$594.68–$876.89
17311 reports the first Mohs stage for the head, neck, hands, feet, or genitalia; 17312 reports each subsequent stage at those sites.
On this page
CMS RVU26D · Effective 2026-10-01
17312 Mohs surgery Medicare reimbursement rates
Reports an additional Mohs surgery stage for a lesion on the head, neck, hands, feet, or genitalia when microscopic examination shows tumor remains. Compare 17312 office and facility rates across CMS payment localities.
Amounts below use the non-QP conversion factor for participating physicians. These are base physician payments before claim-level adjustments, not patient costs or total hospital charges.
What does Medicare pay for 17312?
The service location and office or facility setting determine which base rate applies. These are the supported base rates for the 109 payment areas shown below, using the same CMS release.
Office / nonfacility
$357.39–$535.17
109 of 109 localities have a supported rate.
Lowest: Arkansas
Highest: San Jose-Sunnyvale-Santa Clara (San Benito Cnty)
A spread of $177.78 per service.
These are locality ranges, not averages or address-specific quotes. A facility-setting amount covers the physician service; it does not include a hospital’s separate bill. Choose a locality below to inspect its calculation, compare other payment areas, or price a percentage of Medicare.
Where 17312 pays more and less
109 payment localities
$357.39 to $535.17
Dermatologic surgery
About 17312: Mohs surgery additional stage, specified sites
Reports an additional Mohs surgery stage for a lesion on the head, neck, hands, feet, or genitalia when microscopic examination shows tumor remains.
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.
CMS billing rules for 17312
- Global period
- Add-on code: billed only together with a primary procedure and paid within that procedure's global period.
Where the value comes from
- Work RVU3.22 · 27%
- Practice expense (office) RVU8.51 · 71%
- Malpractice RVU0.33 · 3%
505.2K
Medicare services in 2024 · #232 by national volume
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.
17312 compared with similar codes
Office rate ranges across all CMS payment localities, from the same CMS release.
$341.80–$513.99
Both report an additional Mohs stage, but 17314 is for the trunk, arms, or legs; 17312 is for the head, neck, hands, feet, or genitalia.
$71.20–$102.60
17312 counts an additional stage. Code 17315 counts additional tissue blocks beyond five within a stage.
See how rates vary across the country
17312 · Office / nonfacility · Non-QP. Choose a state to explore its payment localities. A range means the amount varies within that state.
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 all state and territory rates as a table
| State / territory | Rate range | Localities |
|---|---|---|
| AK | $470.12 | 1 |
| AL | $362.50 | 1 |
| AR | $357.39 | 1 |
| AZ | $392.42 | 1 |
| CA | $426.82–$535.17 | 29 |
| CO | $419.88 | 1 |
| CT | $429.17 | 1 |
| DC | $460.46 | 1 |
| DE | $398.83 | 1 |
| FL | $395.85–$431.32 | 3 |
| GA | $374.23–$409.90 | 2 |
| GU | $437.12 | 1 |
| HI | $437.12 | 1 |
| IA | $372.01 | 1 |
| ID | $374.27 | 1 |
| IL | $384.29–$419.75 | 4 |
| IN | $376.40 | 1 |
| KS | $370.06 | 1 |
| KY | $370.33 | 1 |
| LA | $369.66–$387.54 | 2 |
| MA | $417.36–$461.15 | 2 |
| MD | $406.40–$460.46 | 3 |
| ME | $375.91–$396.19 | 2 |
| MI | $379.51–$400.43 | 2 |
| MN | $403.30 | 1 |
| MO | $363.30–$389.19 | 3 |
| MS | $360.43 | 1 |
| MT | $402.79 | 1 |
| NC | $379.79 | 1 |
| ND | $396.27 | 1 |
| NE | $374.07 | 1 |
| NH | $413.09 | 1 |
| NJ | $434.34–$455.82 | 2 |
| NM | $381.44 | 1 |
| NV | $401.26 | 1 |
| NY | $385.33–$472.87 | 5 |
| OH | $378.17 | 1 |
| OK | $369.94 | 1 |
| OR | $398.40–$433.26 | 2 |
| PA | $378.90–$418.53 | 2 |
| PR | $405.78 | 1 |
| RI | $413.05 | 1 |
| SC | $379.56 | 1 |
| SD | $395.50 | 1 |
| TN | $371.85 | 1 |
| TX | $376.45–$418.26 | 8 |
| UT | $384.64 | 1 |
| VA | $394.74–$460.46 | 2 |
| VI | $405.78 | 1 |
| VT | $394.53 | 1 |
| WA | $416.64–$470.70 | 2 |
| WI | $383.25 | 1 |
| WV | $370.33 | 1 |
| WY | $399.95 | 1 |
Compare 17312 by payment locality
Find the payment area for your service address, then open its rate page for calculation inputs, release history and the percentage-of-Medicare tool. A city may cross payment-area boundaries; the ZIP lookup above helps resolve the location.
