Billing code 41006: Mouth lesion drainageMedicare rate & RVUs in Pennsylvania

Reports surgical drainage of a floor-of-mouth abscess, cyst, or hematoma reached through an external approach rather than through the mouth.

CMS RVU26DEffective Oct 1, 20262 payment localities665 Medicare services in 2024

Medicare pays $329.69–$362.77 for 41006 in the office in Pennsylvania, from Rest Of Pennsylvania to Metropolitan Philadelphia. Which amount applies depends on the service address.

$329.69–$362.77Office (non-facility)
$207.04–$223.69Hospital or facility

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 41006 for the payment locality that covers the ZIP.

On this page 9 sections
  1. Rate in Pennsylvania
  2. What 41006 covers
  3. By payment locality
  4. How it’s calculated
  5. Payment rules
  6. Similar codes
  7. Related codes
  8. Billing questions
  9. Sources

What 41006 covers

This service is drainage of a collection in the floor of the mouth through an incision made externally, such as through the skin beneath the jaw. The surgeon opens the collection and evacuates its contents. Oral and maxillofacial surgeons and otolaryngologists may perform it in an operating room or, when clinically appropriate, another surgical setting. The external route distinguishes this service from drainage approached through the oral cavity.

Select the code based on the documented site and operative route; the record should identify the floor-of-mouth collection and the external approach. This major surgery code includes 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% multiple-procedure reduction. Modifier 50 is inappropriate for this service. Assistant-at-surgery payment requires documented medical necessity; co-surgeon and team-surgery billing are 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 41006 pays more and less in Pennsylvania

41006 office and facility rates by payment locality
Payment localityOfficeFacility
Metropolitan Philadelphia$362.77$223.69
Rest Of Pennsylvania$329.69$207.04

How the 41006 rate is calculated

Each of 41006’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 · 41006

RVUs × geographic indexes × conversion factor

Swap in your local Medicare rate.

Work 3.26Practice expense 6.81Malpractice 0.38

10.4500 adjusted RVUs×$33.4009 conversion factor=$349.04

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

Payment rules and modifiers for 41006

41006 has a 90-day global period: related visits in that window are included in the surgery payment.

CMS payment indicators · 41006

Mouth lesion drainage

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)0Not paid without supporting documentation.
Co-surgeons (62)0Not permitted.
Team surgery (66)0Not permitted.
Professional/technical0Physician service: no professional/technical split.
Split (54/55/56)0.09/0.81/0.10Share of the payment for pre-op, the procedure itself, and post-op care.

Global surgery period · 41006

Mouth lesion drainage

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

41006 without 51 · national office

$349.04

Mouth lesion drainage

41006-51 · Second procedure: 50%

$174.52

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

41006 compared with similar codes

Compare codes

41006 vs 41005 vs 41016 vs 41008: national Medicare rates

Swap in your local Medicare rate.

  • 41006
    Mouth lesion drainage · 3.26 wRVU
    $349.04
  • 41005
    Oral drainage · 1.28 wRVU
    $231.13−$117.91
  • 41016
    Abscess drainage · 4.09 wRVU
    $483.65+$134.61
  • 41008
    Tongue drainage · 3.37 wRVU
    $414.51+$65.47

How to choose

41005Oral drainage
Both involve floor-of-mouth drainage; 41005 is selected for an intraoral route, while 41006 is selected for an external route.
41016Abscess drainage
41016 identifies drainage of a sublingual, submandibular, or submental space collection through an external approach. Use 41006 when the documented site is the floor of the mouth.
41008Tongue drainage
41008 is external drainage of a collection in the vestibule of the mouth, not the floor of the mouth.

41006 billing questions

How does this differ from 41005?

Both address drainage in the floor of the mouth. Use 41006 for an external approach and 41005 when the collection is drained through the oral cavity.

When is 41006 preferred over 41016?

41006 is for a floor-of-mouth collection reached externally. 41016 describes external drainage of a sublingual, submandibular, or submental space collection; choose by the documented anatomic space.

Can modifier 50 be reported?

No. Modifier 50 is inappropriate for this code’s descriptor and anatomy.

What postoperative care is included?

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

When may an assistant-at-surgery be paid?

CMS payment for an assistant at surgery requires documentation of medical necessity. Co-surgeons and team surgery are not permitted for this code.

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 41006PPRRVU2026_Oct_nonQPP.csv, line 4,884 (RVU26D)

Open CMS sourceHow we calculate rates

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