FeeBase
Log inGet started
Menu

CPT code 17312: Mohs surgery, additional stage, specified sites2026 Medicare rate & RVUs in Washington, DC area

Reports an additional Mohs surgery stage for a lesion on the head, neck, hands, feet, or genitalia when microscopic examination shows tumor remains.

CMS RVU26DEffective Oct 1, 2026One payment locality505.2K Medicare services in 2024

In Washington, DC area, Medicare pays $460.46 for 17312 in the office and $166.15 when it’s performed in a hospital or facility.

$460.46Office (non-facility)
$166.15Hospital or facility
+14.3%vs the national office rate ($402.81)

Check a contract rate as a % of Medicare · 17312 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 17312 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Washington, DC area
  2. What 17312 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 17312 covers

A Mohs surgeon, commonly a dermatologist, removes and maps another thin layer of tissue after the initial stage. The tissue is processed and examined microscopically so the surgeon can identify whether tumor remains at the margins and whether another stage is needed. Code 17312 is for an additional stage at the head, neck, hands, feet, or genitalia; the first stage is reported separately with the appropriate primary Mohs code. Mohs is commonly performed in an office surgical setting.

Report 17312 for each additional stage after the first, rather than for each tissue block within a stage. The operative record should identify the lesion and site, the stage sequence, tissue mapping and microscopic findings, and the reason another layer was taken. A stage may include up to five tissue blocks; additional blocks are addressed with 17315. As an add-on code, 17312 is billed only with a primary procedure and is paid within that procedure's global period.

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 Washington, DC area compares for 17312

Across 109 of 109 payment localities, the office rate for 17312 runs from $357.39 in Arkansas to $535.17 in San Benito County, CA. Washington, DC area pays $460.46. The RVUs are the same everywhere; the geographic indexes change the dollars.

17312 in Washington, DC area vs other payment areas
  1. Washington, DC area · this page$460.46
  2. Los Angeles, CA · California$455.54−$4.92
  3. Miami, FL · Florida$431.32−$29.14
  4. Chicago, IL · Illinois$419.26−$41.20
  5. Manhattan, NY · New York$462.20+$1.74
  6. Alaska · Alaska$470.12+$9.66
  7. Alabama · Alabama$362.50−$97.96

Other areas in District of Columbia first, then benchmark localities. Bars start at $0.

Every other payment area

17312 in every other Medicare payment locality
Payment localityOfficeFacility
ArkansasArkansas$357.39$142.78
ArizonaArizona$392.42$150.32
Bakersfield, CACalifornia$427.84$154.01
Chico, CACalifornia$426.82$152.99
El Centro, CACalifornia$426.87$153.05
Fresno, CACalifornia$426.82$152.99
Hanford, CACalifornia$426.82$152.99
Madera, CACalifornia$426.82$152.99

17312 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.

$357.39

$481.00

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

View every state and territory as a table
17312 office rate range by state
State / territoryOffice rate rangeLocalities
AK$470.121
AL$362.501
AR$357.391
AZ$392.421
CA$426.82–$535.1729
CO$419.881
CT$429.171
DC$460.461
DE$398.831
FL$395.85–$431.323
GA$374.23–$409.902
GU$437.121
HI$437.121
IA$372.011
ID$374.271
IL$384.29–$419.754
IN$376.401
KS$370.061
KY$370.331
LA$369.66–$387.542
MA$417.36–$461.152
MD$406.40–$460.463
ME$375.91–$396.192
MI$379.51–$400.432
MN$403.301
MO$363.30–$389.193
MS$360.431
MT$402.791
NC$379.791
ND$396.271
NE$374.071
NH$413.091
NJ$434.34–$455.822
NM$381.441
NV$401.261
NY$385.33–$472.875
OH$378.171
OK$369.941
OR$398.40–$433.262
PA$378.90–$418.532
PR$405.781
RI$413.051
SC$379.561
SD$395.501
TN$371.851
TX$376.45–$418.268
UT$384.641
VA$394.74–$460.462
VI$405.781
VT$394.531
WA$416.64–$470.702
WI$383.251
WV$370.331
WY$399.951

See 17312 in every payment locality

How the 17312 rate is calculated

Each of 17312’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 · 17312

RVUs × geographic indexes × conversion factor

Office or facility?

Work3.22

3.22 RVUs× 1.000 GPCI

Practice expense8.51

8.51 RVUs× 1.000 GPCI

Malpractice0.33

0.33 RVUs× 1.000 GPCI

Adjusted RVUs

12.0600

Conversion factor

$33.4009

Medicare rate

$402.81

Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.

