Billing code 55845: Radical prostatectomyMedicare rate & RVUs in Alaska

Reports open retropubic radical prostate removal with bilateral dissection of the external iliac, hypogastric, and obturator lymph-node basins.

CMS RVU26DEffective Oct 1, 20261 payment locality492 Medicare services in 2024

CMS doesn’t publish an office rate for 55845 in Alaska.

—Office (non-facility)
$1,590.33Hospital 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 55845 for the payment locality that covers the ZIP.

On this page 9 sections
  1. Rate in Alaska
  2. What 55845 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 55845 covers

A urologist uses an open retropubic approach to remove the prostate for cancer and dissect pelvic lymph nodes on both sides, including the external iliac, hypogastric, and obturator basins. The code fits an operation that includes this extensive nodal dissection, rather than prostate removal alone or a less extensive node dissection. These procedures are generally performed in a hospital operating room.

Report the code when the operative note supports the retropubic approach, radical prostate removal, bilateral dissection, and the specified nodal basins. The bilateral work is built into the code; modifier 50 does not increase payment. The day-before preoperative visit and 90 days of related postoperative care are included in the global period. When multiple procedures are performed in the same session, the highest-valued procedure is paid in full and others are subject to the standard 50% reduction. Assistant-at-surgery payment may be available; co-surgeon payment requires supporting documentation, and 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.

55845 in Alaska*

55845 office and facility rates by payment locality
Payment localityOfficeFacility
Alaska*Unavailable$1,590.33

How the 55845 rate is calculated

Each of 55845’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 · 55845

RVUs × geographic indexes × conversion factor

Swap in your local Medicare rate.

Work 24.55Practice expense 8.49Malpractice 3.17

36.2100 adjusted RVUs×$33.4009 conversion factor=$1,209.45

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

Payment rules and modifiers for 55845

55845 has a 90-day global period: related visits in that window are included in the surgery payment.

CMS payment indicators · 55845

Radical prostatectomy

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)2Already bilateral by definition: paid once at 100%.
Assistant at surgery (80/81/82/AS)2Paid.
Co-surgeons (62)1Permitted with supporting documentation.
Team surgery (66)0Not permitted.
Professional/technical0Physician service: no professional/technical split.
Split (54/55/56)0.10/0.80/0.10Share of the payment for pre-op, the procedure itself, and post-op care.

Global surgery period · 55845

Radical prostatectomy

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

55845 without 51 · national facility

$1,209.45

Radical prostatectomy

55845-51 · Second procedure: 50%

$604.73

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

55845 compared with similar codes

Compare codes

55845 vs 55840 vs 55842 vs 55815 vs 55866: national Medicare rates

Swap in your local Medicare rate.

  • 55845
    Radical prostatectomy · 24.55 wRVU
    —
  • 55840
    Radical prostatectomy · 20.83 wRVU
    —
  • 55842
    Radical prostatectomy · 20.83 wRVU
    —
  • 55815
    Radical prostatectomy · 32.13 wRVU
    —
  • 55866
    Prostatectomy · 21.9 wRVU
    —

How to choose

55840Radical prostatectomy
Both describe open retropubic radical prostate removal, but 55840 does not include the extensive bilateral pelvic node dissection represented by 55845.
55842Radical prostatectomy
Use 55842 for a more limited bilateral pelvic node dissection. Use 55845 when the documented dissection includes the external iliac, hypogastric, and obturator basins.
55815Radical prostatectomy
This is the perineal approach with extensive bilateral pelvic node dissection; 55845 is the retropubic approach.
55866Prostatectomy
This code is for laparoscopic radical prostatectomy, including robotic assistance; 55845 describes an open retropubic operation.

55845 billing questions

How does this differ from 55842?

55845 is for the more extensive bilateral nodal dissection that includes the external iliac, hypogastric, and obturator basins. Use 55842 when the documented bilateral pelvic dissection is more limited.

Should modifier 50 be added for the bilateral dissection?

No. The code is priced for bilateral work, and modifier 50 does not increase payment.

Can the lymph-node dissection be billed separately?

The bilateral dissection of the specified pelvic basins is included in this procedure. The operative note should establish the extent of nodal work supporting this code.

What postoperative care is included?

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

Can an assistant or co-surgeon be reported?

Assistant-at-surgery payment may be made. Co-surgeon payment requires supporting documentation, and team-surgery payment is not permitted for this code.

How is this distinguished from 55866?

55845 describes an open retropubic operation. Code 55866 is for a laparoscopic radical prostatectomy, including when performed with robotic assistance.

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 55845PPRRVU2026_Oct_nonQPP.csv, line 6,382 (RVU26D)
Geographic factors for Alaska*GPCI2026.csv, line 5 (RVU26D)

Open CMS sourceHow we calculate rates

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