Billing code 57420: Vaginal colposcopyMedicare rate & RVUs

Colposcopic inspection of vaginal mucosa without tissue sampling, typically used to evaluate abnormal vaginal cytology or a visible vaginal lesion.

CMS RVU26DEffective Oct 1, 2026109 payment localities3.8K Medicare services in 2024

Medicare pays $137.61 for 57420 nationally in the office and $81.16 in a hospital or facility. Local office rates run $122.11–$172.06.

Medicare rate · 57420

Vaginal colposcopy

Work RVUs
1.56
Total RVUs
4.12
Global days
000

National rate · 2026

$137.61

Office setting, before claim adjustments.

See every locality for 57420 →Billed by an NP, PA or therapist? →

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 10 sections
  1. Medicare rate
  2. What 57420 covers
  3. By payment locality
  4. Rate map
  5. How it’s calculated
  6. Payment rules
  7. Similar codes
  8. Related codes
  9. Billing questions
  10. Sources

What 57420 covers

Code 57420 represents magnified inspection of vaginal mucosa with a colposcope, without tissue sampling. Gynecologists commonly perform it in an office or outpatient setting to assess abnormal vaginal cytology or a visible lesion, including possible vaginal intraepithelial neoplasia. Document the indication, areas examined, adequacy of visualization, and findings.

Report this code when the colposcopic assessment is directed to the vagina and no vaginal biopsy is taken. If vaginal tissue is biopsied during colposcopy, use 57421. CMS assigns a 0-day global period, so same-day preoperative and postoperative care is included. When multiple procedures are performed in one session, the highest-valued procedure is paid in full and other procedures are reduced to 50%. Modifier 50 is inappropriate; assistant-at-surgery payment is restricted, and co-surgeon and team-surgery payment is 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.

Where 57420 pays more and less

The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.

109 payment localities

$122.11 to $172.06

$122.11$147.09$172.06
One dot per payment locality, office / nonfacility. Hover a dot to see the locality; select it to open that rate.

109 of 109 payment localities

57420 office and facility rates by payment locality
Payment localityOfficeFacility
Alabama$123.83$74.44
Alaska*$164.07$103.96
Arizona$133.83$79.13
Arkansas$122.11$73.62
Atlanta$140.99$83.64
Austin$140.95$81.23
Bakersfield$141.93$80.06
Baltimore/Surr. Cntys$146.33$85.76
Beaumont$130.11$78.74
Brazoria$135.14$79.21

57420 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.

$122.11

$164.07

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

View every state and territory as a table
57420 office rate range by state
State / territoryOffice rate rangeLocalities
AK$164.071
AL$123.831
AR$122.111
AZ$133.831
CA$141.09–$172.0629
CO$140.871
CT$146.571
DC$154.991
DE$135.951
FL$139.33–$156.033
GA$131.38–$140.992
GU$143.731
HI$143.731
IA$125.151
ID$126.291
IL$136.69–$151.334
IN$126.951
KS$125.391
KY$128.381
LA$128.51–$134.522
MA$140.41–$153.292
MD$138.22–$154.993
ME$127.79–$133.232
MI$132.34–$141.842
MN$132.751
MO$126.93–$134.013
MS$124.501
MT$137.591
NC$128.941
ND$131.661
NE$125.571
NH$139.451
NJ$147.61–$153.652
NM$133.361
NV$136.011
NY$130.86–$163.805
OH$131.121
OK$127.301
OR$134.33–$144.262
PA$130.87–$143.582
PR$138.291
RI$140.011
SC$130.371
SD$130.961
TN$126.101
TX$130.11–$141.278
UT$132.061
VA$133.38–$154.992
VI$138.291
VT$131.911
WA$139.89–$155.522
WI$127.511
WV$132.041
WY$135.011

How the 57420 rate is calculated

Each of 57420’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 · 57420

RVUs × geographic indexes × conversion factor

Work1.56

1.56 RVUs× 1.000 GPCI

Practice expense2.26

2.26 RVUs× 1.000 GPCI

Malpractice0.30

0.30 RVUs× 1.000 GPCI

Adjusted RVUs

4.1200

Conversion factor

$33.4009

Medicare rate

$137.61

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

Payment rules and modifiers for 57420

The CMS indicators that decide how 57420 is paid alongside other services.

CMS payment indicators · 57420

Vaginal colposcopy

RuleCMS valueWhat it means
Global period000Same-day global: pre- and post-op care on the day of the procedure is 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.

What modifiers do to the payment

Modifier 51 · payment effect

With and without the modifier

57420 without 51 · national office

$137.61

Vaginal colposcopy

57420-51 · Second procedure: 50%

$68.81

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

57420 compared with similar codes

Compare codes · National

5 codes, side by side

  • 57420

    Vaginal colposcopy1.56 wRVU

    $137.61

  • 57421

    Colposcopy2.15 wRVU

    $182.03+$44.42

  • 57452

    Colposcopy1.46 wRVU

    $125.59−$12.02

  • 57455

    Cervical biopsy1.94 wRVU

    $160.99+$23.38

  • 57410

    Pelvic examination1.71 wRVU

    Not priced

How to choose

57421Colposcopy
57420 is vaginal colposcopy without vaginal biopsy. Use 57421 when vaginal tissue is biopsied during the examination.
57452Colposcopy
57420 is directed to vaginal assessment; 57452 is colposcopy directed to the cervix, including adjacent areas.
57455Cervical biopsy
57455 is cervical colposcopy with biopsy. It is not the vaginal colposcopy code for an examination without vaginal sampling.
57410Pelvic examination
57410 describes a pelvic examination, while 57420 involves colposcopic inspection of vaginal mucosa.

57420 billing questions

When should 57420 be reported instead of 57421?

Use 57420 for vaginal colposcopy without vaginal tissue sampling. When a vaginal biopsy is performed during the colposcopy, report 57421.

How does 57420 differ from cervical colposcopy?

57420 describes colposcopic assessment directed to the vagina. For an examination directed to the cervix, consider the cervical colposcopy code that matches the services performed.

Is a vaginal biopsy separately reported with 57420?

When vaginal tissue is biopsied during colposcopy, 57421 describes the vaginal colposcopy with biopsy; do not report 57420 for that same service.

Can modifier 50 be used for bilateral vaginal colposcopy?

No. CMS identifies bilateral adjustment as inappropriate for this code, so modifier 50 is not appropriate.

What same-day payment rules affect 57420?

The 0-day global period includes same-day preoperative and postoperative care. In a session with multiple procedures, the highest-valued procedure is paid in full and the others are reduced to 50%; assistant-at-surgery payment is restricted, and 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
RVUs for 57420PPRRVU2026_Oct_nonQPP.csv, line 6,486 (RVU26D)

Open CMS sourceHow we calculate rates

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