CPT 43237
Global 000 ActiveEndoscopic us exam esoph
CPT 43237 Billing & Documentation Guide
CPT code 43237 (Endoscopic us exam esoph) is classified under Surgery (Digestive) with a global period indicator of 000. The 2026 Medicare Physician Fee Schedule assigns a work RVU of 3.38, a non-facility practice expense RVU of 1.42, and a malpractice RVU of 0.38, a total non-facility RVU of 5.18 and facility RVU of 5.18. With the current conversion factor of $33.4009, the national average non-facility reimbursement is approximately $175.57, though rates vary from $160.17 to $226.85 based on MAC locality and Geographic Practice Cost Indices (GPCIs).
When billing 43237, ensure documentation supports medical necessity and the specific components required for the code's level of service. For E/M codes, document MDM (medical decision-making) elements: problems addressed, data reviewed, and risk. For procedural codes, document the indication, technique, and any complications. Always verify NCCI edits before bundling 43237 with related codes; this code has 10 PTP bundling relationships on file (see table below).
Payment Status & Global Period
Active code (paid under MPFS)
Endoscopic or minor procedure with related preoperative and postoperative work performed on the same day
MUE Limit (Medically Unlikely Edits)
Submitting more than 1 units of 43237 for the same patient on the same date triggers automatic line denial unless an appropriate modifier and supporting documentation justify the higher quantity.
RVU Breakdown, CPT 43237
| Component | Non-Facility | Facility |
|---|---|---|
| Work RVU | 3.38 | 3.38 |
| Practice Expense RVU | 1.42 | 1.42 |
| Malpractice RVU | 0.38 | 0.38 |
| Total RVU | 5.18 | 5.18 |
| Conversion Factor | $33.4009 | |
2026 Medicare Reimbursement by State, CPT 43237
State-level averages across all MAC localities. Non-facility rates typically apply to office-based services; facility rates apply to hospital outpatient / inpatient.
| State | Non-Facility | Facility | Range (Non-Fac) | Localities |
|---|---|---|---|---|
| California | $179.95 | $179.95 | $173.6 - $200.51 | 29 |
| Florida | $185.19 | $185.19 | $177.31 - $194.37 | 3 |
| Georgia | $173.5 | $173.5 | $170.33 - $176.67 | 2 |
| Illinois | $183.38 | $183.38 | $176.04 - $190.48 | 4 |
| Michigan | $175.3 | $175.3 | $170.53 - $180.06 | 2 |
| North Carolina | $165.26 | $165.26 | $165.26 - $165.26 | 1 |
| New York | $188.41 | $188.41 | $166.88 - $200.08 | 5 |
| Ohio | $168.99 | $168.99 | $168.99 - $168.99 | 1 |
| Pennsylvania | $173.94 | $173.94 | $168.43 - $179.44 | 2 |
| Texas | $172 | $172 | $167.85 - $178.36 | 8 |
Source: CMS PFSRVU 2026 · Updated 2026-04-01. Full locality-level detail available for all 53 states, contact us for custom reports.
NCCI Bundling Edits, CPT 43237
Procedure-to-procedure (PTP) edits. If you bill any of these codes with 43237 on the same date of service, review the modifier indicator and payer policy before submission.
| Partner Code | Relationship | Modifier Allowed | Rationale |
|---|---|---|---|
| 00520 | Column 1 (primary), can be billed with modifier | No | Anesthesia service included in surgical procedure |
| 00731 | Column 1 (primary), can be billed with modifier | No | Anesthesia service included in surgical procedure |
| 00732 | Column 1 (primary), can be billed with modifier | No | Anesthesia service included in surgical procedure |
| 00740 | Column 1 (primary), can be billed with modifier | No | Anesthesia service included in surgical procedure |
| 00810 | Column 1 (primary), can be billed with modifier | No | Anesthesia service included in surgical procedure |
| 00811 | Column 1 (primary), can be billed with modifier | No | Anesthesia service included in surgical procedure |
| 00812 | Column 1 (primary), can be billed with modifier | No | Anesthesia service included in surgical procedure |
| 00813 | Column 1 (primary), can be billed with modifier | No | Anesthesia service included in surgical procedure |
| 0213T | Column 1 (primary), can be billed with modifier | No | Misuse of Column Two code with Column One code |
| 0216T | Column 1 (primary), can be billed with modifier | No | Misuse of Column Two code with Column One code |
Frequently Asked Questions, CPT 43237
What does CPT code 43237 mean? +
CPT code 43237 represents: Endoscopic us exam esoph. It's in the Surgery (Digestive) category with a global period of 000.
What is the Medicare reimbursement for CPT 43237? +
The 2026 Medicare national average non-facility payment for CPT 43237 is $175.57. Rates range from $160.17 to $226.85 across 53 states depending on MAC locality and GPCIs.
What modifiers can I use with CPT 43237? +
Surgery codes commonly use modifier 22 (increased procedural services), 50 (bilateral), 51 (multiple procedures), 52 (reduced services), 58/78/79 (staged, unplanned return, unrelated within global), 62 (co-surgeons), 80/82 (assistant surgeon), and 59 or the X{EPSU} subset for distinct procedural service.
What bundling edits apply to CPT 43237? +
This code has 10 NCCI PTP bundling relationships. See the NCCI Bundling section below for full list.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
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