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Billing code 31375: Partial laryngectomyMedicare rate & RVUs

Reports removal of the supraglottic portion of the larynx while preserving lower laryngeal structures, typically for selected laryngeal disease.

CMS RVU26DEffective Oct 1, 2026109 payment localities20 Medicare services in 2024

Medicare pays $1,726.16 for 31375 nationally in a facility.

Medicare rate · 31375

Partial laryngectomy

Swap in your local Medicare rate.

Work RVUs
25.42
Total RVUs
51.68
Global days
090

National rate · 2026

$1,726.16

Facility setting, before claim adjustments.

See every locality for 31375 → · Billed by an NP, PA or therapist? →

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 10 sections
  1. Medicare rate
  2. What 31375 covers
  3. By payment locality
  4. Rate map
  5. How it’s calculated
  6. Payment rules
  7. Similar codes
  8. Related codes
  9. Billing questions
  10. Sources

What 31375 covers

An otolaryngologist or head and neck surgeon removes the upper portion of the larynx in a horizontal resection, preserving the lower larynx. This operation is used for selected disease confined to the supraglottic region, such as a laryngeal malignancy, when the surgeon can leave functioning laryngeal structures. It is generally performed in a hospital operating room, with postoperative care directed at airway, swallowing, and voice function.

Select the code from the operative report’s documented resection and reconstruction, distinguishing this supraglottic procedure from vertical partial removal, more extensive partial procedures, and total laryngectomy. Documentation should identify the structures removed and retained and describe any associated neck dissection or reconstruction. The code has a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. When multiple procedures occur in the same session, the highest-valued is paid in full and others at 50%. Modifier 50 is inappropriate. Assistant-at-surgery payment may be available; 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.

Where 31375 pays more and less

The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.

109 of 109 payment localities

31375 office and facility rates by payment locality
Payment localityOfficeFacility
AlabamaUnavailable$1,578.33
Alaska*Unavailable$2,144.17
ArizonaUnavailable$1,685.00
ArkansasUnavailable$1,559.97
AtlantaUnavailable$1,765.60
AustinUnavailable$1,757.47
BakersfieldUnavailable$1,766.31
Baltimore/Surr. CntysUnavailable$1,824.04
BeaumontUnavailable$1,649.57
BrazoriaUnavailable$1,698.98

31375 rates by state

Office rate range in each state. Select a state to see its payment localities.

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Local rates. Clear comparisons.

Hover or focus a tile to see its rate range. Select it to open the state’s fee schedule.

View every state and territory as a table
31375 office rate range by state
State / territoryOffice rate rangeLocalities
AKNo published base rate1
ALNo published base rate1
ARNo published base rate1
AZNo published base rate1
CANo published base rate29
CONo published base rate1
CTNo published base rate1
DCNo published base rate1
DENo published base rate1
FLNo published base rate3
GANo published base rate2
GUNo published base rate1
HINo published base rate1
IANo published base rate1
IDNo published base rate1
ILNo published base rate4
INNo published base rate1
KSNo published base rate1
KYNo published base rate1
LANo published base rate2
MANo published base rate2
MDNo published base rate3
MENo published base rate2
MINo published base rate2
MNNo published base rate1
MONo published base rate3
MSNo published base rate1
MTNo published base rate1
NCNo published base rate1
NDNo published base rate1
NENo published base rate1
NHNo published base rate1
NJNo published base rate2
NMNo published base rate1
NVNo published base rate1
NYNo published base rate5
OHNo published base rate1
OKNo published base rate1
ORNo published base rate2
PANo published base rate2
PRNo published base rate1
RINo published base rate1
SCNo published base rate1
SDNo published base rate1
TNNo published base rate1
TXNo published base rate8
UTNo published base rate1
VANo published base rate2
VINo published base rate1
VTNo published base rate1
WANo published base rate2
WINo published base rate1
WVNo published base rate1
WYNo published base rate1

How the 31375 rate is calculated

Each of 31375’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 · 31375

RVUs × geographic indexes × conversion factor

Swap in your local Medicare rate.

