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Billing code 56631: Radical vulvectomyMedicare rate & RVUs

Reports radical partial removal of the vulva together with inguinofemoral lymph node dissection on one side, typically for vulvar malignancy.

CMS RVU26DEffective Oct 1, 2026109 payment localities197 Medicare services in 2024

Medicare pays $1,109.58 for 56631 nationally in a facility.

Medicare rate · 56631

Radical vulvectomy

Swap in your local Medicare rate.

Work RVUs
18.52
Total RVUs
33.22
Global days
090

National rate · 2026

$1,109.58

Facility setting, before claim adjustments.

See every locality for 56631 → · 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 56631 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 56631 covers

This operation removes part of the vulva through a radical oncologic excision and includes dissection of inguinofemoral lymph nodes on one side. Gynecologic oncologists typically perform it in an operating room for vulvar cancer when nodal surgery is part of the same operation. The code distinguishes partial vulvar removal from complete removal and specifies unilateral node dissection.

Select this code when the operative report supports both the radical partial excision and the one-sided inguinofemoral dissection; the included node procedure is not separately reported as an additional service. The descriptor is unilateral, so do not append modifier 50. CMS assigns a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. 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 50% reduction. Assistant-at-surgery and co-surgeon payment may be made; team surgery 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 56631 pays more and less

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

109 of 109 payment localities

56631 office and facility rates by payment locality
Payment localityOfficeFacility
AlabamaUnavailable$1,006.40
Alaska*Unavailable$1,381.25
ArizonaUnavailable$1,079.07
ArkansasUnavailable$993.81
AtlantaUnavailable$1,144.32
AustinUnavailable$1,116.03
BakersfieldUnavailable$1,102.59
Baltimore/Surr. CntysUnavailable$1,177.50
BeaumontUnavailable$1,067.96
BrazoriaUnavailable$1,081.56

56631 rates by state

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

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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
56631 office rate range by state
State / territoryOffice rate rangeLocalities
AKNo published base rate1
ALNo published base rate1
ARNo published base rate1
AZNo published base rate1
CANo published base rate29
CONo published base rate1
CTNo published base rate1
DCNo published base rate1
DENo published base rate1
FLNo published base rate3
GANo published base rate2
GUNo published base rate1
HINo published base rate1
IANo published base rate1
IDNo published base rate1
ILNo published base rate4
INNo published base rate1
KSNo published base rate1
KYNo published base rate1
LANo published base rate2
MANo published base rate2
MDNo published base rate3
MENo published base rate2
MINo published base rate2
MNNo published base rate1
MONo published base rate3
MSNo published base rate1
MTNo published base rate1
NCNo published base rate1
NDNo published base rate1
NENo published base rate1
NHNo published base rate1
NJNo published base rate2
NMNo published base rate1
NVNo published base rate1
NYNo published base rate5
OHNo published base rate1
OKNo published base rate1
ORNo published base rate2
PANo published base rate2
PRNo published base rate1
RINo published base rate1
SCNo published base rate1
SDNo published base rate1
TNNo published base rate1
TXNo published base rate8
UTNo published base rate1
VANo published base rate2
VINo published base rate1
VTNo published base rate1
WANo published base rate2
WINo published base rate1
WVNo published base rate1
WYNo published base rate1

How the 56631 rate is calculated

Each of 56631’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 · 56631

RVUs × geographic indexes × conversion factor

Swap in your local Medicare rate.

Work 18.52Practice expense 10.65Malpractice 4.05

33.2200 adjusted RVUs×$33.4009 conversion factor=$1,109.58

All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.

Payment rules and modifiers for 56631

56631 has a 90-day global period: related visits in that window are included in the surgery payment.

CMS payment indicators · 56631

Radical vulvectomy

RuleCMS valueWhat it means
Global period090Major surgery: the day before, the day of, and 90 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)2Paid.
Co-surgeons (62)2Permitted.
Team surgery (66)0Not permitted.
Professional/technical0Physician service: no professional/technical split.
Split (54/55/56)0.12/0.74/0.14Share of the payment for pre-op, the procedure itself, and post-op care.

Global surgery period · 56631

Radical vulvectomy

90-day global period ends

Dec 30, 2026

Covers Sep 30, 2026 through Dec 30, 2026 (92 days, including the day before surgery).

Visit on Oct 31, 2026

Day 30 of the 90-day post-op period: related follow-up care is included in the surgical payment.

  • 24 Unrelated E/M visit by the same physician
  • 79 Unrelated procedure (starts its own global period)
  • 58 Staged, more extensive, or therapy procedure that was planned
  • 78 Unplanned return to the operating room for a related complication
SurgeryVisit
Sep 23, 2026Jan 10, 2027

Pre-op dayGlobal period

What modifiers do to the payment

Modifier 51 · payment effect

With and without the modifier

56631 without 51 · national facility

$1,109.58

Radical vulvectomy

56631-51 · Second procedure: 50%

$554.79

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

56631 compared with similar codes

Compare codes

56631 vs 56630 vs 56632 vs 56634 vs 56620: national Medicare rates

Swap in your local Medicare rate.

  • 56631
    Radical vulvectomy · 18.52 wRVU
    —
  • 56630
    Vulvectomy · 14.43 wRVU
    —
  • 56632
    Radical vulvectomy · 21.31 wRVU
    —
  • 56634
    Radical vulvectomy · 20.14 wRVU
    —
  • 56620
    Vulvectomy · 7.34 wRVU
    —

How to choose

56630Vulvectomy
Use 56630 for radical partial vulvar removal without the included unilateral inguinofemoral node dissection. Use 56631 when that node dissection is part of the operation.
56632Radical vulvectomy
Both describe radical partial vulvar removal with node dissection; 56632 specifies bilateral rather than unilateral inguinofemoral nodes.
56634Radical vulvectomy
Both include unilateral inguinofemoral node dissection, but 56634 is for complete radical vulvar removal rather than partial removal.
56620Vulvectomy
56620 describes simple partial vulvar removal. 56631 is for radical partial removal combined with unilateral inguinofemoral node dissection.

Codes related to 56631

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

Codes related to 56631
CodeHow it relatesNational office range
Same family
56630VulvectomyRadical partial vulvar removal without the unilateral node dissection included in 56631.No office rate
56632Radical vulvectomyRadical partial vulvar removal with bilateral inguinofemoral node dissection.No office rate
56634Radical vulvectomyPairs complete rather than partial radical vulvar removal with unilateral node dissection.No office rate
56637Radical vulvectomyPairs complete radical vulvar removal with bilateral inguinofemoral node dissection.No office rate
Used instead
56620VulvectomySimple partial vulvar removal, rather than radical partial removal with unilateral node dissection.No office rate

56631 billing questions

How does this differ from 56630?

56630 describes radical partial vulvar removal without the inguinofemoral lymph node dissection included in 56631. Use 56631 when the same operation includes unilateral node dissection.

Can the lymph node dissection be reported separately?

The unilateral inguinofemoral dissection is included in 56631. Do not separately report that same dissection as an additional service.

Should modifier 50 be used?

No. This code describes a unilateral operation, and modifier 50 is not appropriate.

What documentation supports the code?

The operative report should establish radical partial removal of the vulva and inguinofemoral node dissection on one side. It should also identify whether the vulvar removal was partial or complete.

What postoperative care is included?

The 90-day global period includes the day-before preoperative visit and 90 days of related postoperative care.

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 56631PPRRVU2026_Oct_nonQPP.csv, line 6,415 (RVU26D)

Open CMS sourceHow we calculate rates

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