No office rate
31580 describes a specific laryngoplasty service. Use 31400 when the operation is a laryngeal revision that is not better represented by that specific procedure.
On this page
CMS RVU26D · Effective 2026-10-01
31400 Larynx revision Medicare reimbursement rates in Missouri
Reports an operative revision of laryngeal anatomy, typically by an otolaryngologist when prior laryngeal surgery requires surgical correction. Compare 31400 office and facility rates across CMS payment localities in Missouri.
Amounts below use the non-QP conversion factor for participating physicians. These are base physician payments before claim-level adjustments, not patient costs or total hospital charges.
What does Medicare pay for 31400 in Missouri?
Missouri has 3 payment localities in this comparison. Use the service location to choose the applicable amount. These are the supported base rates for the 3 payment areas shown below, using the same CMS release.
Office / nonfacility
No supported rate
Facility setting
$863.32–$909.95
3 of 3 localities have a supported rate.
These are locality ranges, not averages or address-specific quotes. A facility-setting amount covers the physician service; it does not include a hospital’s separate bill. Choose a locality below to inspect its calculation, compare other payment areas, or price a percentage of Medicare.
Where 31400 pays more and less in Missouri
Laryngeal surgery
About 31400: Operative larynx revision
Reports an operative revision of laryngeal anatomy, typically by an otolaryngologist when prior laryngeal surgery requires surgical correction.
CPT 31400 represents an operative revision of laryngeal anatomy, commonly performed by an otolaryngologist or head and neck surgeon in an operating room. It is used when the surgeon revises a prior laryngeal alteration rather than performing only an examination, biopsy, or routine endoscopic treatment. The operative report should identify the laryngeal structures revised, the corrective work performed, and the reason for revision.
Select this code when the documented operation fits a general larynx revision and a more specific laryngoplasty or other laryngeal procedure does not better describe the work. The 90-day global period includes the day-before preoperative visit and 90 days of related postoperative care. When multiple procedures occur in the same session, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% reduction. Report one service rather than modifier 50. An assistant at surgery may be paid; co-surgeons and team surgery are not permitted.
CMS billing rules for 31400
- Global period
- Major surgery with a 90-day global period: the day-before preoperative visit and 90 days of related postoperative care are included.
- Multiple procedures
- Standard multiple procedure reduction: the highest-valued procedure is paid in full and others at 50% when performed in the same session.
- Bilateral procedures
- Bilateral adjustment does not apply; the descriptor or anatomy makes modifier 50 inappropriate.
- Assistant at surgery
- Assistant at surgery may be paid.
- Co-surgeons
- Co-surgeons not permitted.
- Team surgery
- Team surgery not permitted.
Where the value comes from
- Work RVU11.31 · 40%
- Practice expense (office) RVU15.00 · 54%
- Malpractice RVU1.65 · 6%
42
Medicare services in 2024 · #5464 by national volume
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.
31400 compared with similar codes
Office rates for Missouri, from the same CMS release.
31599
No office rateUnlisted procedure larynx
Use 31599 for a laryngeal procedure without a specific listed code. Use 31400 when the documented service is appropriately represented as larynx revision.
Compare 31400 by payment locality
Find the payment area for your service address, then open its rate page for calculation inputs, release history and the percentage-of-Medicare tool. A city may cross payment-area boundaries; the ZIP lookup above helps resolve the location.
3 of 3 payment localities
Metropolitan Kansas City →
Office / nonfacility
Unavailable
Facility
$902.06
Metropolitan St. Louis →
Office / nonfacility
Unavailable
Facility
$909.95
Rest Of Missouri →
Office / nonfacility
Unavailable
Facility
$863.32
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31400 billing questions
When should I report 31400 instead of a laryngoplasty code?
Use 31400 for a documented operative revision that is not more specifically described by a laryngoplasty code. If the operative report identifies a specific reconstructive technique, evaluate the corresponding specific code.
Can I report 31400 for a laryngeal examination or biopsy?
No. The operative documentation must support revision of laryngeal anatomy; examination or biopsy alone does not describe this service.
What postoperative care is included?
The 90-day global period includes the day-before preoperative visit and 90 days of related postoperative care.
How are other procedures in the same session paid?
The highest-valued procedure is paid in full, and other procedures are subject to the standard multiple procedure reduction.
Can I report modifier 50 for bilateral laryngeal revision?
No. Report the laryngeal revision as one service; modifier 50 is not appropriate for this code.
Can an assistant or co-surgeon be reported?
An assistant at surgery may be paid. Co-surgeons and team surgery are not permitted for this code.
Where these rates come from
FeeBase calculates base physician payments from CMS work, practice-expense, and malpractice RVUs, adjusted by each locality’s geographic indices and the applicable conversion factor. Unavailable or separately priced services are labeled rather than assigned a made-up amount.
Source: RVU26D. Effective 2026-10-01 through the day before 2027-01-01.
3,56531382,,Partial removal of larynx,A,,27.86,23.71,NA,23.71,,4.06,55.63,55.63,0,090,0.10,0.76,0.14,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
3,56631390,,Removal of larynx & pharynx,A,,41.45,25.28,NA,25.28,,6.05,72.78,72.78,0,090,0.10,0.76,0.14,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
3,56731395,,Reconstruct larynx & pharynx,A,,42.71,27.52,NA,27.52,,6.24,76.47,76.47,0,090,0.10,0.76,0.14,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
3,56831400,,Revision of larynx,A,,11.31,15.00,NA,15.00,,1.65,27.96,27.96,0,090,0.10,0.76,0.14,2,0,2,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
3,5693140F,,Upper gi endo shows barrtts,I,,0.00,0.00,,0.00,,0.00,0.00,0.00,9,XXX,0.00,0.00,0.00,9,9,9,9,9,9,,33.4009,09,0,99,0.00,0.00,0.00
3,5703141F,,Upper gi endo not barrtts,I,,0.00,0.00,,0.00,,0.00,0.00,0.00,9,XXX,0.00,0.00,0.00,9,9,9,9,9,9,,33.4009,09,0,99,0.00,0.00,0.00
3,57131420,,Epiglottidectomy,A,,11.14,9.43,NA,9.43,,1.63,22.20,22.20,0,090,0.10,0.76,0.14,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00