CPT 93299 Billing: Monitor Remote Technical

Mukesh MakwanaFounder & CEO · Hands-on medical billing & RCM across 11 specialties · Reviewed September 28, 2026

CPT 93299 is CPT's technical-only code for remote monitoring of implantable cardiovascular physiologic monitors and subcutaneous cardiac rhythm monitors. It still appears in code lists, but Medicare does not use it as a separate line, and that catches practices that carried it over from older billing templates.

What CPT 93299 covers

93299 is remote interrogation device evaluation of an implantable cardiovascular physiologic monitor system or subcutaneous cardiac rhythm monitor system, up to 30 days, covering remote data acquisition, receipt of transmissions, technician review, technical support and distribution of results.

What Medicare did with it

2020: CMS created G2066, a Medicare-specific code priced by the carrier, to report this technical component.
2024: in the CY2024 Physician Fee Schedule final rule, CMS deleted G2066 and accepted the practice-expense inputs for 93297 and 93298. The technical component now travels on those codes, billed globally by one entity or split with modifiers 26 and TC when two entities are involved.

The net effect for Medicare: 93299 is not the line to submit, and G2066 no longer exists. Commercial payers differ, so confirm each policy before dropping the code entirely.

Where 93299 sits in the device monitoring family

93299 is CPT's technical-only code for the two implantable monitor types billed under 93297 and 93298. Medicare does not use it: CMS created G2066 for the technical component in 2020, deleted it for 2024, and accepted the practice-expense inputs on 93297 and 93298, which take modifier TC for the technical part. Some commercial payers still accept 93299, so check each payer's policy. See the full device monitoring family map on the CPT 93294 guide.

Reimbursement context

2026 Medicare RVUs for CPT 93299

CPT 93299 does not appear in the CMS CY 2026 PFS Relative Value File, RVU26D (October release, published 08/26/2026), so Medicare publishes no national RVUs for it. For Medicare, the technical side of this monitoring is carried by the service codes themselves: 93297 and 93298 carry RVUs and split with modifiers 26 and TC when two entities share the work.

To turn RVUs into payment, each component is multiplied by your locality's geographic practice cost index, the three are added, and the sum is multiplied by the 2026 conversion factor: $33.4009, or $33.5675 for qualifying APM participants (CMS-1832-F; CMS fact sheet). The CMS Physician Fee Schedule Look-Up Tool runs that calculation for your locality.

Documentation requirements

The device type and model, and the date of implant.
At least one transmission received and reviewed within the 30-day period.
The dates the monitoring period began and ended.
The data elements reviewed, not merely that a transmission arrived.
A dated, signed report of the analysis and any clinical action taken, where the professional component is billed.
Evidence of the technical infrastructure and technician review, where the technical component is billed.
Confirmation that the period has not already been billed for this patient and device.

Common denials and the exact fix

Reported more than once in the same period

The most common denial in this family. The code covers the whole monitoring period, so a second claim inside it is a duplicate no matter how many transmissions arrived.

Fix: track the period start date per patient and per device, and let the billing system rather than the calendar month drive the claim.

93299 submitted to Medicare

Medicare does not use 93299 as a separate technical line.

Fix: report the technical component with modifier TC on 93297 or 93298, or bill 93297 or 93298 globally when one entity provides both parts.

G2066 still in the charge master

G2066 was deleted for 2024, so a claim still carrying it rejects.

Fix: replace it with the TC modifier on the matching 93297 or 93298 line.

Billed by an entity that does not provide the technical service

Where a third-party service receives and processes the transmissions, that entity bills the technical component.

Fix: map each monitoring arrangement to the entity providing data acquisition and technician review, and bill the technical component from there only.

Billed on a 90-day cycle

The 30-day monitors run on a 30-day period. The 90-day technical code belongs to pacemakers and defibrillators and is 93296.

Fix: bill monthly for these devices.

Modifier rules

26 / TC: not used. 93299 is itself a technical-only code, and Medicare takes the technical component as modifier TC on 93297 or 93298 instead.
59 / XE / XP / XS / XU: rarely applicable to 93299, and never a route to reporting the same 30-day period twice.
25: on a same-day E/M that was separately identifiable, never on the 93299 line.
GY / GA: where a service is statutorily excluded or an advance beneficiary notice is on file, per payer instruction.

NCCI bundling edits

93299 with 93297 or 93298: not used for Medicare, where the technical component is modifier TC on 93297 or 93298. Payers that still accept 93299 treat it as the technical partner of those codes.
93299 reported twice in one 30-day period: duplicate.
93299 with 93296: different device families and different periods.
G2066: deleted for 2024.

Frequently asked questions

Can I bill CPT 93299 to Medicare?

No. Medicare does not use 93299 as a separate technical line. CMS created G2066 for the technical component in 2020, deleted G2066 for 2024, and accepted the practice-expense inputs on 93297 and 93298, so the technical component is reported with modifier TC on those codes. Some commercial payers still accept 93299, so check each payer's policy.

What replaced G2066?

Nothing separate. CMS deleted G2066 in the CY2024 Physician Fee Schedule final rule and moved the technical practice expense onto 93297 and 93298. Billing global or with modifiers 26 and TC on those codes now carries the work G2066 used to.

Who bills the technical component of a 30-day monitor?

The entity that actually provides the data acquisition, receipt of transmissions, technician review and distribution of results. Where a third-party monitoring service does that work, it bills modifier TC on 93297 or 93298 for Medicare, and the practice bills the professional component with modifier 26.

Sources

American Medical Association, CPT 2026 Professional Edition.
Centers for Medicare & Medicaid Services, CY 2026 PFS Relative Value File RVU26D (October release): CPT 93299 is not listed.
Centers for Medicare & Medicaid Services, CY 2026 Physician Fee Schedule final rule, CMS-1832-F: conversion factors.
Centers for Medicare & Medicaid Services, National Correct Coding Initiative Policy Manual for Medicare Services and quarterly procedure-to-procedure edit tables.
Heart Rhythm Society summary of the CY 2024 PFS final rule (deletion of G2066 and the practice-expense inputs moved to 93297 and 93298).

CPT® is a registered trademark of the American Medical Association. Payer policy and NCCI edits change quarterly, so check your own contractor before submission. How we verify this guidance.

Related codes

CPT 93297. Remote implantable physiologic monitor, 30 days.
CPT 93298. Remote subcutaneous rhythm monitor, 30 days.
CPT 93296. Remote pacemaker or ICD check, technical component.

CPT 93299: Remote Monitor Interrogation, Technical Component