CPT code 31536: Laryngeal biopsy, with operating scope2026 Medicare rate & RVUs in Mississippi
An otolaryngologist uses an operating scope during direct laryngoscopy to biopsy a laryngeal lesion, such as a suspicious vocal fold abnormality.
In Mississippi, Medicare pays $168.21 for 31536 in a facility. There’s no office rate.
Check a contract rate as a % of Medicare · 31536 nationwide
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 11 sections
What 31536 covers
An otolaryngologist uses a direct laryngoscope with an operating telescope or microscope to inspect the larynx and take tissue from a lesion for examination. Common indications include a suspicious vocal fold or laryngeal mucosal abnormality, such as a persistent lesion requiring histologic diagnosis. The procedure is commonly performed in an operating room, often under general anesthesia; the specimen is sent for pathology review.
Report this code when the operative scope is used and tissue is sampled for biopsy, rather than when the primary service is diagnostic visualization alone or definitive lesion excision. The operative note should identify the laryngeal site, lesion, biopsy performed, and use of the scope. CMS assigns a 0-day global period, including same-day preoperative and postoperative care. Related endoscopies performed together are subject to endoscopy-family pricing. Modifier 50 is inappropriate. Medicare does not pay an assistant at surgery, and 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.
How Mississippi compares for 31536
Across 109 of 109 payment localities, the facility rate for 31536 runs from $164.45 in Arkansas to $232.53 in Alaska. Mississippi pays $168.21. The RVUs are the same everywhere; the geographic indexes change the dollars.
- Mississippi · this page$168.21
- Los Angeles, CA · California$186.89+$18.68
- Washington, DC area · District of Columbia$195.50+$27.29
- Miami, FL · Florida$205.98+$37.77
- Chicago, IL · Illinois$201.27+$33.06
- Manhattan, NY · New York$203.65+$35.44
- Alaska · Alaska$232.53+$64.32
Other areas in Mississippi first, then benchmark localities. Bars start at $0.
Every other payment area
| Payment locality | Office | Facility |
|---|---|---|
| AlabamaAlabama | — | $166.04 |
| ArkansasArkansas | — | $164.45 |
| ArizonaArizona | — | $175.21 |
| Bakersfield, CACalifornia | — | $179.35 |
| Chico, CACalifornia | — | $177.92 |
| El Centro, CACalifornia | — | $178.00 |
| Fresno, CACalifornia | — | $177.92 |
| Hanford, CACalifornia | — | $177.92 |
| Madera, CACalifornia | — | $177.92 |
| Merced, CACalifornia | — | $177.92 |
| Modesto, CACalifornia | — | $177.92 |
| Napa, CACalifornia | — | $193.23 |
| Oxnard, CACalifornia | — | $184.67 |
| Redding, CACalifornia | — | $177.92 |
| Rest of CaliforniaCalifornia | — | $177.92 |
| Riverside, CACalifornia | — | $183.22 |
| Sacramento, CACalifornia | — | $183.27 |
| Salinas, CACalifornia | — | $182.51 |
| San Diego, CACalifornia | — | $184.23 |
| Marin County, CACalifornia | — | $200.46 |
| San Francisco, CACalifornia | — | $199.91 |
| San Benito County, CACalifornia | — | $204.96 |
| Santa Clara County, CACalifornia | — | $202.69 |
| San Luis Obispo, CACalifornia | — | $179.95 |
| Santa Cruz, CACalifornia | — | $183.99 |
