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Official Description

Placement of interstitial device(s) for radiation therapy guidance (eg, fiducial markers, dosimeter), percutaneous, intra-thoracic, single or multiple

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The CPT® Code 32553 refers to the placement of interstitial device(s) for radiation therapy guidance, specifically fiducial markers or dosimeters, through a percutaneous approach within the intra-thoracic region. Fiducial markers, often made of gold, are small seeds that are strategically implanted in or around soft tissue tumors located in the thorax. This procedure is typically performed prior to stereotactic radiosurgical treatment, which is a precise form of radiation therapy used to target thoracic tumors, most commonly malignant neoplasms of the lung. The primary purpose of these fiducial markers is to serve as anatomical landmarks, enabling healthcare providers to accurately define the tumor and its borders during treatment. The placement of these markers is crucial for ensuring that the radiation is delivered precisely to the tumor while minimizing exposure to surrounding healthy tissues. Prior to the placement of fiducial markers, imaging studies, which are reported separately, are conducted to locate the tumor and determine the optimal approach and puncture site for the procedure. The process involves cleansing the skin, administering a local anesthetic, and utilizing CT guidance to accurately position the markers within the thoracic cavity.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The placement of interstitial device(s) for radiation therapy guidance, as described by CPT® Code 32553, is indicated for the following conditions:

  • Malignant Neoplasms of the Lung - This procedure is primarily performed for patients with lung tumors that require precise targeting for radiation therapy.
  • Soft Tissue Tumors in the Thorax - Fiducial markers are used to assist in the treatment of various soft tissue tumors located within the thoracic cavity.

2. Procedure

The procedure for the placement of fiducial markers involves several critical steps to ensure accuracy and safety:

  • Step 1: Imaging Guidance - Prior to the placement of fiducial markers, imaging studies, such as CT scans, are performed to locate the tumor and identify the best approach for the procedure. This imaging is essential for determining the precise location for the insertion of the markers.
  • Step 2: Skin Preparation - The skin over the targeted area is thoroughly cleansed to reduce the risk of infection. This step is crucial for maintaining a sterile environment during the procedure.
  • Step 3: Anesthesia Administration - A local anesthetic is administered to the patient to minimize discomfort during the procedure. This ensures that the patient remains comfortable while the fiducial markers are being placed.
  • Step 4: Marker Placement - A sterile gold fiducial marker is loaded into a specially designed thin-walled biopsy needle. The needle is then carefully passed through the skin and directed to the predetermined location in or around the lesion. Once in position, the fiducial marker is deployed.
  • Step 5: Repetition of Placement - The process of loading the marker into the needle and deploying it is repeated until all necessary fiducial markers have been successfully placed in the thoracic region.

3. Post-Procedure

After the placement of fiducial markers, patients may be monitored for any immediate complications or adverse reactions. It is important to ensure that the insertion sites are clean and free from infection. Patients may be advised on post-procedure care, including any restrictions on physical activity and signs of potential complications to watch for, such as increased pain or swelling at the insertion sites. Follow-up imaging may be required to confirm the proper placement of the fiducial markers and to plan for subsequent radiation therapy treatments.

Short Descr INS MARK THOR FOR RT PERQ
Medium Descr PLMT NTRSTL DEV RADJ THX GID PRQ INTRATHRC 1/MLT
Long Descr Placement of interstitial device(s) for radiation therapy guidance (eg, fiducial markers, dosimeter), percutaneous, intra-thoracic, single or multiple
Status Code Active Code
Global Days 000 - Endoscopic or Minor Procedure
PC/TC Indicator (26, TC) 0 - Physician Service Code
Multiple Procedures (51) 2 - Standard payment adjustment rules for multiple procedures apply.
Bilateral Surgery (50) 0 - 150% payment adjustment for bilateral procedures does NOT apply.
Physician Supervisions 09 - Concept does not apply.
Assistant Surgeon (80, 82) 2 - Payment restriction for assistants at surgery does not apply to this procedure...
Co-Surgeons (62) 0 - Co-surgeons not permitted for this procedure.
Team Surgery (66) 0 - Team surgeons not permitted for this procedure.
Diagnostic Imaging Family 99 - Concept Does Not Apply
APC Status Indicator Procedure or Service, Not Discounted when Multiple
ASC Payment Indicator Device-intensive procedure added to ASC list in CY 2008 or later; paid at adjusted rate.
Type of Service (TOS) 2 - Surgery
Berenson-Eggers TOS (BETOS) P7B - Oncology - other
MUE 1
CCS Clinical Classification 41 - Other non-OR therapeutic procedures on respiratory system

This is a primary code that can be used with these additional add-on codes.

