Billing code 31370: Partial laryngectomyMedicare rate & RVUs in Utah
Reports an operation removing part of the larynx, typically for a laryngeal tumor, while retaining laryngeal tissue rather than removing the entire organ.
CMS doesn’t publish an office rate for 31370 in Utah.
Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.
On this page 9 sections
What 31370 covers
An otolaryngologist or head and neck surgeon reports this code when an operation removes part of the larynx, commonly to treat a laryngeal tumor, while leaving some laryngeal tissue in place. The service is typically performed in a hospital operating room. It represents a partial organ resection, not simply removal of a vocal-cord lesion or other limited tissue excision. The operative report should establish the extent of the resection and distinguish it from a total laryngectomy or a more specifically described partial procedure.
Report the code supported by the documented operation and its extent; the operative note should identify the tissue removed and any associated procedures. The code has a 90-day global period, including the day-before preoperative visit and related postoperative care during that period. When multiple procedures are performed in the same session, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% reduction. Modifier 50 is inappropriate for this service. An assistant at surgery may be paid; co-surgeon payment requires supporting documentation, and team surgery is not permitted.
This summary was written with AI assistance from CMS physician fee schedule data and checked against the CMS billing rules shown here. Rates on this page come directly from CMS files.
31370 in Utah
| Payment locality | Office | Facility |
|---|---|---|
| Utah | Unavailable | $1,752.28 |
How the 31370 rate is calculated
Each of 31370’s three RVUs is multiplied by a geographic index (GPCI) for the payment locality, added up, and multiplied by the conversion factor. Drag the indexes or enter a ZIP to see what moves the rate.
How the rate is built · 31370
RVUs × geographic indexes × conversion factor
Swap in your local Medicare rate.
Work 26.88Practice expense 23.47Malpractice 3.92
All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.
Payment rules and modifiers for 31370
31370 has a 90-day global period: related visits in that window are included in the surgery payment.
CMS payment indicators · 31370
Partial laryngectomy
| Rule | CMS value | What it means |
|---|---|---|
| Global period | 090 | Major surgery: the day before, the day of, and 90 days after are included. |
| Multiple procedures | 2 | Standard reduction: highest-valued procedure at 100%, others at 50%. |
| Bilateral (modifier 50) | 0 | The 150% bilateral adjustment doesn’t apply. |
| Assistant at surgery (80/81/82/AS) | 2 | Paid. |
| Co-surgeons (62) | 1 | Permitted with supporting documentation. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 0 | Physician service: no professional/technical split. |
| Split (54/55/56) | 0.10/0.76/0.14 | Share of the payment for pre-op, the procedure itself, and post-op care. |
Global surgery period · 31370
Partial laryngectomy
90-day global period ends
Dec 30, 2026
Covers Sep 30, 2026 through Dec 30, 2026 (92 days, including the day before surgery).
Visit on Oct 31, 2026
Day 30 of the 90-day post-op period: related follow-up care is included in the surgical payment.
Pre-op dayGlobal period
What modifiers do to the payment
Modifier 51 · payment effect
With and without the modifier
31370 without 51 · national facility
$1,812.67
Partial laryngectomy
31370-51 · Second procedure: 50%
$906.34
When this isn’t the highest-valued procedure in the session, Medicare pays 50% of its fee schedule amount (the highest is paid at 100%).
31370 compared with similar codes
Compare codes
31370 vs 31300 vs 31360 vs 31365 vs 31367: national Medicare rates
Swap in your local Medicare rate.
How to choose
- 31300Laryngeal lesion removal
- Code 31300 describes a limited laryngeal lesion or foreign-body procedure. Choose 31370 when the documented operation removes part of the larynx.
- 31360Laryngectomy
- Code 31360 is for total larynx removal. Code 31370 is for an operation that leaves part of the larynx in place.
- 31365Laryngectomy
- Code 31365 describes total larynx removal with an associated extensive procedure; 31370 is a partial laryngeal resection. Use the operative report to establish the extent.
- 31367Partial laryngectomy
- Both codes are in the partial laryngectomy family. Compare the specific operative definition and documented extent rather than selecting by the general label alone.
31370 billing questions
How is this different from code 31300?
Code 31370 represents removal of part of the larynx. Code 31300 is for a more limited laryngeal lesion or foreign-body procedure, not a partial organ resection.
When should a total laryngectomy code be considered instead?
Use a total laryngectomy code when the operation removes the entire larynx. This code describes an operation that leaves part of the larynx in place.
Should modifier 50 be appended for bilateral work?
No. Modifier 50 is inappropriate for this code; the service is not reported as a bilateral procedure.
What postoperative care is included in the global period?
The 90-day global period includes the day-before preoperative visit and related postoperative care during the 90 days after surgery.
Can an assistant or co-surgeon be reported?
An assistant at surgery may be paid. Co-surgeon payment requires supporting documentation, while team-surgery billing is not permitted.
How are other procedures in the same session paid?
The highest-valued procedure is paid in full, and other procedures performed in the same session are subject to the standard multiple-procedure reduction.
Where these rates come from
FeeBase calculates base physician payments from CMS work, practice-expense and malpractice RVUs, adjusted by each locality’s geographic indexes and the conversion factor. Services without a published rate are labeled, never given a made-up amount. Amounts are Medicare allowed amounts before claim adjustments: not a patient’s bill or a commercial rate.
CMS RVU26D · effective Oct 1, 2026 through the day before Jan 1, 2027
Show the CMS file lines behind this rate
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