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Official Description

Anoplasty, plastic operation for stricture; infant

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

Anoplasty, as described by CPT® Code 46705, refers to a surgical procedure specifically designed to address anal strictures in infants. Anal strictures can either be congenital, meaning they are present at birth, or acquired, which typically results from various forms of trauma or injury to the anal canal. Acquired anal strictures may develop due to scar tissue formation that constricts the anal canal, leading to significant difficulties in passing stool. This scarring can occur as a result of several factors, including tears, radiation therapy for cancers located in the perianal area, or trauma from previous surgical interventions. In contrast, congenital anal strictures, also known as anal stenosis, are structural abnormalities that exist from birth. During the anoplasty procedure, the anal mucosa is carefully incised to expose the underlying scar tissue. The surgeon then incises the scar tissue within the anal canal or anal sphincter to alleviate the stricture, effectively widening the anal canal to restore normal function. Following the incision of the scar tissue, the overlying tissues are meticulously repaired in layers to ensure proper healing and function. It is important to note that CPT® Code 46705 is specifically designated for use in infants, while CPT® Code 46700 is applicable for the repair of anal strictures in adults.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

The anoplasty procedure, coded as CPT® 46705, is indicated for the treatment of anal strictures in infants. These strictures may arise from various conditions, including:

  • Congenital Anal Stricture: A structural abnormality present at birth, also referred to as anal stenosis.
  • Acquired Anal Stricture: A condition resulting from scar tissue formation due to trauma, previous surgical procedures, or radiation therapy for cancers affecting the perianal region.

2. Procedure

The anoplasty procedure involves several critical steps to effectively address anal strictures in infants. The following outlines the procedural steps:

  • Step 1: The procedure begins with the patient being placed under appropriate anesthesia to ensure comfort and safety during the surgery.
  • Step 2: The surgeon makes an incision in the anal mucosa to access the underlying scar tissue. This incision is crucial for exposing the area that requires intervention.
  • Step 3: Once the scar tissue is exposed, the surgeon carefully incises the scar tissue within the anal canal or anal sphincter. This step is essential for releasing the stricture and widening the anal canal, thereby restoring normal function.
  • Step 4: After the stricture has been addressed, the surgeon proceeds to repair the overlying tissues. This is done in layers to ensure proper alignment and healing of the anal mucosa.
  • Step 5: Finally, the surgical site is meticulously inspected for any bleeding or complications before concluding the procedure and ensuring the infant's safety during recovery.

3. Post-Procedure

Post-procedure care following anoplasty involves monitoring the infant for any signs of complications, such as infection or excessive bleeding. The recovery process typically includes managing pain and ensuring the infant is comfortable. Parents or caregivers will receive instructions on how to care for the surgical site, including keeping it clean and dry. Follow-up appointments are essential to assess healing and function, and to address any concerns that may arise during the recovery period. It is important to ensure that the infant is able to pass stool without difficulty, indicating that the procedure has been successful in alleviating the stricture.

Short Descr REPAIR OF ANAL STRICTURE
Medium Descr ANOPLASTY PLASTIC OPERATION STRICTURE INFANT
Long Descr Anoplasty, plastic operation for stricture; infant
Status Code Active Code
Global Days 090 - Major Surgery
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) 1 - Co-surgeons could be paid, though supporting documentation is required...
Team Surgery (66) 0 - Team surgeons not permitted for this procedure.
Diagnostic Imaging Family 99 - Concept Does Not Apply
APC Status Indicator Inpatient Procedures, not paid under OPPS
Type of Service (TOS) 2 - Surgery
Berenson-Eggers TOS (BETOS) P1G - Major procedure - Other
MUE 1
CCS Clinical Classification 96 - Other OR lower GI therapeutic procedures
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Pre-1990 Added Code added.
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