Place ndl musc/tis for rt

CPT 20555 covers the placement of needles or other markers into muscle or soft tissue to guide radiation therapy treatment. These markers help radiation oncologists target tumors precisely while avoiding damage to healthy tissue.

Showing rates for

National Average

Base Medicare rate

$329.93

This calculator gives a typical-case estimate using standard Medicare modifier rules. Actual payment depends on payer policies, documentation, code-specific CMS status indicators, and locality. Verify before billing.

RVU breakdown

Work RVU

PE RVU (NF)

3.71

MP RVU

0.49

Total RVU

10.2

Conversion factor: 32.3465 · Source: CMS MPFS RVU25A · Confidence: High

NCCI bundling edits

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Billing tips

Always bill imaging guidance separately using appropriate codes (77002 for fluoroscopy, 76942 for ultrasound, 77012 for CT) as these are not included in 20555
Impact: Additional $50-150 reimbursement per imaging code when properly documented and billed separately
Document the exact number of needles/markers placed, anatomical location, and medical necessity for radiotherapy treatment planning
Impact: Prevents denials for insufficient documentation which account for approximately 35% of initial denials for this code
Bill on the date of needle placement, not the date of subsequent radiation treatment; this is a separate billable service from the radiation therapy itself
Impact: Ensures timely filing and prevents bundling denials with radiation treatment codes (77xxx series)
Verify that the physician performing the procedure personally documents the procedure note; dictated or signed operative notes are required
Impact: Lack of physician signature is a common audit finding resulting in 100% recoupment ($329.93 per case)
Do not bill 20555 with brachytherapy application codes (77750-77799) for the same session; use appropriate brachytherapy codes instead
Impact: Prevents unbundling denials and potential fraud investigation; CCI edits will deny 20555 as included
Check payer-specific policies for frequency limits; some payers limit to one placement per radiation treatment course
Impact: Medical necessity appeals for additional placements have 60-70% success rate when properly documented with clinical justification

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Frequently asked questions

What is the Medicare reimbursement for CPT code 20555 in 2025?

The 2025 Medicare national average reimbursement for CPT 20555 is $329.93 for both facility and non-facility settings. This rate is based on 10.2 total RVUs (6.0 work RVU, 3.71 practice expense RVU, and 0.49 malpractice RVU) multiplied by the 2025 conversion factor of 32.3465.

Can CPT 20555 be billed with radiation therapy codes on the same day?

Generally no, CPT 20555 should not be billed on the same date as radiation therapy treatment delivery codes (77401-77425). Needle placement is typically performed as a separate session prior to starting the radiation treatment course. If billed on the same day, documentation must clearly show distinct, separately identifiable services with modifier 59, though many payers will still deny as bundled.

Is imaging guidance included in CPT 20555 or billed separately?

Imaging guidance is NOT included in CPT 20555 and should be billed separately using the appropriate imaging code: 77002 for fluoroscopic guidance, 76942 for ultrasound guidance, or 77012 for CT guidance. Documentation must support the medical necessity and separate performance of the imaging service.

How many times can CPT 20555 be billed per patient?

CPT 20555 can typically be billed once per radiation treatment course. Additional placements may be reimbursed if medically necessary due to marker migration, treatment plan changes, or inadequate initial placement, but require strong documentation of medical necessity. Some payers have specific frequency limits in their local coverage determinations.

What documentation is required to bill CPT 20555?

Required documentation includes: medical necessity statement linking to radiation therapy plan, specific anatomical location(s) of needle/marker placement, number of devices placed, imaging modality used for guidance, approach used (percutaneous or open), sterile technique confirmation, patient tolerance, complications if any, and physician signature. The procedure note should be detailed enough to support the 6.0 work RVU assigned to this code.

What is the difference between CPT 20555 and brachytherapy application codes?

CPT 20555 is for placement of needles or markers used to guide external beam radiation therapy or for interstitial application placement. Brachytherapy application codes (77750-77799) include the placement of applicators AND the radiation source loading and are more comprehensive services. Do not bill 20555 when performing brachytherapy; use the appropriate brachytherapy code instead to avoid unbundling violations.

Which medical specialties commonly bill CPT 20555?

CPT 20555 is most commonly billed by radiation oncologists for fiducial marker placement for image-guided radiation therapy. Interventional radiologists, urologists (for prostate brachytherapy setup), surgical oncologists, and gynecologic oncologists also bill this code when placing radiotherapy guidance devices. The procedure must be performed by a credentialed physician or qualified healthcare professional.