G0453 HCPCS code: Continuous intraoperative neurophysiology monitoring, from outside the operating room (remote or nearby), per patient, (attention directed exclusively to one patient) each 15 minutes (list in addition to primary procedure)

G0453 is the HCPCS Level II code for continuous intraoperative neurophysiology monitoring, from outside the operating room (remote or nearby), per patient, (attention directed exclusively to one patient) each 15 minutes (list in addition to primary procedure). In 2024 Medicare paid an average of $25.43 per service for G0453 across 369,041 services. Its Medicare coverage code is C (Carrier judgment): Coverage is decided by the Medicare contractor (MAC) case by case. The NCCI unit limit is 10 per day on outpatient hospital claims. Medicare volume rose 5% from 2022 to 2024 (351,917 to 369,041 services). In 2024, about 620 clinicians billed Medicare for G0453 for 62,261 beneficiaries; California, Texas, New York accounted for 39% of services.

Code details

Who bills G0453 (2024)

Counts only. Supplier and clinician names, contact lists and state-by-state detail are in Caduvo.

Medicare utilization for G0453, 2022–2024

States with the most G0453 services (2024)

NCCI unit limits (MUE)

Medicare policy articles for this code

• A56722: Billing and Coding: Intraoperative Neurophysiological Testing (Novitas Solutions, Inc. (MAC - Part A, MAC - Part B))
• A57604: Billing and Coding: Intraoperative Neurophysiological Testing (WPS Insurance Corporation (MAC - Part A, MAC - Part B))

Covered diagnoses (1,028 ICD-10-CM codes)

The diagnoses most often listed as covered in the policy articles above:

Showing 10 of 1,028. The full list, non-covered diagnoses and CSV export are in Caduvo.

What changed for G0453

• 2013-01-01: G0453 added to HCPCS Level II
• Next scheduled CMS quarterly update (HCPCS and DMEPOS fee schedule): 2027-01-01

Frequently asked questions

What is HCPCS code G0453?

G0453 is the HCPCS Level II code for continuous intraoperative neurophysiology monitoring, from outside the operating room (remote or nearby), per patient, (attention directed exclusively to one patient) each 15 minutes (list in addition to primary procedure). Short descriptor: "Cont intraop neuro monitor".

How much does Medicare pay for G0453?

In 2024, the average Medicare payment was $25.43 per service (average allowed $31.99).

Does Medicare cover G0453?

Coverage code C — Carrier judgment. Coverage is decided by the Medicare contractor (MAC) case by case.

Which diagnoses support coverage for G0453?

Medicare policy articles that cite G0453 list 1,028 covered ICD-10-CM diagnosis codes across 2 articles. The most cited include C41.2 (Malignant neoplasm of vertebral column), C70.0 (Malignant neoplasm of cerebral meninges), C70.1 (Malignant neoplasm of spinal meninges). A listed diagnosis is necessary but not sufficient; the policy's other criteria still apply.

How many units of G0453 can be billed per day?

10 on outpatient hospital claims; 40 on practitioner claims (NCCI medically unlikely edits).

Related G04 codes

• G0400 — Home sleep test (hst) with type iv portable monitor, unattended; minimum of 3 channels
• G0402 — Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment
• G0403 — Electrocardiogram, routine ecg with 12 leads; performed as a screening for the initial preventive physical examination with interpretation and report
• G0404 — Electrocardiogram, routine ecg with 12 leads; tracing only, without interpretation and report, performed as a screening for the initial preventive physical examination
• G0405 — Electrocardiogram, routine ecg with 12 leads; interpretation and report only, performed as a screening for the initial preventive physical examination
• G0406 — Follow-up inpatient consultation, limited, physicians typically spend 15 minutes communicating with the patient via telehealth
• G0407 — Follow-up inpatient consultation, intermediate, physicians typically spend 25 minutes communicating with the patient via telehealth
• G0408 — Follow-up inpatient consultation, complex, physicians typically spend 35 minutes communicating with the patient via telehealth
• G0409 — Social work and psychological services, directly relating to and/or furthering the patient's rehabilitation goals, each 15 minutes, face-to-face; individual (services provided by a corf-qualified social worker or psychologist in a corf)
• G0410 — Group psychotherapy other than of a multiple-family group, in a partial hospitalization or intensive outpatient setting, approximately 45 to 50 minutes
• G0411 — Interactive group psychotherapy, in a partial hospitalization or intensive outpatient setting, approximately 45 to 50 minutes
• G0412 — Open treatment of iliac spine(s), tuberosity avulsion, or iliac wing fracture(s), unilateral or bilateral for pelvic bone fracture patterns which do not disrupt the pelvic ring includes internal fixation, when performed

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Next steps

• Run a reimbursement report for a device billed under G0453
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Sources: CMS HCPCS Level II release October 2025; CMS DMEPOS fee schedule; CMS NCCI MUE tables; CMS Medicare utilization (physician and DME supplier files); CMS Medicare Coverage Database articles. Fees are Medicare allowables, not commercial rates. Not billing or legal advice.

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