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Official Description

Sigmoidoscopy, flexible; with removal of tumor(s), polyp(s), or other lesion(s) by snare technique

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

A flexible sigmoidoscopy is a medical procedure that involves the use of a flexible tube equipped with a light and camera, known as a sigmoidoscope, to examine the lower part of the colon, specifically the sigmoid colon. This procedure is performed to identify and remove abnormal growths such as tumors, polyps, or other lesions using a technique called snare technique. During the procedure, the sigmoidoscope is carefully inserted into the anus and advanced through the rectum into the sigmoid colon. To facilitate a clear view, air is insufflated into the colon, which helps to separate the mucosal folds and allows for better visualization of the internal structures. Once the sigmoidoscope is in place, it is withdrawn to allow for a thorough inspection of the mucosal surface. If any tumors, polyps, or lesions are detected, a wire snare loop is positioned around the lesion. This loop is then heated to effectively shave off and cauterize the lesion, minimizing bleeding and promoting healing. The lesions can be removed in one piece (en bloc) with a single snare placement or in smaller fragments (piecemeal), which may require multiple snare applications. After the removal of the lesions, the endoscope is withdrawn, and the mucosal surfaces are re-examined for any signs of ulcerations, varices, bleeding sites, strictures, or other abnormalities that may require further attention.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The flexible sigmoidoscopy with removal of tumors, polyps, or other lesions by snare technique is indicated for various clinical scenarios. These include:

  • Detection of Abnormal Growths This procedure is performed to identify and remove tumors, polyps, or other lesions that may be present in the sigmoid colon.
  • Screening for Colorectal Cancer It is often utilized as a screening tool for colorectal cancer, particularly in patients with risk factors or those over a certain age.
  • Management of Symptoms Patients presenting with symptoms such as rectal bleeding, changes in bowel habits, or unexplained abdominal pain may undergo this procedure to determine the underlying cause.

2. Procedure

The procedure involves several key steps to ensure effective examination and treatment of the sigmoid colon. These steps include:

  • Step 1: Preparation The patient is positioned appropriately, typically lying on their side, and may receive sedation or anesthesia as needed for comfort during the procedure.
  • Step 2: Insertion of the Sigmoidoscope A flexible sigmoidoscope is gently inserted into the anus and advanced through the rectum into the sigmoid colon. Care is taken to navigate the curves of the colon while minimizing discomfort.
  • Step 3: Air Insufflation Air is insufflated into the colon to expand the lumen, which helps to separate the mucosal folds and provides a clearer view of the internal structures.
  • Step 4: Inspection of the Mucosa The sigmoidoscope is withdrawn slowly, allowing for a thorough inspection of the mucosal surface for any abnormalities, including lesions, polyps, or signs of disease.
  • Step 5: Lesion Identification and Snare Placement If any tumors, polyps, or lesions are identified, a wire snare loop is carefully placed around the lesion to facilitate removal.
  • Step 6: Lesion Removal The snare loop is heated to shave off and cauterize the lesion. This can be done in one piece (en bloc) or in smaller fragments (piecemeal), depending on the size and nature of the lesion.
  • Step 7: Final Inspection After the removal of the lesions, the endoscope is withdrawn, and the mucosal surfaces are re-examined for any remaining abnormalities, such as ulcerations, varices, or bleeding sites.

3. Post-Procedure

Post-procedure care involves monitoring the patient for any immediate complications, such as bleeding or perforation. Patients may experience mild discomfort or cramping following the procedure, which typically resolves quickly. Instructions regarding diet, activity level, and signs of complications to watch for will be provided. Follow-up appointments may be necessary to discuss pathology results from any removed lesions and to plan further management if needed.

Short Descr SIGMOIDOSCOPY W/TUMR REMOVE
Medium Descr SGMDSC FLX RMVL TUM POLYP/OTH LES SNARE TQ
Long Descr Sigmoidoscopy, flexible; with removal of tumor(s), polyp(s), or other lesion(s) by snare technique
Status Code Active Code
Global Days 000 - Endoscopic or Minor Procedure
PC/TC Indicator (26, TC) 0 - Physician Service Code
Multiple Procedures (51) 3 - Special payment adjustment rules for multiple endoscopic 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) 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.
Endoscopic Base Code 45330  Sigmoidoscopy, flexible; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
Diagnostic Imaging Family 99 - Concept Does Not Apply
APC Status Indicator Procedure or Service, Multiple Reduction Applies
ASC Payment Indicator Surgical procedure on ASC list in CY 2007; payment based on OPPS relative payment weight.
Type of Service (TOS) 2 - Surgery
Berenson-Eggers TOS (BETOS) P8C - Endoscopy - sigmoidoscopy
MUE 1
CCS Clinical Classification 77 - Proctoscopy and anorectal biopsy
PT Colorectal cancer screening test; converted to diagnostic test or other 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).
SG Ambulatory surgical center (asc) facility 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).
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.
74 Discontinued out-patient hospital/ambulatory surgery center (asc) procedure after administration of anesthesia: due to extenuating circumstances or those that threaten the well being of the patient, the physician may terminate a surgical or diagnostic procedure after the administration of anesthesia (local, regional block(s), general) or after the procedure was started (incision made, intubation started, scope inserted, etc). under these circumstances, the procedure started but terminated can be reported by its usual procedure number and the addition of modifier 74. note: the elective cancellation of a service prior to the administration of anesthesia and/or surgical preparation of the patient should not be reported. for physician reporting of a discontinued procedure, see modifier 53.
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.
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.)
AG Primary physician
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)
CR Catastrophe/disaster related
GA Waiver of liability statement issued as required by payer policy, individual case
GC This service has been performed in part by a resident under the direction of a teaching physician
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
KX Requirements specified in the medical policy have been met
Q0 Investigational clinical service provided in a clinical research study that is in an approved clinical research study
Q5 Service furnished under a reciprocal billing 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
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
RT Right side (used to identify procedures performed on the right side of the body)
X2 Continuous/focused services: for reporting services by clinicians whose expertise is needed for the ongoing management of a chronic disease or a condition that needs to be managed and followed with no planned endpoint to the relationship; reporting clinician service examples include but are not limited to: a rheumatologist taking care of the patient's rheumatoid arthritis longitudinally but not providing general primary care services
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
XU Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main service
Date
Action
Notes
2017-01-01 Changed Moderate (Conscious) Sedation flag removed. See new Moderate Sedation category.
1994-01-01 Added First appearance in code book in 1994.
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