| Santa Maria, CACalifornia | — | $182.49 |
| Santa Rosa, CACalifornia | — | $185.64 |
| Stockton, CACalifornia | — | $177.92 |
| Vallejo, CACalifornia | — | $192.43 |
| Visalia, CACalifornia | — | $177.92 |
| Yuba City, CACalifornia | — | $177.92 |
| ColoradoColorado | — | $179.85 |
| ConnecticutConnecticut | — | $188.40 |
| DelawareDelaware | — | $177.39 |
| Fort Lauderdale, FLFlorida | — | $192.87 |
| Rest of FloridaFlorida | — | $185.19 |
| Atlanta, GAGeorgia | — | $183.42 |
| Rest of GeorgiaGeorgia | — | $177.08 |
| Hawaii, Guam, HIHawaii | — | $178.59 |
| IowaIowa | — | $165.16 |
| IdahoIdaho | — | $166.64 |
| East St. Louis, ILIllinois | — | $191.86 |
| Rest of IllinoisIllinois | — | $184.15 |
| Suburban Chicago, ILIllinois | — | $193.74 |
| IndianaIndiana | — | $167.18 |
| KansasKansas | — | $166.39 |
| KentuckyKentucky | — | $172.41 |
| New Orleans, LALouisiana | — | $178.48 |
| Rest of LouisianaLouisiana | — | $172.93 |
| Metropolitan Boston, MAMassachusetts | — | $191.10 |
| Rest of MassachusettsMassachusetts | — | $180.05 |
| Baltimore area, MDMaryland | — | $188.19 |
| Rest of MarylandMaryland | — | $179.41 |
| Rest of MaineMaine | — | $169.07 |
| Southern Maine, MEMaine | — | $172.57 |
| Detroit, MIMichigan | — | $188.61 |
| Rest of MichiganMichigan | — | $177.04 |
| MinnesotaMinnesota | — | $168.87 |
| Metropolitan Kansas City, MOMissouri | — | $175.78 |
| Metropolitan St. Louis, MOMissouri | — | $176.80 |
| Rest of MissouriMissouri | — | $172.10 |
| MontanaMontana | — | $179.00 |
| North CarolinaNorth Carolina | — | $169.97 |
| North DakotaNorth Dakota | — | $169.31 |
| NebraskaNebraska | — | $165.22 |
| New HampshireNew Hampshire | — | $178.91 |
| Northern New JerseyNew Jersey | — | $194.96 |
| Rest of New JerseyNew Jersey | — | $189.57 |
| New MexicoNew Mexico | — | $178.41 |
| NevadaNevada | — | $176.34 |
| NYC suburbs and Long Island, NYNew York | — | $209.35 |
| Poughkeepsie and northern NYC suburbs, NYNew York | — | $192.14 |
| Queens, NYNew York | — | $202.23 |
| Rest of New YorkNew York | — | $171.81 |
| OhioOhio | — | $175.06 |
| OklahomaOklahoma | — | $170.34 |
| Portland, OROregon | — | $181.92 |
| Rest of OregonOregon | — | $173.98 |
| Metropolitan Philadelphia, PAPennsylvania | — | $186.20 |
| Rest of PennsylvaniaPennsylvania | — | $174.27 |
| Puerto RicoPuerto Rico | — | $179.30 |
| Rhode IslandRhode Island | — | $181.01 |
| South CarolinaSouth Carolina | — | $172.99 |
| South DakotaSouth Dakota | — | $168.16 |
| TennesseeTennessee | — | $167.17 |
| Austin, TXTexas | — | $180.13 |
| Beaumont, TXTexas | — | $173.63 |
| Brazoria, TXTexas | — | $175.93 |
| Dallas, TXTexas | — | $177.56 |
| Fort Worth, TXTexas | — | $177.30 |
| Galveston, TXTexas | — | $176.81 |
| Houston, TXTexas | — | $185.78 |
| Rest of TexasTexas | — | $175.04 |
| UtahUtah | — | $174.53 |
| VirginiaVirginia | — | $173.42 |
| Virgin Islands, VIUnited States Virgin Islands | — | $179.30 |
| VermontVermont | — | $170.47 |
| Rest of WashingtonWashington | — | $179.12 |
| King County, WAWashington | — | $192.50 |
| WisconsinWisconsin | — | $165.73 |
| West VirginiaWest Virginia | — | $179.91 |
| WyomingWyoming | — | $174.77 |
31536 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.
