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CPT code 11770: Pilonidal excision, simple excision2026 Medicare rate & RVUs in Mississippi

Reports surgical removal of a simple pilonidal cyst or sinus in the sacrococcygeal cleft, rather than drainage or more extensive excision.

CMS RVU26DEffective Oct 1, 2026One payment locality265 Medicare services in 2024

In Mississippi, Medicare pays $345.43 for 11770 in the office and $165.41 when it’s performed in a hospital or facility.

$345.43Office (non-facility)
$165.41Hospital or facility
−11.5%vs the national office rate ($390.12)

Check a contract rate as a % of Medicare · 11770 nationwide

Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.

We’ll open 11770 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Mississippi
  2. What 11770 covers
  3. Compared with other areas
  4. Rate map
  5. How it’s calculated
  6. Payment rules
  7. Related codes
  8. Rate history
  9. Where it applies
  10. Billing questions
  11. Sources

What 11770 covers

A surgeon excises a simple pilonidal cyst or sinus in the cleft near the tailbone, removing the lesion and involved tissue or tract. The procedure is commonly performed in an outpatient operating room, though a suitable simple case may be treated in an office setting. The operative report should show that excision was performed and describe the disease and extent of the work.

Choose this code for the simple-excision level, not for drainage alone or a more extensive or complicated excision. Document the operative findings and the basis for the selected level. CMS assigns a 10-day global period, so related postoperative visits during that period are included. When multiple procedures are performed in the same session, the highest-valued procedure is paid in full and other procedures are subject to the standard multiple-procedure reduction. Bilateral adjustment is inappropriate. CMS does not pay an assistant at surgery for this code and does not permit co-surgeon or team-surgery billing.

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 11770

Across 109 of 109 payment localities, the office rate for 11770 runs from $340.30 in Arkansas to $515.38 in San Benito County, CA. Mississippi pays $345.43. The RVUs are the same everywhere; the geographic indexes change the dollars.

11770 in Mississippi vs other payment areas
  1. Mississippi · this page$345.43
  2. Los Angeles, CA · California$438.66+$93.23
  3. Washington, DC area · District of Columbia$447.51+$102.08
  4. Miami, FL · Florida$432.89+$87.46
  5. Chicago, IL · Illinois$418.53+$73.10
  6. Manhattan, NY · New York$453.48+$108.05
  7. Alaska · Alaska$442.64+$97.21

Other areas in Mississippi first, then benchmark localities. Bars start at $0.

Every other payment area

11770 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama$345.88$162.92
ArkansasArkansas$340.30$160.70
ArizonaArizona$378.41$175.80
Bakersfield, CACalifornia$410.99$181.83
Chico, CACalifornia$409.33$180.17
El Centro, CACalifornia$409.43$180.27
Fresno, CACalifornia$409.33$180.17
Hanford, CACalifornia$409.33$180.17

11770 rates by state

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

MEWIVTNHMTNDMNMINYMARIWAIDWYSDIAILINOHPANJCTORNVUTCONEMOKYWVVAMDDECAAZNMKSOKARTNNCSCDCTXLAMSALGAFLAKHI

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.

$340.30

$462.36

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

View every state and territory as a table
11770 office rate range by state
State / territoryOffice rate rangeLocalities
AK$442.641
AL$345.881
AR$340.301
AZ$378.411
CA$409.33–$515.3829
CO$404.831
CT$417.941
DC$447.511
DE$385.101
FL$387.91–$432.893
GA$363.44–$399.012
GU$420.351
HI$420.351
IA$353.761
ID$356.731
IL$376.95–$418.534
IN$358.971
KS$352.831
KY$356.951
LA$356.69–$376.182
MA$402.38–$446.382
MD$392.72–$447.513
ME$359.76–$380.062
MI$368.11–$394.192
MN$383.991
MO$350.51–$376.573
MS$345.431
MT$390.081
NC$363.791
ND$378.021
NE$355.641
NH$399.191
NJ$421.62–$442.282
NM$370.711
NV$387.001
NY$369.91–$466.655
OH$365.641
OK$355.271
OR$382.94–$417.732
PA$365.78–$407.222
PR$392.931
RI$398.911
SC$365.541
SD$376.591
TN$354.911
TX$363.18–$404.408
UT$371.051
VA$379.32–$447.512
VI$392.931
VT$377.231
WA$401.39–$455.012
WI$364.131
WV$361.801
WY$384.831

