CPT code 31513: Vocal-fold injection, indirect approach2026 Medicare rate & RVUs in Idaho
Reports therapeutic injection into a vocal fold under indirect laryngoscopic visualization, commonly to improve glottic closure in vocal-fold paralysis or atrophy.
In Idaho, Medicare pays $105.63 for 31513 in a facility. There’s no office rate.
Check a contract rate as a % of Medicare · 31513 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 31513 covers
An otolaryngologist uses indirect laryngoscopic visualization while injecting material into a vocal fold to improve closure and voice function. Common clinical reasons include vocal-fold paralysis or atrophy causing glottic insufficiency. The service may be performed in an office or facility; the record should identify the indication, injection site and approach, and the material used when known.
Select this code when the therapeutic injection is performed with an indirect approach, rather than direct laryngoscopy. Document the treatment and visualization performed; diagnostic visualization alone does not support the injection service. The 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. Modifier 50 is inappropriate for this code. An assistant at surgery is paid only when medical necessity is documented; 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 Idaho compares for 31513
Across 109 of 109 payment localities, the facility rate for 31513 runs from $103.87 in Arkansas to $145.75 in Alaska. Idaho pays $105.63. The RVUs are the same everywhere; the geographic indexes change the dollars.
- Idaho · this page$105.63
- Los Angeles, CA · California$119.59+$13.96
- Washington, DC area · District of Columbia$124.66+$19.03
- Miami, FL · Florida$129.82+$24.19
- Chicago, IL · Illinois$126.76+$21.13
- Manhattan, NY · New York$129.36+$23.73
- Alaska · Alaska$145.75+$40.12
Other areas in Idaho first, then benchmark localities. Bars start at $0.
Every other payment area
| Payment locality | Office | Facility |
|---|---|---|
| AlabamaAlabama | — | $104.93 |
| ArkansasArkansas | — | $103.87 |
| ArizonaArizona | — | $111.07 |
| Bakersfield, CACalifornia | — | $114.48 |
| Chico, CACalifornia | — | $113.63 |
| El Centro, CACalifornia | — | $113.68 |
| Fresno, CACalifornia | — | $113.63 |
| Hanford, CACalifornia | — | $113.63 |
| Madera, CACalifornia | — | $113.63 |
| Merced, CACalifornia | — | $113.63 |
| Modesto, CACalifornia | — | $113.63 |
| Napa, CACalifornia | — | $124.37 |
| Oxnard, CACalifornia | — | $118.27 |
| Redding, CACalifornia | — | $113.63 |
| Rest of CaliforniaCalifornia | — | $113.63 |
| Riverside, CACalifornia | — | $116.77 |
| Sacramento, CACalifornia | — | $117.30 |
| Salinas, CACalifornia | — | $116.82 |
| San Diego, CACalifornia | — | $118.12 |
| Marin County, CACalifornia | — | $129.34 |
| San Francisco, CACalifornia | — | $129.01 |
| San Benito County, CACalifornia | — | $132.25 |
| Santa Clara County, CACalifornia | — | $130.90 |
| San Luis Obispo, CACalifornia | — | $115.15 |
| Santa Cruz, CACalifornia | — | $118.12 |
| Santa Maria, CACalifornia | — | $116.86 |
| Santa Rosa, CACalifornia | — | $119.20 |
| Stockton, CACalifornia | — | $113.63 |
| Vallejo, CACalifornia | — | $123.90 |
| Visalia, CACalifornia | — | $113.63 |
| Yuba City, CACalifornia | — | $113.63 |
| ColoradoColorado | — | $114.53 |
| ConnecticutConnecticut | — | $119.69 |
| DelawareDelaware | — | $112.50 |
| Fort Lauderdale, FLFlorida | — | $121.85 |
| Rest of FloridaFlorida | — | $116.88 |
| Atlanta, GAGeorgia | — | $116.28 |
| Rest of GeorgiaGeorgia | — | $111.60 |
| Hawaii, Guam, HIHawaii | — | $114.34 |
| IowaIowa | — | $104.71 |
| East St. Louis, ILIllinois | — | $120.55 |