109 of 109 payment localities
| Payment locality | Office | Facility |
|---|---|---|
| Alabama | Office $362.50 | Facility $143.89 |
| Alaska* | Office $470.12 | Facility $204.04 |
| Arizona | Office $392.42 | Facility $150.32 |
| Arkansas | Office $357.39 | Facility $142.78 |
| Atlanta | Office $409.90 | Facility $156.06 |
| Austin | Office $418.26 | Facility $153.93 |
| Bakersfield | Office $427.84 | Facility $154.01 |
| Baltimore/Surr. Cntys | Office $427.90 | Facility $159.82 |
| Beaumont | Office $376.45 | Facility $149.10 |
| Brazoria | Office $398.69 | Facility $151.10 |
| Chicago | Office $419.26 | Facility $168.17 |
| Chico | Office $426.82 | Facility $152.99 |
| Colorado | Office $419.88 | Facility $154.05 |
| Connecticut | Office $429.17 | Facility $160.09 |
| Dallas | Office $401.08 | Facility $152.24 |
| Dc + Md/Va Suburbs | Office $460.46 | Facility $166.15 |
| Delaware | Office $398.83 | Facility $151.99 |
| Detroit | Office $400.43 | Facility $159.33 |
| East St. Louis | Office $391.25 | Facility $161.40 |
| El Centro | Office $426.87 | Facility $153.05 |
| Fort Lauderdale | Office $415.42 | Facility $162.33 |
| Fort Worth | Office $398.38 | Facility $152.04 |
| Fresno | Office $426.82 | Facility $152.99 |
| Galveston | Office $399.79 | Facility $151.70 |
| Hanford-Corcoran | Office $426.82 | Facility $152.99 |
| Hawaii, Guam | Office $437.12 | Facility $153.05 |
| Houston | Office $405.83 | Facility $157.74 |
| Idaho | Office $374.27 | Facility $144.42 |
| Indiana | Office $376.40 | Facility $144.80 |
| Iowa | Office $372.01 | Facility $143.41 |
| Kansas | Office $370.06 | Facility $144.21 |
| Kentucky | Office $370.33 | Facility $148.22 |
| Los Angeles-Long Beach-Anaheim (Los Angeles/Orange Cnty) | Office $455.54 | Facility $159.98 |
| Madera | Office $426.82 | Facility $152.99 |
| Manhattan | Office $462.20 | Facility $171.89 |
| Merced | Office $426.82 | Facility $152.99 |
| Metropolitan Boston | Office $461.15 | Facility $162.85 |
| Metropolitan Kansas City | Office $385.22 | Facility $150.62 |
| Metropolitan Philadelphia | Office $418.53 | Facility $158.45 |
| Metropolitan St. Louis | Office $389.19 | Facility $151.35 |
| Miami | Office $431.32 | Facility $171.24 |
| Minnesota | Office $403.30 | Facility $146.21 |
| Mississippi | Office $360.43 | Facility $145.32 |
| Modesto | Office $426.82 | Facility $152.99 |
| Montana** | Office $402.79 | Facility $152.95 |
| Napa | Office $494.56 | Facility $165.27 |
| Nebraska | Office $374.07 | Facility $143.47 |
| Nevada** | Office $401.26 | Facility $151.17 |
| New Hampshire | Office $413.09 | Facility $153.01 |
| New Mexico | Office $381.44 | Facility $152.34 |
| New Orleans | Office $387.54 | Facility $152.45 |
| North Carolina | Office $379.79 | Facility $146.69 |
| North Dakota** | Office $396.27 | Facility $146.43 |
| Northern Nj | Office $455.82 | Facility $166.01 |
| Nyc Suburbs/Long Island | Office $472.87 | Facility $175.81 |
| Ohio | Office $378.17 | Facility $150.07 |
| Oklahoma | Office $369.94 | Facility $146.84 |
| Oxnard-Thousand Oaks-Ventura | Office $453.40 | Facility $158.09 |
| Portland | Office $433.26 | Facility $155.69 |
| Poughkpsie/N Nyc Suburbs | Office $436.97 | Facility $163.40 |
| Puerto Rico | Office $405.78 | Facility $153.19 |
| Queens | Office $466.30 | Facility $170.99 |
| Redding | Office $426.82 | Facility $152.99 |
| Rest Of California | Office $426.82 | Facility $152.99 |
| Rest Of Florida | Office $395.85 | Facility $157.01 |
| Rest Of Georgia | Office $374.23 | Facility $151.38 |
| Rest Of Illinois | Office $384.29 | Facility $156.19 |
| Rest Of Louisiana | Office $369.66 | Facility $148.56 |
| Rest Of Maine | Office $375.91 | Facility $146.06 |
| Rest Of Maryland | Office $406.40 | Facility $153.56 |
