Coding Ahead
CasePilot
Medical Coding Assistant
CaseConsultant
Instant Email Coding Consultant
Case2Code
Search and Code Lookup Tool
CareerCenter
Medical Coding Job Board
Log in Register free account

Need help choosing the right code?

Ask CasePilot about procedures, modifiers, bundling, and coding guidance.

Try CasePilot

Official Description

Ablation therapy for reduction or eradication of 1 or more bone tumors (eg, metastasis) including adjacent soft tissue when involved by tumor extension, percutaneous, including imaging guidance when performed; cryoablation

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

The CPT® Code 20983 refers to a specific procedure known as ablation therapy, which is utilized for the reduction or eradication of one or more bone tumors, such as those resulting from metastasis. This procedure is performed percutaneously, meaning it is conducted through the skin, and it often involves the use of imaging guidance to accurately target the tumor. The official description highlights that this technique includes the treatment of adjacent soft tissue that may be involved due to tumor extension. The method employed in this procedure is cryoablation, which utilizes extreme cold to freeze and destroy tumor cells effectively. By employing imaging techniques such as ultrasound, computed tomography (CT), or magnetic resonance imaging (MRI), healthcare professionals can precisely locate the tumor and ensure that the ablation is performed accurately. The procedure may necessitate the placement of multiple cryotherapy probes to achieve sufficient margins for tumor reduction or complete eradication. This careful approach is essential to ensure that the treatment encompasses not only the tumor itself but also any surrounding tissue that may be affected. Overall, CPT® Code 20983 encapsulates a sophisticated and targeted approach to treating bone tumors through advanced cryotherapy techniques.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

The procedure described by CPT® Code 20983 is indicated for the treatment of bone tumors, particularly those that may be metastatic in nature. The following conditions may warrant the use of this ablation therapy:

  • Bone Tumors The presence of one or more bone tumors, including metastatic lesions, which require intervention to reduce size or eradicate.
  • Adjacent Soft Tissue Involvement Cases where the tumor extends into adjacent soft tissue, necessitating treatment to ensure complete removal and prevent further complications.

2. Procedure

The procedure for CPT® Code 20983 involves several critical steps to ensure effective treatment of the bone tumor(s). The following outlines the procedural steps:

  • Step 1: Imaging Guidance Initially, imaging techniques such as ultrasound, CT, or MRI are employed to accurately identify the location and extent of the bone tumor. This imaging is crucial for planning the procedure and ensuring precise targeting of the tumor.
  • Step 2: Probe Placement Once the tumor is located, the healthcare provider determines the entry sites for the cryotherapy probes. Small incisions are made to facilitate the placement of these probes. Using imaging guidance, the probes are carefully inserted into the center of the tumor lesion, ensuring that major blood vessels are avoided to minimize the risk of complications.
  • Step 3: Activation of Cryoablation Unit After the probes are in place, the location of the probe tips is confirmed through imaging. The cryoablation unit is then activated, initiating the first freeze-thaw cycle. The probes are filled with argon gas, which allows for rapid freezing of the tumor at temperatures as low as -100 degrees centigrade.
  • Step 4: Monitoring Ice Ball Formation During the freeze cycle, the formation of an ice ball around the tumor is monitored using imaging guidance. It is essential to ensure that the ice ball extends beyond the margins of the lesion to include any adjacent soft tissue that may be involved.
  • Step 5: Thawing Cycle Following the freeze cycle, a thawing cycle is initiated by replacing the argon gas with helium. This process is also monitored through imaging to assess the effectiveness of the tumor destruction.
  • Step 6: Repeat Cycles Complete eradication of the tumor typically requires multiple freeze-thaw cycles, which are performed as necessary based on the tumor's response to treatment and the imaging assessments.

3. Post-Procedure

After the completion of the cryoablation procedure, patients may require monitoring for any immediate post-procedural complications. Expected recovery may vary depending on the extent of the procedure and the individual patient's condition. Follow-up imaging may be necessary to assess the effectiveness of the treatment and ensure that the tumor has been adequately addressed. Additionally, patients may be advised on pain management and activity restrictions during the recovery period to promote healing and minimize discomfort.

Short Descr ABLATE BONE TUMOR(S) PERQ
Medium Descr ABLATJ BONE TUMOR CRYO PERQ W/IMG GDN WHEN PRFMD
Long Descr Ablation therapy for reduction or eradication of 1 or more bone tumors (eg, metastasis) including adjacent soft tissue when involved by tumor extension, percutaneous, including imaging guidance when performed; cryoablation
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) 1 - 150% payment adjustment for bilateral procedures applies.
Physician Supervisions 09 - Concept does not apply.
Assistant Surgeon (80, 82) 1 - Statutory payment restriction for assistants at surgery applies 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 Hospital Part B services paid through a comprehensive APC
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) P6C - Minor procedures - other (Medicare fee schedule)
MUE 1
22 Increased procedural services: when the work required to provide a service is substantially greater than typically required, it may be identified by adding modifier 22 to the usual procedure code. documentation must support the substantial additional work and the reason for the additional work (ie, increased intensity, time, technical difficulty of procedure, severity of patient's condition, physical and mental effort required). note: this modifier should not be appended to an e/m service.
50 Bilateral procedure: unless otherwise identified in the listings, bilateral procedures that are performed at the same session, should be identified by adding modifier 50 to the appropriate 5 digit code. note: this modifier should not be appended to designated "add-on" codes (see appendix d).
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).
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.
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.)
AQ Physician providing a service in an unlisted health professional shortage area (hpsa)
CC Procedure code change (use 'cc' when the procedure code submitted was changed either for administrative reasons or because an incorrect code was filed)
GC This service has been performed in part by a resident under the direction of a teaching physician
LT Left side (used to identify procedures performed on the left side of the body)
MG The order for this service does not have applicable appropriate use criteria in the qualified clinical decision support mechanism consulted by the ordering professional
Q1 Routine clinical service provided in a clinical research study that is in an approved clinical research study
RT Right side (used to identify procedures performed on the right side of the body)
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
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
Date
Action
Notes
2017-01-01 Changed Moderate (Conscious) Sedation flag removed. See new Moderate Sedation category.
2015-01-01 Added Added
Code
Description
Code
Description
Code
Description
Code
Description
CasePilot

Get instant expert-level medical coding assistance.

Ask about:
CPT Codes Guidelines Modifiers Crosswalks NCCI Edits Compliance Medicare Coverage
Example: "What is CPT code 99213?" or "Guidelines for E/M services"