The exact Washington, DC area inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

1,647

Code
17312
Physician work
3.22
Practice expense
8.51
Malpractice
0.33

GPCI2026.csv

39

Locality
Washington, DC area
Physician work
1.054
Practice expense
1.178
Malpractice
1.113
Office calculation for 17312 in Washington, DC area
ComponentRVULocality factorAdjusted
Physician work3.22× 1.0543.3939
Practice expense8.51× 1.17810.0248
Malpractice0.33× 1.1130.3673
Total RVUs13.7859
Conversion factor× 33.4009

Office rate, Washington, DC area$460.46

Office: (3.22 × 1.054 + 8.51 × 1.178 + 0.33 × 1.113) × $33.4009 = $460.46

Facility: (3.22 × 1.054 + 1.03 × 1.178 + 0.33 × 1.113) × $33.4009 = $166.15

Open 17312 in the RVU calculator

Payment rules and modifiers for 17312

The CMS indicators that decide how 17312 is paid alongside other services.

CMS payment indicators · 17312

Mohs surgery, additional stage, specified sites

RuleCMS valueWhat it means
Global periodZZZAdd-on code: falls within the primary procedure’s global period.
Multiple procedures0No multiple-procedure reduction.
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.

Codes related to 17312

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

Codes related to 17312
CodeHow it relatesOffice range, Washington, DC area
Add-on codes
17311Mohs surgery, first stage, head/neck/hands/feet/genitaliaThe first Mohs stage at the specified sites is paired with additional-stage code 17312 when needed.$759.41
17315Mohs block, beyond first five blocksAdditional tissue blocks beyond five in a stage may be reported with the applicable Mohs stage code.$89.58
Used instead
17314Mohs stage, additional stage, trunk or limbReports an additional Mohs stage on the trunk, arms, or legs instead of the sites covered by 17312.$441.08

How 17312 has changed in Washington, DC area

17312 · Office / nonfacility

$460.46

Effective 2026-10-01

The base rate is $1.04 lower than on 2025-10-01, moving from $461.50 to $460.46 (0.2%).

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

    $461.50changed to$460.46

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 3.30 changed to 3.22
    • Practice expense RVU 8.70 changed to 8.51
    • Malpractice RVU 0.35 changed to 0.33
    • Work GPCI 1.057 changed to 1.054
    • Practice expense GPCI 1.192 changed to 1.178
    • Malpractice GPCI 1.168 changed to 1.113

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $477.30changed to$461.50

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 8.76 changed to 8.70

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $469.51changed to$477.30

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $490.19changed to$469.51

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 8.69 changed to 8.76
    • Work GPCI 1.056 changed to 1.057
    • Practice expense GPCI 1.214 changed to 1.192
    • Malpractice GPCI 1.231 changed to 1.168

  5. January 1, 2023

    RVU23A

    $497.84changed to$490.19

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 8.49 changed to 8.69
    • Malpractice RVU 0.32 changed to 0.35
    • Work GPCI 1.054 changed to 1.056
    • Practice expense GPCI 1.236 changed to 1.214
    • Malpractice GPCI 1.294 changed to 1.231

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $498.07changed to$497.84

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 8.41 changed to 8.49
    • Malpractice RVU 0.31 changed to 0.32

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $478.08changed to$498.07

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 7.69 changed to 8.41
    • Work GPCI 1.049 changed to 1.054
    • Practice expense GPCI 1.221 changed to 1.236
    • Malpractice GPCI 1.277 changed to 1.294

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $470.95changed to$478.08

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 7.47 changed to 7.69
    • Malpractice RVU 0.49 changed to 0.31
    • Work GPCI 1.045 changed to 1.049
    • Practice expense GPCI 1.205 changed to 1.221
    • Malpractice GPCI 1.261 changed to 1.277

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $462.21changed to$470.95

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 7.27 changed to 7.47
    • Malpractice RVU 0.50 changed to 0.49

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $460.02changed to$462.21

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 7.24 changed to 7.27
    • Work GPCI 1.048 changed to 1.045
    • Malpractice GPCI 1.271 changed to 1.261

    Held through RVU18B, RVU18C, RVU18D.

  11. January 1, 2017

    RVU17A

    $457.73changed to$460.02

    • Conversion factor 35.8043 changed to 35.8887
    • Practice expense RVU 7.20 changed to 7.24
    • Work GPCI 1.051 changed to 1.048
    • Malpractice GPCI 1.280 changed to 1.271

    Held through RVU17B, RVU17C, RVU17D.

  12. January 1, 2016

    RVU16A

    $457.08changed to$457.73

    • Conversion factor 35.9335 changed to 35.8043
    • Malpractice RVU 0.45 changed to 0.50

    Held through RVU16B, RVU16C, RVU16D.

  13. July 1, 2015

    RVU15C

    $454.81changed to$457.08

    • Conversion factor 35.7547 changed to 35.9335

    Held through RVU15D.

  14. January 1, 2015

    RVU15A

    $444.53changed to$454.81

    • Conversion factor 35.8228 changed to 35.7547
    • Practice expense RVU 7.01 changed to 7.20
    • Malpractice RVU 0.43 changed to 0.45
    • Work GPCI 1.050 changed to 1.051
    • Practice expense GPCI 1.202 changed to 1.205
    • Malpractice GPCI 1.205 changed to 1.280

    Held through RVU15B.

