Billing code 11450: Hidradenitis excisionMedicare rate & RVUs in Texas
Reports excision of diseased skin and underlying tissue for axillary hidradenitis when the wound is closed with a simple or intermediate repair.
Medicare pays $429.65–$478.01 for 11450 in the office in Texas, from Beaumont to Austin. Which amount applies depends on the service address.
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 9 sections
What 11450 covers
This service removes chronically affected skin and subcutaneous tissue in the axilla for hidradenitis, which can involve recurrent abscesses, draining openings, and sinus tracts. A surgeon, often a dermatologist, general surgeon, or plastic surgeon, may perform the excision in an office procedure room or operating room. The code distinguishes axillary disease treated with a simple or intermediate repair from axillary excision requiring complex repair.
Report the service for the axillary site and repair level documented in the operative note; lesion diameter is not the selection basis for this code. Document the involved area, diseased tissue removed, and closure performed. Medicare 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. Bilateral reporting with modifier 50 is paid at 150%. Assistant-at-surgery payment is statutorily restricted; co-surgeons and team surgery 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 11450 pays more and less in Texas
The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.
8 payment localities
$429.65 to $478.01
8 of 8 payment localities
| Payment locality | Office | Facility |
|---|---|---|
| Austin | $478.01 | $259.62 |
| Beaumont | $429.65 | $241.81 |
| Brazoria | $453.82 | $249.26 |
| Dallas | $457.47 | $251.87 |
| Fort Worth | $454.46 | $250.93 |
| Galveston | $455.64 | $250.67 |
| Houston | $468.82 | $263.85 |
| Rest Of Texas | $441.98 | $246.09 |
How the 11450 rate is calculated
Each of 11450’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 · 11450
RVUs × geographic indexes × conversion factor
Swap in your local Medicare rate.
Work 3.14Practice expense 9.95Malpractice 0.72
All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.
Payment rules and modifiers for 11450
11450 has a 90-day global period: related visits in that window are included in the surgery payment.
CMS payment indicators · 11450
Hidradenitis excision
| Rule | CMS value | What it means |
|---|---|---|
| Global period | 090 | Major surgery: the day before, the day of, and 90 days after are included. |
| Multiple procedures | 2 | Standard reduction: highest-valued procedure at 100%, others at 50%. |
| Bilateral (modifier 50) | 1 | Bilateral with modifier 50 pays 150% of the fee schedule amount. |
| Assistant at surgery (80/81/82/AS) | 1 | Not paid (statutory restriction). |
| Co-surgeons (62) | 0 | Not permitted. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 0 | Physician service: no professional/technical split. |
| Split (54/55/56) | 0.10/0.71/0.19 | Share of the payment for pre-op, the procedure itself, and post-op care. |
Global surgery period · 11450
Hidradenitis excision
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.
Pre-op dayGlobal period
What modifiers do to the payment
Modifier 50 · payment effect
With and without the modifier
11450 without 50 · national office
$461.27
Hidradenitis excision
11450-50 · Bilateral: 150%
$691.91
Both sides on one line with modifier 50 are paid at 150% of the fee schedule amount (subject to multiple-procedure rules with other procedures).
11450 compared with similar codes
Compare codes
11450 vs 11451 vs 11462 vs 11470: national Medicare rates
Swap in your local Medicare rate.
How to choose
- 11451Axillary hidradenitis excision
- Use 11451 for axillary hidradenitis excision with complex repair. This code applies when the closure is simple or intermediate.
- 11462Hidradenitis excision
- Use 11462 for hidradenitis excision at the inguinal site with simple or intermediate repair; 11450 is for the axilla.
- 11470Hidradenitis excision
- Use 11470 for hidradenitis excision at the perianal, perineal, or umbilical site with simple or intermediate repair; 11450 is for the axilla.
11450 billing questions
How is this code distinguished from 11451?
Both apply to axillary hidradenitis excision. Choose 11450 when the documented closure is simple or intermediate; 11451 is for complex repair.
Can the closure be billed separately?
The simple or intermediate repair is included in this excision service. The code selection accounts for that repair level.
Is lesion size used to select 11450?
No. This code is selected by the axillary site and simple or intermediate repair, not by a lesion-diameter range.
How should bilateral axillary excisions be reported?
Use modifier 50 for bilateral reporting. CMS pays the bilateral procedure at 150%.
What documentation supports reporting 11450?
The operative note should identify axillary hidradenitis, the diseased tissue excised, and the repair performed, supporting a simple or intermediate closure rather than a complex one.
Is related postoperative care separately 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
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