View every state and territory as a table
| State / territory | Office rate range | Localities |
|---|---|---|
| AK | No published base rate | 1 |
| AL | No published base rate | 1 |
| AR | No published base rate | 1 |
| AZ | No published base rate | 1 |
| CA | No published base rate | 29 |
| CO | No published base rate | 1 |
| CT | No published base rate | 1 |
| DC | No published base rate | 1 |
| DE | No published base rate | 1 |
| FL | No published base rate | 3 |
| GA | No published base rate | 2 |
| GU | No published base rate | 1 |
| HI | No published base rate | 1 |
| IA | No published base rate | 1 |
| ID | No published base rate | 1 |
| IL | No published base rate | 4 |
| IN | No published base rate | 1 |
| KS | No published base rate | 1 |
| KY | No published base rate | 1 |
| LA | No published base rate | 2 |
| MA | No published base rate | 2 |
| MD | No published base rate | 3 |
| ME | No published base rate | 2 |
| MI | No published base rate | 2 |
| MN | No published base rate | 1 |
| MO | No published base rate | 3 |
| MS | No published base rate | 1 |
| MT | No published base rate | 1 |
| NC | No published base rate | 1 |
| ND | No published base rate | 1 |
| NE | No published base rate | 1 |
| NH | No published base rate | 1 |
| NJ | No published base rate | 2 |
| NM | No published base rate | 1 |
| NV | No published base rate | 1 |
| NY | No published base rate | 5 |
| OH | No published base rate | 1 |
| OK | No published base rate | 1 |
| OR | No published base rate | 2 |
| PA | No published base rate | 2 |
| PR | No published base rate | 1 |
| RI | No published base rate | 1 |
| SC | No published base rate | 1 |
| SD | No published base rate | 1 |
| TN | No published base rate | 1 |
| TX | No published base rate | 8 |
| UT | No published base rate | 1 |
| VA | No published base rate | 2 |
| VI | No published base rate | 1 |
| VT | No published base rate | 1 |
| WA | No published base rate | 2 |
| WI | No published base rate | 1 |
| WV | No published base rate | 1 |
| WY | No published base rate | 1 |
How the 31536 rate is calculated
Each of 31536’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 · 31536
RVUs × geographic indexes × conversion factor
Work3.46
3.46 RVUs× 1.000 GPCI
Practice expense1.41
1.41 RVUs× 1.000 GPCI
Malpractice0.49
0.49 RVUs× 1.000 GPCI
Adjusted RVUs
5.3600
Conversion factor
$33.4009
Medicare rate
$179.03
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
The exact Mississippi inputs and CMS source lines
PPRRVU2026_Oct_nonQPP.csv
3,591
- Code
- 31536
- Physician work
- 3.46
- Practice expense
- 1.41
- Malpractice
- 0.49
GPCI2026.csv
67
- Locality
- Mississippi
- Physician work
- 1.000
- Practice expense
- 0.861
- Malpractice
- 0.739
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 3.46 | × 1.000 | 3.4600 |
| Practice expense | 1.41 | × 0.861 | 1.2140 |
| Malpractice | 0.49 | × 0.739 | 0.3621 |
| Total RVUs | 5.0361 | ||
| Conversion factor | × 33.4009 | ||
Facility rate, Mississippi$168.21
Facility: (3.46 × 1 + 1.41 × 0.861 + 0.49 × 0.739) × $33.4009 = $168.21
Payment rules and modifiers for 31536
The CMS indicators that decide how 31536 is paid alongside other services.
CMS payment indicators · 31536
Laryngeal biopsy, with operating scope
| Rule | CMS value | What it means |
|---|---|---|
| Global period | 000 | Same-day global: pre- and post-op care on the day of the procedure is included. |
| Multiple procedures | 3 | Endoscopy family rules apply. |
| Bilateral (modifier 50) | 0 | The 150% bilateral adjustment doesn’t apply. |
| Assistant at surgery (80/81/82/AS) | 1 | Not paid (statutory restriction). |
| Co-surgeons (62) | 0 | Not permitted. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 0 | Physician service: no professional/technical split. |
What modifiers do to the payment
Modifier 51 · payment effect
With and without the modifier
31536 without 51 · national facility
$179.03
Laryngeal biopsy, with operating scope
31536-51 · Second procedure: 50%
$89.52
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%).
How 31536 has changed in Mississippi
31536 · Office / nonfacility
Rate unavailable
Effective 2026-10-01
A rate is unavailable in one of these releases, so a change cannot be calculated.
One bar per available release, ordered by effective date. Missing rates remain gaps. These comparisons hold the code, setting and locality identifiers constant; they do not isolate which policy or input caused a change.