See 11770 in every payment locality

How the 11770 rate is calculated

Each of 11770’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 · 11770

RVUs × geographic indexes × conversion factor

Office or facility?

Work2.59

2.59 RVUs× 1.000 GPCI

Practice expense8.48

8.48 RVUs× 1.000 GPCI

Malpractice0.61

0.61 RVUs× 1.000 GPCI

Adjusted RVUs

11.6800

Conversion factor

$33.4009

Medicare rate

$390.12

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

1,372

Code
11770
Physician work
2.59
Practice expense
8.48
Malpractice
0.61

GPCI2026.csv

67

Locality
Mississippi
Physician work
1.000
Practice expense
0.861
Malpractice
0.739
Office calculation for 11770 in Mississippi
ComponentRVULocality factorAdjusted
Physician work2.59× 1.0002.5900
Practice expense8.48× 0.8617.3013
Malpractice0.61× 0.7390.4508
Total RVUs10.3421
Conversion factor× 33.4009

Office rate, Mississippi$345.43

Office: (2.59 × 1 + 8.48 × 0.861 + 0.61 × 0.739) × $33.4009 = $345.43

Facility: (2.59 × 1 + 2.22 × 0.861 + 0.61 × 0.739) × $33.4009 = $165.41

Open 11770 in the RVU calculator

Payment rules and modifiers for 11770

11770 has a 10-day global period: related visits in that window are included in the surgery payment.

CMS payment indicators · 11770

Pilonidal excision, simple excision

RuleCMS valueWhat it means
Global period010Minor procedure: the day of the procedure plus 10 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)1Not paid (statutory restriction).
Co-surgeons (62)0Not permitted.
Team surgery (66)0Not permitted.
Professional/technical0Physician service: no professional/technical split.
Split (54/55/56)0.10/0.80/0.10Share of the payment for pre-op, the procedure itself, and post-op care.

Global surgery period · 11770

Pilonidal excision, simple excision

10-day global period ends

Oct 11, 2026

Covers Oct 1, 2026 through Oct 11, 2026 (11 days).

Visit on Oct 31, 2026

After the global period ends: visits and procedures are billed normally.

SurgeryVisit
Sep 28, 2026Oct 14, 2026

What modifiers do to the payment

Modifier 51 · payment effect

With and without the modifier

11770 without 51 · national office

$390.12

Pilonidal excision, simple excision

11770-51 · Second procedure: 50%

$195.06

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

Codes related to 11770

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

Codes related to 11770
CodeHow it relatesOffice range, Mississippi
Same family
11771Pilonidal excision, extensive diseaseSibling code for pilonidal excision at the extensive level.$617.91
11772Pilonidal excision, complicated diseaseSibling code for complicated pilonidal excision.$755.96
Used instead
10080Pilonidal drainage, simple incision and drainageFor simple pilonidal cyst drainage rather than excision.$236.79
10081Pilonidal drainage, complicated incision and drainageFor complicated pilonidal cyst drainage rather than excision.$336.64

How 11770 has changed in Mississippi

11770 · Office / nonfacility

$345.43

Effective 2026-10-01

The base rate is $46.88 higher than on 2025-10-01, moving from $298.55 to $345.43 (15.7%).

It is unchanged from the immediately preceding available release, effective 2026-07-01.

