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Official Description

Radiologic examination, abscess, fistula or sinus tract study, radiological supervision and interpretation

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

A radiologic examination of an abscess, fistula, or sinus tract involves the use of imaging technology to assess these specific medical conditions. An abscess is a localized collection of pus that can occur in various tissues, while a fistula is an abnormal connection between two body parts, often resulting from disease or injury. A sinus tract is a channel that can form between an abscess and the skin or another organ. The purpose of this examination is to accurately determine the size and location of the abscess pocket or to identify the origin of the fistula or sinus tract. During the procedure, a sterile catheter is carefully inserted into the abscess or advanced into the fistula or sinus tract, all under the supervision of a radiologist. This process is crucial for ensuring that the catheter is placed correctly for optimal imaging results. Following catheter placement, a separate injection procedure is performed, where contrast material is introduced to enhance the visibility of the structures being examined. The distribution of this contrast material is then observed through radiographic imaging, allowing for a detailed assessment of the condition. After the examination, the radiologist compiles a written interpretation of the imaging findings, which is essential for guiding further medical management and treatment decisions.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The radiologic examination of an abscess, fistula, or sinus tract is indicated in the following scenarios:

  • Abscess Evaluation This procedure is performed to assess the size and location of a draining abscess, which may require further intervention or treatment.
  • Fistula Assessment It is indicated for determining the site of origin of a fistula, which is crucial for planning surgical or medical management.
  • Sinus Tract Investigation The examination is also indicated for evaluating a sinus tract, particularly when there is suspicion of an underlying abscess or infection.

2. Procedure

The procedure involves several key steps that ensure accurate imaging and assessment of the targeted area.

  • Step 1: Patient Preparation The patient is positioned appropriately to allow for optimal imaging access to the area of concern. This may involve specific positioning to enhance visibility of the abscess, fistula, or sinus tract during the examination.
  • Step 2: Catheter Insertion A sterile catheter is then inserted into the abscess pocket or advanced into the fistula or sinus tract. This step is performed under radiologic supervision to ensure precise placement, which is critical for the success of the imaging study.
  • Step 3: Contrast Injection Following catheter placement, a separately reportable injection procedure is conducted. Contrast material is injected through the catheter to enhance the visibility of the structures being examined. This contrast helps delineate the anatomy and any pathological changes present.
  • Step 4: Radiographic Observation The distribution of the contrast material is observed radiographically. This imaging allows the radiologist to assess the extent of the abscess, the pathway of the fistula, or the characteristics of the sinus tract.
  • Step 5: Interpretation Finally, the radiologist provides a written interpretation of the imaging findings. This report is essential for guiding further clinical management and treatment decisions based on the results of the examination.

3. Post-Procedure

After the procedure, patients may be monitored for any immediate complications related to the catheter insertion or contrast injection. It is important to observe for signs of infection or adverse reactions to the contrast material. The radiologist's written interpretation will be made available to the referring physician, who will discuss the findings with the patient and determine the next steps in management. Depending on the results, further diagnostic or therapeutic interventions may be necessary to address the underlying condition.

Short Descr X-RAY EXAM OF FISTULA
Medium Descr RADEX ABSCESS/FISTULA/SINUS TRACT RS&I
Long Descr Radiologic examination, abscess, fistula or sinus tract study, radiological supervision and interpretation
Status Code Active Code
Global Days XXX - Global Concept Does Not Apply
PC/TC Indicator (26, TC) 1 - Diagnostic Tests for Radiology Services
Multiple Procedures (51) 0 - No 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) 0 - 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 T-Packaged Codes
ASC Payment Indicator Packaged service/item; no separate payment made.
Type of Service (TOS) 4 - Diagnostic Radiology
Berenson-Eggers TOS (BETOS) I1F - Standard imaging - other
MUE 3
CCS Clinical Classification 226 - Other diagnostic radiology and related techniques
26 Professional component: certain procedures are a combination of a physician or other qualified health care professional component and a technical component. when the physician or other qualified health care professional component is reported separately, the service may be identified by adding modifier 26 to the usual procedure number.
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
GC This service has been performed in part by a resident under the direction of a teaching physician
76 Repeat procedure or service by same physician or other qualified health care professional: it may be necessary to indicate that a procedure or service was repeated by the same physician or other qualified health care professional subsequent to the original procedure or service. this circumstance may be reported by adding modifier 76 to the repeated procedure or service. note: this modifier should not be appended to an e/m service.
TC Technical component; under certain circumstances, a charge may be made for the technical component alone; under those circumstances the technical component charge is identified by adding modifier 'tc' to the usual procedure number; technical component charges are institutional charges and not billed separately by physicians; however, portable x-ray suppliers only bill for technical component and should utilize modifier tc; the charge data from portable x-ray suppliers will then be used to build customary and prevailing profiles
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.
AQ Physician providing a service in an unlisted health professional shortage area (hpsa)
Q6 Service furnished under a fee-for-time compensation arrangement by a substitute physician or by a substitute physical therapist furnishing outpatient physical therapy services in a health professional shortage area, a medically underserved area, or a rural area
XU Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main service
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.
52 Reduced services: under certain circumstances a service or procedure is partially reduced or eliminated at the discretion of the physician or other qualified health care professional. under these circumstances the service provided can be identified by its usual procedure number and the addition of modifier 52, signifying that the service is reduced. this provides a means of reporting reduced services without disturbing the identification of the basic service. note: for hospital outpatient 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).
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).
77 Repeat procedure by another physician or other qualified health care professional: it may be necessary to indicate that a basic procedure or service was repeated by another physician or other qualified health care professional subsequent to the original procedure or service. this circumstance may be reported by adding modifier 77 to the repeated procedure or service. note: this modifier should not be appended to an e/m service.
CR Catastrophe/disaster related
FY X-ray taken using computed radiography technology/cassette-based imaging
GV Attending physician not employed or paid under arrangement by the patient's hospice provider
GW Service not related to the hospice patient's terminal condition
GZ Item or service expected to be denied as not reasonable and necessary
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
Q3 Live kidney donor surgery and related services
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
XE Separate encounter, a service that is distinct because it occurred during a separate encounter
XS Separate structure, a service that is distinct because it was performed on a separate organ/structure
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Pre-1990 Added Code added.
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