CPT 93017 Billing: Stress Test Tracing Only

CPT 93017 is the technical component of a cardiovascular stress test: the tracing, the equipment, the staff and the space, without supervision or interpretation. Who may bill it is decided by one question, and it is not a clinical one: who owns the equipment.

What CPT 93017 covers

93017 is the cardiovascular stress test, tracing only, without interpretation and report. It covers acquiring the continuous ECG through rest, stress and recovery, along with the equipment and personnel that make that possible.

It pairs with 93016 for supervision and 93018 for the interpretation, both reported by the physician side. Where a single practice provides everything on its own equipment, the correct report is the global 93015.

Reimbursement context

93017 carries the technical value of the stress test, which is the larger share of the global amount in most localities because it absorbs equipment and staffing cost.

Medicare pays for this code under the Physician Fee Schedule, and the amount depends on where you practise. Each code carries relative value units for physician work, practice expense and malpractice, each adjusted by a geographic practice cost index (GPCI) for the locality, and the total is multiplied by the conversion factor:

(work RVU × work GPCI + practice expense RVU × PE GPCI + malpractice RVU × MP GPCI) × conversion factor

For 2026 the conversion factor is $33.4009 for practitioners who are not qualifying APM participants and $33.5675 for qualifying APM participants, as set in the CY 2026 Physician Fee Schedule final rule (CMS-1832-F; see the CMS fact sheet). Because the RVUs differ by code and the GPCIs differ by locality, what your practice is paid will differ from any national average. Pull the RVUs and the payment for your own locality from the CMS Physician Fee Schedule Look-Up Tool.

Documentation requirements

The retained tracing across rest, stress and recovery phases.
Protocol, stage timings and workload or pharmacological agent and dose.
Heart rate and blood pressure recordings at each stage.
Reason for termination.
Evidence of equipment ownership or lease by the billing entity.
The clinical indication, coded specifically.

Common denials and the exact fix

Modifier TC appended to 93017

93017 is already the technical-only code. Adding TC is redundant and some payers reject the line.

Fix: submit 93017 with no component modifier.

Billed by a practice that does not own the equipment

When the facility bills the technical component, a second 93017 from the practice denies as a duplicate for the date of service.

Fix: map each testing location to the entity that owns the equipment, and bill the technical component from there only.

Billed alongside the global code 93015

The tracing is already inside 93015, so the component line duplicates it.

Fix: global or components, never both.

Billed with stress echocardiography 93351

93351 includes the continuous ECG monitoring, so a separate tracing code denies.

Fix: report 93351 alone. With 93350 the stress components remain separately reportable, and with nuclear perfusion imaging such as 78452 they also remain reportable.

CO-50: diagnosis does not support the study

The technical component is held to the same medical-necessity standard as the global code.

Fix: carry the ordering physician's cardiac indication onto the technical claim.

Modifier rules

TC: not used. 93017 is the technical code by definition.
26: never appropriate; the professional work is 93016 and 93018.
76: repeat study on the same day with a documented clinical trigger.
59 / XE / XP / XS / XU: rarely applicable and not a bundling workaround.

NCCI bundling edits

93017 with 93015: the tracing is a component of the global code.
93017 with 93351: included in stress echocardiography with ECG monitoring.
93017 with 93350: separately reportable.
93017 with 78452: separately reportable alongside nuclear perfusion imaging.
93017 with 93000 or 93005: the resting tracing acquired for the stress test is not separately reportable as a routine ECG.

The stress test family splits through four separate codes, not through 26 and TC modifiers. Choosing the wrong member of the family is the single biggest source of stress test denials.

Frequently asked questions

Who bills CPT 93017?

The entity that owns or leases the stress testing equipment and supplies the staff and space, most often a hospital or an independent diagnostic testing facility. A practice that performs the study on its own equipment and also supervises and interprets it reports the global 93015 instead.

Do I append modifier TC to CPT 93017?

No. 93017 is already the tracing-only code, so TC is redundant and can cause a rejection. The stress test family splits through separate codes rather than through 26 and TC modifiers.

Is 93017 separately reportable with a nuclear stress study?

Yes. Myocardial perfusion imaging such as 78452 pays for the imaging, while the stress test itself is reported separately, so the appropriate stress test code including 93017 is reportable when that entity performed the tracing. Stress echocardiography 93351 is the exception, because it already includes the continuous ECG monitoring.

Sources

American Medical Association, CPT 2026 Professional Edition.
Centers for Medicare & Medicaid Services, National Correct Coding Initiative Policy Manual and quarterly edit tables, cms.gov.
Centers for Medicare & Medicaid Services, Physician Fee Schedule Look-Up Tool, cms.gov.
American College of Cardiology, acc.org. AAPC coding resources, aapc.com.

CPT® is a registered trademark of the American Medical Association. Code descriptors are summarised here for billing guidance and are not a substitute for the current CPT codebook. Payer rules and NCCI edits change quarterly; verify against your own payer policy before submission.

Related codes

CPT 93015. Cardiovascular stress test, global.
CPT 93005. ECG tracing only.
CPT 93016. Stress test supervision only.

CPT 93017: Cardiovascular Stress Test, Tracing Only