| Rest of IllinoisIllinois | — | $115.94 |
| Suburban Chicago, ILIllinois | — | $122.48 |
| IndianaIndiana | — | $106.00 |
| KansasKansas | — | $105.36 |
| KentuckyKentucky | — | $108.81 |
| New Orleans, LALouisiana | — | $112.79 |
| Rest of LouisianaLouisiana | — | $109.08 |
| Metropolitan Boston, MAMassachusetts | — | $122.17 |
| Rest of MassachusettsMassachusetts | — | $114.57 |
| Baltimore area, MDMaryland | — | $119.54 |
| Rest of MarylandMaryland | — | $113.88 |
| Rest of MaineMaine | — | $107.07 |
| Southern Maine, MEMaine | — | $109.67 |
| Detroit, MIMichigan | — | $118.97 |
| Rest of MichiganMichigan | — | $111.73 |
| MinnesotaMinnesota | — | $107.77 |
| Metropolitan Kansas City, MOMissouri | — | $111.18 |
| Metropolitan St. Louis, MOMissouri | — | $111.88 |
| Rest of MissouriMissouri | — | $108.43 |
| MississippiMississippi | — | $106.11 |
| MontanaMontana | — | $113.54 |
| North CarolinaNorth Carolina | — | $107.69 |
| North DakotaNorth Dakota | — | $107.81 |
| NebraskaNebraska | — | $104.81 |
| New HampshireNew Hampshire | — | $113.80 |
| Northern New JerseyNew Jersey | — | $124.20 |
| Rest of New JerseyNew Jersey | — | $120.50 |
| New MexicoNew Mexico | — | $112.57 |
| NevadaNevada | — | $111.98 |
| NYC suburbs and Long Island, NYNew York | — | $132.94 |
| Poughkeepsie and northern NYC suburbs, NYNew York | — | $122.04 |
| Queens, NYNew York | — | $128.67 |
| Rest of New YorkNew York | — | $108.92 |
| OhioOhio | — | $110.56 |
| OklahomaOklahoma | — | $107.61 |
| Portland, OROregon | — | $116.11 |
| Rest of OregonOregon | — | $110.54 |
| Metropolitan Philadelphia, PAPennsylvania | — | $118.12 |
| Rest of PennsylvaniaPennsylvania | — | $110.13 |
| Puerto RicoPuerto Rico | — | $113.81 |
| Rhode IslandRhode Island | — | $114.99 |
| South CarolinaSouth Carolina | — | $109.42 |
| South DakotaSouth Dakota | — | $107.13 |
| TennesseeTennessee | — | $105.86 |
| Austin, TXTexas | — | $114.65 |
| Beaumont, TXTexas | — | $109.69 |
| Brazoria, TXTexas | — | $111.66 |
| Dallas, TXTexas | — | $112.66 |
| Fort Worth, TXTexas | — | $112.43 |
| Galveston, TXTexas | — | $112.20 |
| Houston, TXTexas | — | $117.51 |
| Rest of TexasTexas | — | $110.82 |
| UtahUtah | — | $110.45 |
| VirginiaVirginia | — | $110.11 |
| Virgin Islands, VIUnited States Virgin Islands | — | $113.81 |
| VermontVermont | — | $108.42 |
| Rest of WashingtonWashington | — | $114.01 |
| King County, WAWashington | — | $123.25 |
| WisconsinWisconsin | — | $105.37 |
| West VirginiaWest Virginia | — | $113.10 |
| WyomingWyoming | — | $111.04 |
31513 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 31513 rate is calculated
Each of 31513’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 · 31513
RVUs × geographic indexes × conversion factor
Work2.05
2.05 RVUs× 1.000 GPCI
Practice expense1.06
1.06 RVUs× 1.000 GPCI
Malpractice0.29
0.29 RVUs× 1.000 GPCI
Adjusted RVUs
3.4000
Conversion factor
$33.4009
Medicare rate
$113.56
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
The exact Idaho inputs and CMS source lines
PPRRVU2026_Oct_nonQPP.csv
3,580
- Code
- 31513
- Physician work
- 2.05
- Practice expense
- 1.06
- Malpractice
- 0.29
GPCI2026.csv
47
- Locality
- Idaho
- Physician work
- 1.000
- Practice expense
- 0.920
- Malpractice
- 0.473
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 2.05 | × 1.000 | 2.0500 |
| Practice expense | 1.06 | × 0.920 | 0.9752 |
| Malpractice | 0.29 | × 0.473 | 0.1372 |
| Total RVUs | 3.1624 | ||
| Conversion factor | × 33.4009 | ||
Facility rate, Idaho$105.63
Facility: (2.05 × 1 + 1.06 × 0.92 + 0.29 × 0.473) × $33.4009 = $105.63
Payment rules and modifiers for 31513
The CMS indicators that decide how 31513 is paid alongside other services.
