Billing code 31573: LaryngoscopyMedicare rate & RVUs

Reports flexible laryngoscopy used to deliver therapeutic injections to laryngeal structures, such as botulinum toxin for spasmodic dysphonia.

CMS RVU26DEffective Oct 1, 2026109 payment localities3K Medicare services in 2024

Medicare pays $287.25 for 31573 nationally in the office and $128.93 in a hospital or facility. Local office rates run $253.77–$377.04.

Medicare rate · 31573

Laryngoscopy

Swap in your local Medicare rate.

Work RVUs
2.37
Total RVUs
8.60
Global days
000

National rate · 2026

$287.25

Office setting, before claim adjustments.

See every locality for 31573 → · 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 31573 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 31573 covers

An otolaryngologist or laryngologist passes a flexible scope to visualize the larynx and deliver one or more therapeutic injections. A common use is botulinum toxin injection for spasmodic dysphonia; medication may also be injected for another therapeutic purpose. The flexible approach distinguishes this service from injection performed during direct laryngoscopy. It is commonly performed in an office or procedural setting, with the record identifying the target and therapeutic agent.

Report the service when the flexible laryngoscopy and therapeutic injection are performed, not for diagnostic visualization alone or injection intended to augment vocal-fold volume. Document the approach, injection site, purpose, and medication. This minor procedure has a 0-day global period, so same-day preoperative and postoperative care is included. When related endoscopies are performed together, endoscopy-family pricing applies. For a bilateral procedure, modifier 50 is paid at 150%. Assistant-at-surgery payment requires documented medical necessity; co-surgeons and team surgery are 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 31573 pays more and less

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

109 payment localities

$253.77 to $377.04

$253.77$315.41$377.04
One dot per payment locality, office / nonfacility. Hover a dot to see the locality; select it to open that rate.

109 of 109 payment localities

31573 office and facility rates by payment locality
Payment localityOfficeFacility
Alabama$257.52$118.99
Alaska*$334.17$165.56
Arizona$279.44$126.03
Arkansas$253.77$117.77
Atlanta$293.04$132.19
Austin$297.41$129.90
Bakersfield$302.87$129.35
Baltimore/Surr. Cntys$305.68$135.80
Beaumont$268.75$124.68
Brazoria$283.47$126.58

31573 rates by state

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

Explore a state

Local rates. Clear comparisons.

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

$253.77

$339.44

Color shows the midpoint of each state’s locality range.

View every state and territory as a table
31573 office rate range by state
State / territoryOffice rate rangeLocalities
AK$334.171
AL$257.521
AR$253.771
AZ$279.441
CA$301.84–$377.0429
CO$298.111
CT$306.451
DC$327.781
DE$284.081
FL$284.67–$313.673
GA$268.38–$293.042
GU$309.051
HI$309.051
IA$263.331
ID$265.231
IL$276.96–$304.354
IN$266.751
KS$262.461
KY$264.461
LA$264.20–$277.322
MA$296.46–$327.212
MD$289.41–$327.783
ME$267.02–$281.052
MI$271.74–$288.632
MN$284.471
MO$259.88–$277.863
MS$256.861
MT$287.221
NC$269.771
ND$280.111
NE$264.671
NH$293.781
NJ$309.62–$324.422
NM$273.391
NV$285.441
NY$273.87–$339.675
OH$270.291
OK$263.591
OR$282.89–$307.202
PA$270.51–$299.032
PR$289.221
RI$293.921
SC$270.541
SD$279.261
TN$263.841
TX$268.75–$297.418
UT$274.261
VA$280.38–$327.782
VI$289.221
VT$279.351
WA$295.79–$333.512
WI$270.691
WV$266.751
WY$284.121

How the 31573 rate is calculated

Each of 31573’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 · 31573

RVUs × geographic indexes × conversion factor

Swap in your local Medicare rate.

Work 2.37Practice expense 5.87Malpractice 0.36

8.6000 adjusted RVUs×$33.4009 conversion factor=$287.25

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

Payment rules and modifiers for 31573

The CMS indicators that decide how 31573 is paid alongside other services.

CMS payment indicators · 31573

Laryngoscopy

RuleCMS valueWhat it means
Global period000Same-day global: pre- and post-op care on the day of the procedure is included.
Multiple procedures3Endoscopy family rules apply.
Bilateral (modifier 50)1Bilateral with modifier 50 pays 150% of the fee schedule amount.
Assistant at surgery (80/81/82/AS)0Not paid without supporting documentation.
Co-surgeons (62)0Not permitted.
Team surgery (66)0Not permitted.
Professional/technical0Physician service: no professional/technical split.

What modifiers do to the payment

Modifier 50 · payment effect

With and without the modifier

31573 without 50 · national office

$287.25

Laryngoscopy

31573-50 · Bilateral: 150%

$430.88

Both sides on one line with modifier 50 are paid at 150% of the fee schedule amount (subject to multiple-procedure rules with other procedures).

When to use modifier 50

31573 compared with similar codes

Compare codes

31573 vs 31574 vs 31570 vs 31572 vs 31575: national Medicare rates

Swap in your local Medicare rate.

  • 31573
    Laryngoscopy · 2.37 wRVU
    $287.25
  • 31574
    Vocal fold injection · 2.37 wRVU
    $901.82+$614.57
  • 31570
    Vocal fold injection · 3.76 wRVU
    $344.36+$57.11
  • 31572
    Laser laryngoscopy · 2.93 wRVU
    $511.70+$224.45
  • 31575
    Laryngoscopy · 0.92 wRVU
    $127.26−$159.99

How to choose

31574Vocal fold injection
Choose 31573 for therapeutic medication injection, such as botulinum toxin. Choose 31574 when the injection augments vocal-fold volume.
31570Vocal fold injection
Both describe therapeutic vocal-cord injection, but 31570 uses direct laryngoscopy; 31573 uses flexible laryngoscopy.
31572Laser laryngoscopy
31572 treats laryngeal lesions by ablation or destruction. 31573 delivers therapeutic injections instead.
31575Laryngoscopy
31575 is diagnostic flexible laryngoscopy. Report 31573 when the flexible examination includes therapeutic injection.

31573 billing questions

How does 31573 differ from 31574?

31573 is for therapeutic injection, such as botulinum toxin. Use 31574 when the injection is intended to augment vocal-fold volume.

How does 31573 differ from 31570 or 31571?

31573 uses a flexible laryngoscope. Codes 31570 and 31571 describe therapeutic vocal-cord injection performed through direct laryngoscopy.

Can diagnostic laryngoscopy be reported separately?

The flexible visualization needed to perform the therapeutic injection is part of 31573. A separate diagnostic scope service should not be reported for that same work.

How is a bilateral injection reported?

For a bilateral procedure, report modifier 50; CMS pays 150% under the rule for this code.

What documentation supports 31573?

Document the flexible approach, laryngeal injection site, therapeutic purpose, and medication used. For assistant-at-surgery payment, the record must establish medical necessity.

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 31573PPRRVU2026_Oct_nonQPP.csv, line 3,606 (RVU26D)

Open CMS sourceHow we calculate rates

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