77002 CPT Add On MPFS Status: Active Code APC N ASC N1 Physician Quality Reporting CPT Assistant Article Fluoroscopic guidance for needle placement (eg, biopsy, aspiration, injection, localization device) (List separately in addition to code for primary procedure)
51 Multiple procedures: when multiple procedures, other than e/m services, physical medicine and rehabilitation services or provision of supplies (eg, vaccines), are performed at the same session by the same individual, the primary procedure or service may be reported as listed. the additional procedure(s) or service(s) may be identified by appending modifier 51 to the additional procedure or service code(s). note: this modifier should not be appended to designated "add-on" codes (see appendix d).
LT Left side (used to identify procedures performed on the left side of the body)
X5 Diagnostic services requested by another clinician: for reporting services by a clinician who furnishes care to the patient only as requested by another clinician or subsequent and related services requested by another clinician; this modifier is reported for patient relationships that may not be adequately captured by the above alternative categories; reporting clinician service examples include but are not limited to, the radiologist's interpretation of an imaging study requested by another clinician
RT Right side (used to identify procedures performed on the right side of the body)
GC This service has been performed in part by a resident under the direction of a teaching physician
53 Discontinued procedure: under certain circumstances, the physician or other qualified health care professional may elect to terminate a surgical or diagnostic procedure. due to extenuating circumstances or those that threaten the well being of the patient, it may be necessary to indicate that a surgical or diagnostic procedure was started but discontinued. this circumstance may be reported by adding modifier 53 to the code reported by the individual for the discontinued procedure. note: this modifier is not used to report the elective cancellation of a procedure prior to the patient's anesthesia induction and/or surgical preparation in the operating suite. for outpatient hospital/ambulatory surgery center (asc) reporting of a previously scheduled procedure/service that is partially reduced or cancelled as a result of extenuating circumstances or those that threaten the well being of the patient prior to or after administration of anesthesia, see modifiers 73 and 74 (see modifiers approved for asc hospital outpatient use).
58 Staged or related procedure or service by the same physician or other qualified health care professional during the postoperative period: it may be necessary to indicate that the performance of a procedure or service during the postoperative period was: (a) planned or anticipated (staged); (b) more extensive than the original procedure; or (c) for therapy following a surgical procedure. this circumstance may be reported by adding modifier 58 to the staged or related procedure. note: for treatment of a problem that requires a return to the operating/procedure room (eg, unanticipated clinical condition), see modifier 78.
59 Distinct procedural service: under certain circumstances, it may be necessary to indicate that a procedure or service was distinct or independent from other non-e/m services performed on the same day. modifier 59 is used to identify procedures/services, other than e/m services, that are not normally reported together, but are appropriate under the circumstances. documentation must support a different session, different procedure or surgery, different site or organ system, separate incision/excision, separate lesion, or separate injury (or area of injury in extensive injuries) not ordinarily encountered or performed on the same day by the same individual. however, when another already established modifier is appropriate it should be used rather than modifier 59. only if no more descriptive modifier is available, and the use of modifier 59 best explains the circumstances, should modifier 59 be used. note: modifier 59 should not be appended to an e/m service. to report a separate and distinct e/m service with a non-e/m service performed on the same date, see modifier 25.
78 Unplanned return to the operating/procedure room by the same physician or other qualified health care professional following initial procedure for a related procedure during the postoperative period: it may be necessary to indicate that another procedure was performed during the postoperative period of the initial procedure (unplanned procedure following initial procedure). when this procedure is related to the first, and requires the use of an operating/procedure room, it may be reported by adding modifier 78 to the related procedure. (for repeat procedures, see modifier 76.)
79 Unrelated procedure or service by the same physician or other qualified health care professional during the postoperative period: the individual may need to indicate that the performance of a procedure or service during the postoperative period was unrelated to the original procedure. this circumstance may be reported by using modifier 79. (for repeat procedures on the same day, see modifier 76.)
80 Assistant surgeon: surgical assistant services may be identified by adding modifier 80 to the usual procedure number(s).
AS Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery
GW Service not related to the hospice patient's terminal condition
X4 Episodic/focused services: for reporting services by clinicians who provide focused care on particular types of treatment limited to a defined period and circumstance; the patient has a problem, acute or chronic, that will be treated with surgery, radiation, or some other type of generally time-limited intervention; reporting clinician service examples include but are not limited to, the orthopedic surgeon performing a knee replacement and seeing the patient through the postoperative period
XS Separate structure, a service that is distinct because it was performed on a separate organ/structure
Date
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2017-01-01 Changed Moderate (Conscious) Sedation flag removed. See new Moderate Sedation category.
2010-01-01 Added -
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