CMS payment indicators · 31513
Vocal-fold injection, indirect approach
| 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) | 0 | Not paid without supporting documentation. |
| 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
31513 without 51 · national facility
$113.56
Vocal-fold injection, indirect approach
31513-51 · Second procedure: 50%
$56.78
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 31513 has changed in Idaho
31513 · 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 | $105.63 | RVU26D |
| 2026-07-01 | Not available in this setting | $105.63 | RVU26C |
| 2026-04-01 | Not available in this setting | $105.63 | RVU26B |
| 2026-01-01 | Not available in this setting | $105.63 | RVU26A |
| 2025-10-01 | Not available in this setting | $117.78 | RVU25D |
| 2025-07-01 | Not available in this setting | $117.78 | RVU25C |
| 2025-04-01 | Not available in this setting | $117.78 | RVU25B |
| 2025-01-01 | Not available in this setting | $117.78 | RVU25A |
| 2024-10-01 | Not available in this setting | $120.60 | RVU24D |
| 2024-07-01 | Not available in this setting | $120.60 | RVU24C |
| 2024-04-01 | Not available in this setting | $120.60 | RVU24B |
| 2024-03-09 | Not available in this setting | $120.60 | RVU24AR |
| 2024-01-01 | Not available in this setting | $118.63 | RVU24A |
| 2023-10-01 | Not available in this setting | $120.87 | RVU23D |
| 2023-07-01 | Not available in this setting | $120.87 | RVU23C |
| 2023-04-01 | Not available in this setting | $120.87 | RVU23B |
| 2023-01-01 | Not available in this setting | $120.87 | RVU23A |
| 2022-10-01 | Not available in this setting | $120.25 | RVU22D |
| 2022-07-01 | Not available in this setting | $120.25 | RVU22C |
| 2022-04-01 | Not available in this setting | $120.25 | RVU22B |
| 2022-01-01 | Not available in this setting | $120.25 | RVU22A |
| 2021-10-01 | Not available in this setting | $120.17 | RVU21D |
| 2021-07-01 | Not available in this setting | $120.17 | RVU21C |
| 2021-04-01 | Not available in this setting | $120.17 | RVU21B |
| 2021-01-01 | Not available in this setting | $120.17 | RVU21A |
| 2020-10-01 | Not available in this setting | $123.52 | RVU20D |
| 2020-07-01 | Not available in this setting | $123.52 | RVU20C |
| 2020-04-01 | Not available in this setting | $123.52 | RVU20B |
| 2020-01-01 | Not available in this setting | $123.52 | RVU20A |
| 2019-10-01 | Not available in this setting | $125.29 | RVU19D |
| 2019-07-01 | Not available in this setting | $125.29 | RVU19C |
| 2019-04-01 | Not available in this setting | $125.29 | RVU19B |
| 2019-01-01 | Not available in this setting | $125.29 | RVU19A |
| 2018-10-01 | Not available in this setting | $124.64 | RVU18D |
| 2018-07-01 | Not available in this setting | $124.64 | RVU18C |
| 2018-04-01 | Not available in this setting | $124.64 | RVU18B |
| 2018-01-01 | Not available in this setting | $124.64 | RVU18AR1 |
| 2017-10-01 | Not available in this setting | $125.94 | RVU17D |
| 2017-07-01 | Not available in this setting | $125.94 | RVU17C |
| 2017-04-01 | Not available in this setting | $125.94 | RVU17B |
| 2017-01-01 | Not available in this setting | $125.94 | RVU17A |
| 2016-10-01 | Not available in this setting | $126.30 | RVU16D |
| 2016-07-01 | Not available in this setting | $126.30 | RVU16C |
| 2016-04-01 | Not available in this setting | $126.30 | RVU16B |
| 2016-01-01 | Not available in this setting | $126.30 | RVU16A |
| 2015-10-01 | Not available in this setting | $126.80 | RVU15D |
| 2015-07-01 | Not available in this setting | $126.80 | RVU15C |
| 2015-04-01 | Not available in this setting | $126.17 | RVU15B |
| 2015-01-01 | Not available in this setting | $126.17 | RVU15A |
| 2014-10-01 | Not available in this setting | $127.27 | RVU14D |
| 2014-07-01 | Not available in this setting | $127.27 | RVU14C |
| 2014-04-01 | Not available in this setting | $127.27 | RVU14B |
| 2014-01-01 | Not available in this setting | $127.27 | RVU14A |
| 2013-10-01 | Not available in this setting | $125.05 | RVU13D |
| 2013-07-01 | Not available in this setting | $125.05 | RVU13C |
| 2013-04-01 | Not available in this setting | $125.05 | RVU13B |
| 2013-01-01 | Not available in this setting | $125.05 | RVU13AR |
Where the Idaho rate applies
Idaho is a Medicare payment area, not a city. Our Census mapping connects it to 235 cities and communities in Idaho. Some span more than one payment area; confirm with the service ZIP.
- Aberdeen
- Acequia
- Albion
- American Falls
- Ammon
- Arbon Valley
- Arco
- Arimo
31513 billing questions
When should this code be chosen instead of 31570?
Use 31513 for vocal-fold injection performed with indirect laryngoscopy. Code 31570 describes injection performed using direct laryngoscopy.
Does bilateral injection require modifier 50?
No. The CMS bilateral adjustment does not apply to this code, and modifier 50 is inappropriate for its descriptor or anatomy.
What documentation supports reporting the injection?
Document the clinical reason for treatment, the vocal-fold site, the injection performed, and the indirect laryngoscopic visualization and approach.
Can a related endoscopy be separately reported at the same session?
When related endoscopies are performed together, CMS endoscopy family pricing applies. Report the services performed, with documentation supporting each service.
Is same-day preoperative or postoperative care separately included?
The 0-day global period includes same-day preoperative and postoperative care in the procedure.
What applies if an assistant or another surgeon participates?
Assistant-at-surgery payment requires documentation of medical necessity. Co-surgeons and team surgery are not permitted.
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
Fee sheets
Put 31513 and the rest of your codes on one sheet
Your codes at your locality, with payer contracts beside Medicare.
Build my fee sheet