980 (first 20 minutes of RTM treatment management services), plus 98981 if additional 20-minute increments of treatment management are documented.

CPT 98975 (initial setup and patient education) is billable once per patient at enrollment and should be billed in the first month. This code is frequently missed in practices that start billing RTM without a complete understanding of the code series, representing revenue that cannot be recovered retroactively.

The combination of 98975 (enrollment month only), 98977, 98980, and 98981 where applicable generates the full RTM revenue per patient per month. Practices that bill only 98977 and 98980, for example, are leaving the 98981 additional interaction time revenue on the table in months where their clinical staff document more than 20 minutes of treatment management.

Payer Coverage in 2026

Medicare covers CPT 98977 under the physician fee schedule, with reimbursement rates varying by locality. As of 2026, Medicare reimbursement for 98977 is in the range of $45 to $55 per patient per month depending on geographic adjustment. This rate is additive to the treatment management codes, so the full RTM revenue per patient per month under Medicare is typically $120 to $160 when all eligible codes are billed.

Commercial payer coverage for 98977 has expanded significantly over the past two years. Major commercial payers including Aetna, UnitedHealthcare, Cigna, and Blue Cross Blue Shield plans in most markets now cover musculoskeletal RTM. However, coverage policies vary at the plan level, and prior authorization requirements differ by payer. Verifying coverage before enrolling a commercial patient in RTM is essential to avoid unbillable claims.

Some Medicaid plans cover musculoskeletal RTM, but coverage is highly variable by state. State Medicaid programs that have adopted value-based care arrangements are more likely to cover RTM than those still operating on traditional fee-for-service models. Checking your state Medicaid fee schedule for 98977 is the fastest way to determine Medicaid eligibility in your market.

Billing Workflow Step by Step

A compliant 98977 billing workflow starts at enrollment: identify the eligible patient, obtain written consent, document the diagnosis and monitoring plan, provide device or software setup, and bill 98975 for the setup visit. During each 30-day monitoring period, confirm that data is being collected on at least 16 days, conduct staff review of transmitted data, document the review in the medical record, and track the total time spent on treatment management services.

At the end of each billing period, generate claims for 98977 (confirming 16-day data threshold), 98980 (confirming at least 20 minutes of treatment management time is documented), and 98981 for any additional 20-minute increments. Attach the supporting documentation — data receipt records, review notes, time log — to the claim or retain it in the record for audit purposes.

The practices that maximize 98977 revenue are the ones that build the workflow into their monthly billing cycle rather than treating it as an add-on. Assigned staff responsibility for tracking 16-day compliance, a documentation template for data review notes, and a monthly billing trigger for the RTM code set are the operational components that make consistent, compliant RTM billing achievable at scale.

Physical Therapy and Occupational Therapy Billing Under 98977

Physical therapists and occupational therapists occupy a particularly advantageous position in the RTM billing landscape. They can bill CPT 98977 under their own NPI without requiring physician oversight for the billing itself, their patient panels are nearly 100 percent musculoskeletal in composition, and the home exercise monitoring that is central to PT and OT treatment is exactly the type of data that 98977 is designed to cover.

For a physical therapy practice, the RTM monitoring program is a natural extension of the home exercise program (HEP) that patients are already assigned. When patients log their HEP completion, pain response, and functional outcomes through an app rather than reporting verbally at the next visit, the practice gains clinical data that improves care and generates billable RTM revenue simultaneously. The monitoring is not an addition to the treatment — it is a digitized version of what a well-run PT practice is already trying to accomplish with paper HEP logs.

Occupational therapy practices managing patients with hand injuries, post-surgical upper extremity rehabilitation, or work hardening programs similarly find that RTM monitoring maps directly onto their existing clinical monitoring goals. Activity logs, grip strength self-reporting, pain and fatigue tracking, and ADL completion rates are all natural fits for OT RTM monitoring programs.

Orthopedic Practices and Episode-Based RTM

Orthopedic surgery practices have an opportunity to deploy RTM in episode-based monitoring programs tied to surgical procedures. A patient undergoing total knee replacement generates a time-bounded monitoring need: the practice wants to know how the rehabilitation is progressing, whether pain is following the expected post-surgical trajectory, and whether any complications are developing between post-op visits.

A 60 to 90 day post-surgical RTM program enrolled at discharge or the first post-op visit generates 2 to 3 months of 98977 billing per patient. For an orthopedic practice performing 200 arthroplasties per year, enrolling 60 percent of patients in post-surgical RTM generates 120 enrolled patients at any given time in various stages of the monitoring period. At $110 per patient per month baseline revenue, that is $13,200 in monthly RTM revenue from a program that also improves post-surgical outcome tracking and enables earlier identification of patients who are not recovering on expected trajectory.

Sports medicine practices with high volumes of ACL reconstruction, rotator cuff repair, and other athletic injury management can apply the same episode-based model. The key is framing RTM as part of the post-surgical or post-injury management protocol, not as a separate program the patient has to opt into independently. When RTM enrollment is presented as standard of care for the procedure type, enrollment rates are substantially higher than when it is presented as an optional add-on.

When 98977 Cannot Be Billed

Understanding when 98977 does not apply prevents compliance problems and claim denials. The most common scenarios where 98977 is not billable despite superficially qualifying circumstances:

• Patient enrolled but not using the device: A patient who consented to RTM but has not transmitted data on at least 16 days in the billing period does not meet the data threshold. The device supply code is not billable for that month, regardless of enrollment status.
• Data collected but not reviewed: If monitoring data was transmitted but there is no documentation that clinical staff reviewed it, the claim lacks the review element required to support 98977 billing.
• Diagnosis not supported in the record: A musculoskeletal diagnosis must be actively documented as a current diagnosis under treatment. Billing 98977 for a patient whose musculoskeletal condition resolved but who remains enrolled in the monitoring program is not supported.
• Program paused due to acute illness or hospitalization: A patient who is hospitalized during a monitoring period and unable to use the device may not generate sufficient data days for that billing month. Billing should reflect actual compliance, not projected compliance.

Practices that track these exclusion scenarios systematically — rather than billing 98977 by default for all enrolled patients at month end — maintain cleaner claim records and lower audit risk. The monthly billing process for 98977 should include a review of per-patient compliance before the claim is submitted, not an assumption that all enrolled patients are billable.