What changed, release by release
| Effective from | Office | Facility | CMS release |
|---|---|---|---|
| 2026-10-01 | Not available in this setting | $168.21 | RVU26D |
| 2026-07-01 | Not available in this setting | $168.21 | RVU26C |
| 2026-04-01 | Not available in this setting | $168.21 | RVU26B |
| 2026-01-01 | Not available in this setting | $168.21 | RVU26A |
| 2025-10-01 | Not available in this setting | $188.96 | RVU25D |
| 2025-07-01 | Not available in this setting | $188.96 | RVU25C |
| 2025-04-01 | Not available in this setting | $188.96 | RVU25B |
| 2025-01-01 | Not available in this setting | $188.96 | RVU25A |
| 2024-10-01 | Not available in this setting | $193.60 | RVU24D |
| 2024-07-01 | Not available in this setting | $193.60 | RVU24C |
| 2024-04-01 | Not available in this setting | $193.60 | RVU24B |
| 2024-03-09 | Not available in this setting | $193.60 | RVU24AR |
| 2024-01-01 | Not available in this setting | $190.44 | RVU24A |
| 2023-10-01 | Not available in this setting | $195.60 | RVU23D |
| 2023-07-01 | Not available in this setting | $195.60 | RVU23C |
| 2023-04-01 | Not available in this setting | $195.60 | RVU23B |
| 2023-01-01 | Not available in this setting | $195.60 | RVU23A |
| 2022-10-01 | Not available in this setting | $195.89 | RVU22D |
| 2022-07-01 | Not available in this setting | $195.89 | RVU22C |
| 2022-04-01 | Not available in this setting | $195.89 | RVU22B |
| 2022-01-01 | Not available in this setting | $195.89 | RVU22A |
| 2021-10-01 | Not available in this setting | $194.46 | RVU21D |
| 2021-07-01 | Not available in this setting | $194.46 | RVU21C |
| 2021-04-01 | Not available in this setting | $194.46 | RVU21B |
| 2021-01-01 | Not available in this setting | $194.46 | RVU21A |
| 2020-10-01 | Not available in this setting | $197.88 | RVU20D |
| 2020-07-01 | Not available in this setting | $197.88 | RVU20C |
| 2020-04-01 | Not available in this setting | $197.88 | RVU20B |
| 2020-01-01 | Not available in this setting | $197.88 | RVU20A |
| 2019-10-01 | Not available in this setting | $196.82 | RVU19D |
| 2019-07-01 | Not available in this setting | $196.82 | RVU19C |
| 2019-04-01 | Not available in this setting | $196.82 | RVU19B |
| 2019-01-01 | Not available in this setting | $196.82 | RVU19A |
| 2018-10-01 | Not available in this setting | $195.67 | RVU18D |
| 2018-07-01 | Not available in this setting | $195.67 | RVU18C |
| 2018-04-01 | Not available in this setting | $195.67 | RVU18B |
| 2018-01-01 | Not available in this setting | $195.67 | RVU18AR1 |
| 2017-10-01 | Not available in this setting | $199.26 | RVU17D |
| 2017-07-01 | Not available in this setting | $199.26 | RVU17C |
| 2017-04-01 | Not available in this setting | $199.26 | RVU17B |
| 2017-01-01 | Not available in this setting | $199.26 | RVU17A |
| 2016-10-01 | Not available in this setting | $202.33 | RVU16D |
| 2016-07-01 | Not available in this setting | $202.33 | RVU16C |
| 2016-04-01 | Not available in this setting | $202.33 | RVU16B |
| 2016-01-01 | Not available in this setting | $202.33 | RVU16A |
| 2015-10-01 | Not available in this setting | $202.66 | RVU15D |
| 2015-07-01 | Not available in this setting | $202.66 | RVU15C |
| 2015-04-01 | Not available in this setting | $201.66 | RVU15B |
| 2015-01-01 | Not available in this setting | $201.66 | RVU15A |
| 2014-10-01 | Not available in this setting | $203.45 | RVU14D |
| 2014-07-01 | Not available in this setting | $203.45 | RVU14C |
| 2014-04-01 | Not available in this setting | $203.45 | RVU14B |
| 2014-01-01 | Not available in this setting | $203.45 | RVU14A |
| 2013-10-01 | Not available in this setting | $200.20 | RVU13D |
| 2013-07-01 | Not available in this setting | $200.20 | RVU13C |
| 2013-04-01 | Not available in this setting | $200.20 | RVU13B |
| 2013-01-01 | Not available in this setting | $200.20 | RVU13AR |
Where the Mississippi rate applies
Mississippi is a Medicare payment area, not a city. Our Census mapping connects it to 427 cities and communities in Mississippi. Some span more than one payment area; confirm with the service ZIP.
- Abbeville
- Aberdeen
- Ackerman
- Agricola
- Alcorn State University
- Algoma
- Alligator
- Amory
31536 billing questions
When should this code be chosen instead of 31535?
Choose this code when the laryngeal biopsy is performed with an operating telescope or microscope. Code 31535 describes the related biopsy service without that scope distinction.
Does taking a biopsy include definitive removal of the lesion?
A biopsy samples tissue for diagnosis. When the operative service is excision of a laryngeal tumor or lesion rather than biopsy, consider the applicable excision code, such as 31541 when an operating scope is used.
Can modifier 50 be reported for biopsies on both sides?
No. CMS identifies bilateral adjustment as inappropriate for this code; do not use modifier 50.
What should the operative note document?
Document the laryngeal site and lesion, the tissue sampling, and use of the operating telescope or microscope. The record should make clear that the service was a biopsy rather than diagnostic inspection alone or definitive excision.
How does CMS handle other endoscopies performed in the same session?
When related endoscopies are performed together, CMS applies endoscopy-family pricing. Payment is not determined as though each related endoscopy were an independent procedure.
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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