CPT 55920: Placement of Needles/Catheters to Facilitate Brachytherapy
CPT code 55920 covers placement of needles or catheters into cancerous pelvic organs or genitalia to facilitate brachytherapy, a form of internal radiotherapy that delivers radiation directly to a tumor. The code captures an important preparatory interventional procedure used across oncology and radiation oncology services to enable precise, organ‑preserving cancer treatment. Nationally, use of brachytherapy techniques influences care pathways, facility resource needs, and multidisciplinary coordination between surgical and radiation teams.
Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The analysis addresses coverage and billing considerations relevant to these major national payers and Medicare, providing context for how this preparatory procedure is recognized across public and commercial plans.
Readers will learn the clinical context and typical settings for CPT code 55920, benchmarking topics such as common sites of service and interventional role in brachytherapy workflows, and policy-relevant considerations that affect coding and payment for implant facilitation procedures. The summary highlights what facilities and clinicians should consider when documenting the procedural intent and service setting. Data not available in the input is noted where specific payer policies, taxonomies, or diagnosis mappings would normally be summarized.
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Billing Code Overview
CPT code 55920 describes placement of needles or catheters into a cancerous pelvic organ or genitalia to facilitate brachytherapy (internal radiotherapy). This procedure is performed to allow subsequent placement of radioactive seeds or sources that deliver targeted radiation directly to a tumor.
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Service type: Interventional procedure to facilitate brachytherapy
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Typical site of service: Hospital operating room, ambulatory surgery center, or procedure suite with radiation oncology and surgical support
Clinical & Coding Specifications
Clinical Context
A 64-year-old woman with biopsy-proven Stage IB2 cervical carcinoma is scheduled for interstitial brachytherapy to deliver high-dose radiation directly to the tumor bed following external beam radiotherapy. On the day of the procedure the patient presents to the ambulatory oncology procedural suite after preoperative evaluation, informed consent, and anesthesia assessment. Under monitored anesthesia care or general anesthesia, the radiation oncologist and gynecologic oncologist or brachytherapy team place transperineal needles and/or intracavitary catheters into the cervix, parametrium, and vaginal fornices using image guidance (ultrasound, CT, or fluoroscopy) to define target geometry and protect adjacent organs. The procedure facilitates subsequent placement of radioactive sources (seeds or high-dose-rate afterloading catheters) for internal radiotherapy.
Typical site of service is an outpatient ambulatory surgery center or hospital operating room with specialized brachytherapy and imaging capabilities. The clinical workflow includes preprocedure planning (simulation and imaging), intraoperative placement of needles/catheters and verification imaging, documentation of placement and number of applicators, and coordination with radiation physics for source loading and treatment planning. Postprocedure monitoring includes pain control, hemostasis assessment, and discharge instructions with follow-up for radioactive source delivery and treatment planning.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | Use when billing physician’s interpretation or professional services are reported separate from technical resources (rare for placement-only services if technical component billed by facility). |
50 | Bilateral procedure | Use if the procedure is performed bilaterally when applicable to pelvic/genital procedures requiring separate documentation of bilateral placement.
52 | Reduced services | Use when the procedure is partially reduced or not completed as documented (e.g., limited placement due to anatomy or intraoperative findings).
53 | Discontinued procedure | Use when the procedure is started but terminated due to complications or patient intolerance prior to completion of planned placement.
59 | Distinct procedural service | Use when another procedure on a separate anatomic site or a separate operative session is performed and needs to be distinguished from the brachytherapy facilitation.
62 | Two surgeons | Use when two surgeons of different specialties (e.g., gynecologic oncologist and radiation oncologist) perform distinct portions of the procedure concurrently and documentation supports co-surgery.
66 | Surgical team | Use when the procedure is performed by an organized surgical team with documented team participation.
78 | Unplanned return to OR following initial procedure for related procedure during the postoperative period | Use if the patient requires an unplanned return to the OR for revision or management related to the initial placement.
79 | Unrelated procedure during postoperative period (not in list provided but not permitted to add) | Data not available in the input.
58 | Staged or related procedure or service by same physician during postoperative period | Use when placement is part of a planned staged treatment (e.g., staged implant followed by source loading) and documentation indicates the staged nature.
XU | Unusual non-overlapping service component | Use to report distinct services when components do not overlap with another provider’s billed services (e.g., separate insertion by different clinicians with non-overlapping work).
| Taxonomy Code | Specialty | Notes |
|---|---|---|
Data not available in the input. | Data not available in the input. | Data not available in the input. |
Related Diagnoses
| ICD-10 Code | Description | Clinical Relevance |
|---|---|---|
Data not available in the input. | Data not available in the input. | Data not available in the input. |
Related CPT Codes
| CPT Code | Description | Relationship to This Procedure |
|---|---|---|
19295 | Placement of fiducial markers, breast or soft tissue (percutaneous) | Data not available in the input. |
55875 | Laparoscopic radical prostatectomy (includes robotic) | Data not available in the input.
Radiation oncology and brachytherapy-related codes | Various HDR afterloading and treatment planning codes | Data not available in the input.
Data not available in the input. | Data not available in the input. | Data not available in the input.