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Official Description

Sigmoidoscopy, flexible; with directed submucosal injection(s), any substance

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

A flexible sigmoidoscopy is a diagnostic 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 and rectum. During this procedure, directed submucosal injections of any substance are administered to enhance visualization and facilitate further interventions if necessary. Common substances used for these injections include India ink, saline, epinephrine, or corticosteroids. India ink is particularly useful for marking lesions, a technique often referred to as tattooing, which aids in the identification of these areas for potential excision in subsequent procedures. Saline or epinephrine injections serve to create a submucosal fluid cushion, effectively separating the mucosal layer from the underlying muscle layer of the colon, thereby elevating the lesion for better access and visibility. The procedure begins with the introduction of the sigmoidoscope into the anus, which is then carefully advanced through the rectum and into the sigmoid colon. Air insufflation is utilized to expand the colon and separate the mucosal folds, allowing for a thorough inspection. After the scope is withdrawn, the mucosal surfaces are meticulously examined for any signs of abnormalities such as ulcerations, varices, bleeding sites, lesions, or strictures, ensuring a comprehensive assessment of the patient's condition.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The flexible sigmoidoscopy with directed submucosal injection(s) is indicated for various clinical scenarios where visualization and intervention in the lower gastrointestinal tract are necessary. The following conditions may warrant this procedure:

  • Lesion Identification The procedure is performed to identify and mark lesions within the sigmoid colon or rectum, facilitating further evaluation or excision.
  • Assessment of Abnormalities It is indicated for the assessment of abnormalities such as polyps, tumors, or other lesions that may require further investigation or treatment.
  • Management of Bleeding The procedure may be indicated in cases of gastrointestinal bleeding where the source needs to be identified and potentially treated.
  • Evaluation of Inflammatory Conditions It is used to evaluate inflammatory bowel diseases, such as ulcerative colitis or Crohn's disease, particularly in the lower colon.

2. Procedure

The flexible sigmoidoscopy with directed submucosal injection(s) involves several key procedural steps that ensure effective examination and treatment.

  • Step 1: Preparation The patient is positioned appropriately, typically in a left lateral position, to facilitate access to the rectum and sigmoid colon. Adequate bowel preparation is performed to ensure clear visualization during the procedure.
  • Step 2: Introduction of the Sigmoidoscope A standard flexible sigmoidoscope is gently introduced 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 for the patient.
  • Step 3: Air Insufflation Air is insufflated through the sigmoidoscope to expand the colon, which helps to separate the mucosal folds and improve visibility of the mucosal surface.
  • Step 4: Inspection of the Mucosa The endoscope is withdrawn slowly, allowing for a careful inspection of the mucosal surfaces for any abnormalities such as lesions, ulcerations, or strictures.
  • Step 5: Directed Submucosal Injection Once a lesion is identified, one or more directed submucosal injections are administered. The choice of substance, such as India ink, saline, or epinephrine, is based on the clinical need for marking or elevating the lesion.
  • Step 6: Final Inspection After the injections, the endoscope is withdrawn completely, and the mucosal surfaces are inspected again to assess for any additional abnormalities or complications that may have arisen during the procedure.

3. Post-Procedure

Post-procedure care following a flexible sigmoidoscopy with directed submucosal injection(s) typically involves monitoring the patient for any immediate complications, such as bleeding or perforation. Patients may experience mild discomfort or cramping, which usually resolves quickly. It is important to provide the patient with post-procedure instructions, including signs of complications to watch for, such as severe abdominal pain, persistent bleeding, or fever. Follow-up appointments may be scheduled to discuss findings and any necessary further interventions based on the results of the procedure.

Short Descr SIGMOIDOSCOPY W/SUBMUC INJ
Medium Descr SGMDSC FLX DIRED SBMCSL NJX ANY SBST
Long Descr Sigmoidoscopy, flexible; with directed submucosal injection(s), any substance
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
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).
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.
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.
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.
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.)
82 Assistant surgeon (when qualified resident surgeon not available): the unavailability of a qualified resident surgeon is a prerequisite for use of modifier 82 appended to the usual procedure code number(s).
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
GZ Item or service expected to be denied as not reasonable and necessary
KX Requirements specified in the medical policy have been met
PT Colorectal cancer screening test; converted to diagnostic test or other procedure
Q1 Routine clinical service provided in a clinical research study that is in an approved clinical research study
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
SG Ambulatory surgical center (asc) facility service
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.
2003-01-01 Added First appearance in code book in 2003.
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