| Rest Of Massachusetts | Office $417.36 | Facility $154.28 |
| Rest Of Michigan | Office $379.51 | Facility $151.40 |
| Rest Of Missouri | Office $363.30 | Facility $147.94 |
| Rest Of New Jersey | Office $434.34 | Facility $161.51 |
| Rest Of New York | Office $385.33 | Facility $147.98 |
| Rest Of Oregon | Office $398.40 | Facility $149.56 |
| Rest Of Pennsylvania | Office $378.90 | Facility $149.55 |
| Rest Of Texas | Office $387.25 | Facility $150.15 |
| Rest Of Washington | Office $416.64 | Facility $153.56 |
| Rhode Island | Office $413.05 | Facility $154.96 |
| Riverside-San Bernardino-Ontario | Office $430.42 | Facility $156.59 |
| Sacramento-Roseville-Folsom | Office $447.90 | Facility $157.34 |
| Salinas | Office $446.23 | Facility $156.67 |
| San Diego-Chula Vista-Carlsbad | Office $456.70 | Facility $157.90 |
| San Francisco-Oakland-Berkeley (Marin Cnty) | Office $523.61 | Facility $171.34 |
| San Francisco-Oakland-Berkeley (San Francisco/San Mateo/Alameda/Contra Costa Cnty) | Office $523.23 | Facility $170.96 |
| San Jose-Sunnyvale-Santa Clara (San Benito Cnty) | Office $535.17 | Facility $174.90 |
| San Jose-Sunnyvale-Santa Clara (Santa Clara Cnty) | Office $533.63 | Facility $173.37 |
| San Luis Obispo-Paso Robles | Office $439.04 | Facility $154.47 |
| Santa Cruz-Watsonville | Office $461.07 | Facility $157.52 |
| Santa Maria-Santa Barbara | Office $447.90 | Facility $156.58 |
| Santa Rosa-Petaluma | Office $465.73 | Facility $158.93 |
| Seattle (King Cnty) | Office $470.70 | Facility $164.15 |
| South Carolina | Office $379.56 | Facility $148.71 |
| South Dakota** | Office $395.50 | Facility $145.66 |
| Southern Maine | Office $396.19 | Facility $148.60 |
| Stockton | Office $426.82 | Facility $152.99 |
| Suburban Chicago | Office $419.75 | Facility $163.17 |
| Tennessee | Office $371.85 | Facility $144.74 |
| Utah | Office $384.64 | Facility $149.79 |
| Vallejo | Office $494.02 | Facility $164.73 |
| Vermont | Office $394.53 | Facility $147.19 |
| Virgin Islands | Office $405.78 | Facility $153.19 |
| Virginia | Office $394.74 | Facility $149.15 |
| Visalia | Office $426.82 | Facility $152.99 |
| West Virginia | Office $370.33 | Facility $153.22 |
| Wisconsin | Office $383.25 | Facility $143.90 |
| Wyoming** | Office $399.95 | Facility $150.11 |
| Yuba City | Office $426.82 | Facility $152.99 |
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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 indices and the applicable conversion factor. Unavailable or separately priced services are labeled rather than assigned a made-up amount.
Source: RVU26D. Effective 2026-10-01 through the day before 2027-01-01.
1,64417284,,Dstr mal ls f/e/e/n/l/m3.1-4,A,,3.12,4.69,,1.50,,0.33,8.14,4.95,0,010,0.10,0.80,0.10,2,0,1,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
1,64517286,,Dstr mal ls f/e/e/n/l/m>4.0,A,,4.37,5.71,,1.89,,0.46,10.54,6.72,0,010,0.10,0.80,0.10,2,0,1,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
1,64617311,,Mohs 1 stage h/n/hf/g,A,,6.05,13.33,,1.95,,0.59,19.97,8.59,0,000,0.00,0.00,0.00,2,0,1,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
1,64717312,,Mohs addl stage,A,,3.22,8.51,,1.03,,0.33,12.06,4.58,0,ZZZ,0.00,0.00,0.00,0,0,1,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
1,64817313,,Mohs 1 stage t/a/l,A,,5.42,12.80,,1.76,,0.53,18.75,7.71,0,000,0.00,0.00,0.00,2,0,1,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
1,64917314,,Mohs addl stage t/a/l,A,,2.98,8.27,,0.91,,0.29,11.54,4.18,0,ZZZ,0.00,0.00,0.00,0,0,1,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
1,65017315,,Mohs surg addl block,A,,0.85,1.45,,0.28,,0.07,2.37,1.20,0,ZZZ,0.00,0.00,0.00,0,0,1,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00