Base rate by release · bars start at $0 · select a bar to compare

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

  1. January 1, 2026

    RVU26A

    $298.55changed to$345.43

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 2.66 changed to 2.59
    • Practice expense RVU 7.17 changed to 8.48
    • Malpractice RVU 0.60 changed to 0.61
    • Practice expense GPCI 0.852 changed to 0.861
    • Malpractice GPCI 0.768 changed to 0.739

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $314.04changed to$298.55

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 7.41 changed to 7.17

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $308.91changed to$314.04

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $318.94changed to$308.91

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 7.47 changed to 7.41
    • Malpractice RVU 0.59 changed to 0.60
    • Practice expense GPCI 0.847 changed to 0.852
    • Malpractice GPCI 0.720 changed to 0.768

  5. January 1, 2023

    RVU23A

    $329.19changed to$318.94

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 7.66 changed to 7.47
    • Malpractice RVU 0.60 changed to 0.59
    • Practice expense GPCI 0.842 changed to 0.847
    • Malpractice GPCI 0.671 changed to 0.720

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $315.23changed to$329.19

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 7.10 changed to 7.66
    • Malpractice RVU 0.59 changed to 0.60

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $282.62changed to$315.23

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 5.70 changed to 7.10
    • Malpractice RVU 0.56 changed to 0.59
    • Practice expense GPCI 0.856 changed to 0.842
    • Malpractice GPCI 0.521 changed to 0.671

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $256.34changed to$282.62

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 4.88 changed to 5.70
    • Practice expense GPCI 0.870 changed to 0.856
    • Malpractice GPCI 0.370 changed to 0.521

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $249.48changed to$256.34

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 4.67 changed to 4.88

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $249.90changed to$249.48

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 4.64 changed to 4.67
    • Malpractice RVU 0.57 changed to 0.56
    • Practice expense GPCI 0.867 changed to 0.870
    • Malpractice GPCI 0.492 changed to 0.370

    Held through RVU18B, RVU18C, RVU18D.

  11. January 1, 2017

    RVU17A

    $251.91changed to$249.90

    • Conversion factor 35.8043 changed to 35.8887
    • Practice expense RVU 4.66 changed to 4.64
    • Practice expense GPCI 0.864 changed to 0.867
    • Malpractice GPCI 0.613 changed to 0.492

    Held through RVU17B, RVU17C, RVU17D.

  12. January 1, 2016

    RVU16A

    $251.44changed to$251.91

    • Conversion factor 35.9335 changed to 35.8043
    • Practice expense RVU 4.63 changed to 4.66
    • Malpractice RVU 0.55 changed to 0.57

    Held through RVU16B, RVU16C, RVU16D.

  13. July 1, 2015

    RVU15C

    $250.19changed to$251.44

    • Conversion factor 35.7547 changed to 35.9335

    Held through RVU15D.

  14. January 1, 2015

    RVU15A

    $251.06changed to$250.19

    • Conversion factor 35.8228 changed to 35.7547
    • Malpractice RVU 0.50 changed to 0.55
    • Practice expense GPCI 0.865 changed to 0.864
    • Malpractice GPCI 0.687 changed to 0.613

    Held through RVU15B.

  15. January 1, 2014

    RVU14A

    $256.88changed to$251.06

    • Conversion factor 34.0230 changed to 35.8228
    • Practice expense RVU 5.19 changed to 4.63
    • Malpractice RVU 0.52 changed to 0.50
    • Practice expense GPCI 0.866 changed to 0.865
    • Malpractice GPCI 0.761 changed to 0.687

    Held through RVU14B, RVU14C, RVU14D.