Work 25.42Practice expense 22.56Malpractice 3.70

51.6800 adjusted RVUs×$33.4009 conversion factor=$1,726.16

All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.

Payment rules and modifiers for 31375

31375 has a 90-day global period: related visits in that window are included in the surgery payment.

CMS payment indicators · 31375

Partial laryngectomy

RuleCMS valueWhat it means
Global period090Major surgery: the day before, the day of, and 90 days after are included.
Multiple procedures2Standard reduction: highest-valued procedure at 100%, others at 50%.
Bilateral (modifier 50)0The 150% bilateral adjustment doesn’t apply.
Assistant at surgery (80/81/82/AS)2Paid.
Co-surgeons (62)1Permitted with supporting documentation.
Team surgery (66)0Not permitted.
Professional/technical0Physician service: no professional/technical split.
Split (54/55/56)0.10/0.76/0.14Share of the payment for pre-op, the procedure itself, and post-op care.

Global surgery period · 31375

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.

  • 24 Unrelated E/M visit by the same physician
  • 79 Unrelated procedure (starts its own global period)
  • 58 Staged, more extensive, or therapy procedure that was planned
  • 78 Unplanned return to the operating room for a related complication
SurgeryVisit
Sep 23, 2026Jan 10, 2027

Pre-op dayGlobal period

What modifiers do to the payment

Modifier 51 · payment effect

With and without the modifier

31375 without 51 · national facility

$1,726.16

Partial laryngectomy

31375-51 · Second procedure: 50%

$863.08

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%).

When to use modifier 51

31375 compared with similar codes

Compare codes

31375 vs 31370 vs 31367 vs 31360: national Medicare rates

Swap in your local Medicare rate.

  • 31375
    Partial laryngectomy · 25.42 wRVU
    —
  • 31370
    Partial laryngectomy · 26.88 wRVU
    —
  • 31367
    Partial laryngectomy · 29.81 wRVU
    —
  • 31360
    Laryngectomy · 29.16 wRVU
    —

How to choose

31370Partial laryngectomy
31375 is the horizontal supraglottic partial operation; 31370 describes a vertical partial laryngectomy. Follow the resection documented in the operative report.
31367Partial laryngectomy
31367 includes radical neck dissection and does not include reconstruction. This code identifies the supraglottic horizontal partial laryngectomy.
31360Laryngectomy
31360 is used for total laryngectomy, while this code describes removal of only part of the larynx.

Codes related to 31375

Related codes aren’t interchangeable: bill the code that matches the service performed.

Codes related to 31375
CodeHow it relatesNational office range
Same family
31370Partial laryngectomyA vertical partial laryngectomy; the operative orientation and resection determine the appropriate code.No office rate
31367Partial laryngectomyPartial laryngectomy with radical neck dissection and without reconstruction.No office rate
31368Partial laryngectomyPartial laryngectomy with radical neck dissection and reconstruction.No office rate
Used instead
31360LaryngectomyApplies when the operation removes the entire larynx rather than part of it.No office rate
31300Laryngeal lesion removalCovers a more limited laryngeal lesion-removal operation rather than partial laryngectomy.No office rate

31375 billing questions

How is this distinguished from 31370?

This code describes a horizontal supraglottic resection. Code 31370 describes a vertical partial laryngectomy, so use the operative approach and extent documented by the surgeon.

When would 31360 be more appropriate?

Use 31360 when the operation removes the entire larynx. This code is for a partial operation that preserves lower laryngeal structures.

Does modifier 50 apply?

No. CMS identifies bilateral adjustment as inappropriate for this code; the descriptor or anatomy does not support modifier 50.

What documentation supports code selection?

The operative report should establish the horizontal supraglottic extent, structures removed and retained, and whether neck dissection or reconstruction was performed.

How are other same-session procedures paid?

Under the standard multiple procedure reduction, the highest-valued procedure is paid in full and other procedures are paid at 50%. Assistant-at-surgery payment may be available; co-surgeon payment requires supporting documentation.

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
RVUs for 31375PPRRVU2026_Oct_nonQPP.csv, line 3,563 (RVU26D)

Open CMS sourceHow we calculate rates

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