  15. January 1, 2014

    RVU14A

    $458.71changed to$444.53

    • Conversion factor 34.0230 changed to 35.8228
    • Practice expense RVU 7.94 changed to 7.01
    • Malpractice RVU 0.45 changed to 0.43
    • Work GPCI 1.049 changed to 1.050
    • Practice expense GPCI 1.198 changed to 1.202
    • Malpractice GPCI 1.130 changed to 1.205

    Held through RVU14B, RVU14C, RVU14D.

  16. January 1, 2013

    RVU13AR

    Earliest loaded release: $458.71

    Held through RVU13B, RVU13C, RVU13D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$460.46$166.15RVU26D
2026-07-01$460.46$166.15RVU26C
2026-04-01$460.46$166.15RVU26B
2026-01-01$460.46$166.15RVU26A
2025-10-01$461.50$203.17RVU25D
2025-07-01$461.50$203.17RVU25C
2025-04-01$461.50$203.17RVU25B
2025-01-01$461.50$203.17RVU25A
2024-10-01$477.30$207.09RVU24D
2024-07-01$477.30$207.09RVU24C
2024-04-01$477.30$207.09RVU24B
2024-03-09$477.30$207.09RVU24AR
2024-01-01$469.51$203.71RVU24A
2023-10-01$490.19$212.91RVU23D
2023-07-01$490.19$212.91RVU23C
2023-04-01$490.19$212.91RVU23B
2023-01-01$490.19$212.91RVU23A
2022-10-01$497.84$215.11RVU22D
2022-07-01$497.84$215.11RVU22C
2022-04-01$497.84$215.11RVU22B
2022-01-01$497.84$215.11RVU22A
2021-10-01$498.07$216.87RVU21D
2021-07-01$498.07$216.87RVU21C
2021-04-01$498.07$216.87RVU21B
2021-01-01$498.07$216.87RVU21A
2020-10-01$478.08$224.71RVU20D
2020-07-01$478.08$224.71RVU20C
2020-04-01$478.08$224.71RVU20B
2020-01-01$478.08$224.71RVU20A
2019-10-01$470.95$232.10RVU19D
2019-07-01$470.95$232.10RVU19C
2019-04-01$470.95$232.10RVU19B
2019-01-01$470.95$232.10RVU19A
2018-10-01$462.21$234.04RVU18D
2018-07-01$462.21$234.04RVU18C
2018-04-01$462.21$234.04RVU18B
2018-01-01$462.21$234.04RVU18AR1
2017-10-01$460.02$234.28RVU17D
2017-07-01$460.02$234.28RVU17C
2017-04-01$460.02$234.28RVU17B
2017-01-01$460.02$234.28RVU17A
2016-10-01$457.73$233.38RVU16D
2016-07-01$457.73$233.38RVU16C
2016-04-01$457.73$233.38RVU16B
2016-01-01$457.73$233.38RVU16A
2015-10-01$457.08$232.36RVU15D
2015-07-01$457.08$232.36RVU15C
2015-04-01$454.81$231.20RVU15B
2015-01-01$454.81$231.20RVU15A
2014-10-01$444.53$227.08RVU14D
2014-07-01$444.53$227.08RVU14C
2014-04-01$444.53$227.08RVU14B
2014-01-01$444.53$227.08RVU14A
2013-10-01$458.71$223.53RVU13D
2013-07-01$458.71$223.53RVU13C
2013-04-01$458.71$223.53RVU13B
2013-01-01$458.71$223.53RVU13AR

Price 17312 for an earlier date of service

Where the Washington, DC area rate applies

Washington, DC area is a Medicare payment area, not a city. Our Census mapping connects it to 1 cities and communities in District of Columbia. Some span more than one payment area; confirm with the service ZIP.

  • Washington

Browse all communities in District of Columbia

17312 billing questions

When should 17312 be used instead of 17311?

Use 17311 for the first Mohs stage on the head, neck, hands, feet, or genitalia. Report 17312 for each additional stage at one of those sites.

Is 17312 billed per tissue block?

No. It represents an additional stage, which can include up to five tissue blocks. Code 17315 addresses additional blocks beyond that amount.

Can 17312 be reported by itself?

No. It is an add-on code and must be billed with the primary Mohs procedure for the lesion.

Which additional-stage code applies to a lesion on the trunk or an extremity?

Use 17314 for an additional stage on the trunk, arms, or legs. Code 17312 is for additional stages on the head, neck, hands, feet, or genitalia.

What documentation supports an additional-stage unit?

The operative record should show the lesion site, the additional stage performed, the tissue map and microscopic findings, and the reason the surgeon continued.

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 17312PPRRVU2026_Oct_nonQPP.csv, line 1,647 (RVU26D)
Geographic factors for Washington, DC areaGPCI2026.csv, line 39 (RVU26D)

Open CMS sourceHow we calculate rates

Did this answer your question about what 17312 pays in Washington, DC area?

Tell us what you were actually trying to work out. We’ll answer you directly, or build the page that does.

Fee sheets

Put 17312 and the rest of your codes on one sheet

Your codes at your locality, with payer contracts beside Medicare.

Build my fee sheet