  16. January 1, 2013

    RVU13AR

    Earliest loaded release: $256.88

    Held through RVU13B, RVU13C, RVU13D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$345.43$165.41RVU26D
2026-07-01$345.43$165.41RVU26C
2026-04-01$345.43$165.41RVU26B
2026-01-01$345.43$165.41RVU26A
2025-10-01$298.55$165.44RVU25D
2025-07-01$298.55$165.44RVU25C
2025-04-01$298.55$165.44RVU25B
2025-01-01$298.55$165.44RVU25A
2024-10-01$314.04$170.25RVU24D
2024-07-01$314.04$170.25RVU24C
2024-04-01$314.04$170.25RVU24B
2024-03-09$314.04$170.25RVU24AR
2024-01-01$308.91$167.47RVU24A
2023-10-01$318.94$170.55RVU23D
2023-07-01$318.94$170.55RVU23C
2023-04-01$318.94$170.55RVU23B
2023-01-01$318.94$170.55RVU23A
2022-10-01$329.19$172.13RVU22D
2022-07-01$329.19$172.13RVU22C
2022-04-01$329.19$172.13RVU22B
2022-01-01$329.19$172.13RVU22A
2021-10-01$315.23$172.44RVU21D
2021-07-01$315.23$172.44RVU21C
2021-04-01$315.23$172.44RVU21B
2021-01-01$315.23$172.44RVU21A
2020-10-01$282.62$172.02RVU20D
2020-07-01$282.62$172.02RVU20C
2020-04-01$282.62$172.02RVU20B
2020-01-01$282.62$172.02RVU20A
2019-10-01$256.34$168.86RVU19D
2019-07-01$256.34$168.86RVU19C
2019-04-01$256.34$168.86RVU19B
2019-01-01$256.34$168.86RVU19A
2018-10-01$249.48$168.68RVU18D
2018-07-01$249.48$168.68RVU18C
2018-04-01$249.48$168.68RVU18B
2018-01-01$249.48$168.68RVU18AR1
2017-10-01$249.90$170.25RVU17D
2017-07-01$249.90$170.25RVU17C
2017-04-01$249.90$170.25RVU17B
2017-01-01$249.90$170.25RVU17A
2016-10-01$251.91$172.40RVU16D
2016-07-01$251.91$172.40RVU16C
2016-04-01$251.91$172.40RVU16B
2016-01-01$251.91$172.40RVU16A
2015-10-01$251.44$172.59RVU15D
2015-07-01$251.44$172.59RVU15C
2015-04-01$250.19$171.73RVU15B
2015-01-01$250.19$171.73RVU15A
2014-10-01$251.06$171.74RVU14D
2014-07-01$251.06$171.74RVU14C
2014-04-01$251.06$171.74RVU14B
2014-01-01$251.06$171.74RVU14A
2013-10-01$256.88$172.03RVU13D
2013-07-01$256.88$172.03RVU13C
2013-04-01$256.88$172.03RVU13B
2013-01-01$256.88$172.03RVU13AR

Price 11770 for an earlier date of service

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

Browse all communities in Mississippi

11770 billing questions

How does 11770 differ from 11771 or 11772?

Use 11770 for simple excision. The higher family codes describe more extensive or complicated excision; the operative findings and work performed should support the selected level.

Can 11770 be reported for draining a pilonidal abscess?

No. When the service is incision and drainage rather than excision, consider the pilonidal drainage codes 10080 or 10081, as appropriate to the procedure.

Are related postoperative visits separately billable?

Related postoperative visits during the 10-day global period are included in the procedure payment.

Can modifier 50 be used for pilonidal excision?

No. CMS identifies bilateral adjustment as inappropriate for this code and its anatomy.

Can an assistant or co-surgeon be billed with 11770?

CMS does not pay an assistant at surgery for this code and does not permit co-surgeon or team-surgery billing.

What happens if another procedure is performed in the same session?

The highest-valued procedure is paid in full, while other procedures are subject to the standard multiple-procedure reduction.

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 11770PPRRVU2026_Oct_nonQPP.csv, line 1,372 (RVU26D)
Geographic factors for MississippiGPCI2026.csv, line 67 (RVU26D)

Open CMS sourceHow we calculate rates

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