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Official Description

Lengthening of palate, with island flap

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The procedure described by CPT® Code 42227 involves the lengthening of the palate using an island flap technique, specifically a buccinator sandwich flap. This surgical intervention is typically indicated for patients with conditions that necessitate the reconstruction or lengthening of the palate, often to improve function or aesthetics. The island flap technique utilizes bilateral buccinator flaps, which are created from the buccinator muscle located in the cheeks. The procedure begins with the careful outlining of the flaps on the midpart of each cheek, ensuring that the flaps are positioned below the parotid duct opening. The mucosa and full-thickness buccinator muscle are then raised in a controlled manner, preserving the blood supply from the buccinator artery, which is crucial for the viability of the flaps. This meticulous approach allows for the successful suturing of the first flap into the nasal layer, followed by the second flap being placed over it into the oral layer of the defect. The donor sites are subsequently closed with sutures, completing the procedure. This technique is essential for addressing specific palatal defects and enhancing the overall quality of life for patients requiring such surgical interventions.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The procedure described by CPT® Code 42227 is indicated for the following conditions:

  • Palatal Defects Reconstruction of palatal defects that may arise from congenital conditions, trauma, or surgical resections.
  • Velopharyngeal Insufficiency Treatment of velopharyngeal insufficiency, which can lead to speech difficulties due to inadequate closure of the velopharyngeal port.
  • Facial Asymmetry Correction of facial asymmetry that may result from palatal abnormalities.

2. Procedure

The procedure for CPT® Code 42227 involves several detailed steps to ensure the successful lengthening of the palate using an island flap technique:

  • Step 1: Flap Design The surgeon begins by outlining the buccinator flaps on the midpart of each cheek, ensuring that the markings are positioned below the parotid duct opening. This careful planning is crucial for the subsequent steps of the procedure.
  • Step 2: Flap Elevation The mucosa on each side is then raised along with the full-thickness of the buccinator muscle in an anteroposterior direction. This step is performed with precision to maintain the integrity of the surrounding tissues and to preserve the blood supply.
  • Step 3: Islanding the Flaps The flaps are islanded on a pedicle of the buccinator muscle, ensuring that the blood supply from the buccinator artery is preserved. This is critical for the viability of the flaps post-surgery.
  • Step 4: Suturing the First Flap The first flap is sutured into place with the mucosal surface facing upward into the nasal layer. This positioning is essential for the proper integration of the flap into the surrounding tissues.
  • Step 5: Suturing the Second Flap The second flap, taken from the opposite cheek, is then sutured over the first flap with the mucosal surface facing down into the oral layer of the defect. This layering technique helps to create a functional and aesthetic closure of the palatal defect.
  • Step 6: Closure of Donor Sites Finally, the donor sites on both cheeks are closed with sutures, completing the procedure and ensuring that the surgical sites are properly managed for healing.

3. Post-Procedure

Post-procedure care for patients undergoing the lengthening of the palate with an island flap includes monitoring for any signs of complications such as infection or flap necrosis. Patients may be advised to follow a soft diet to minimize stress on the surgical sites during the initial healing phase. Regular follow-up appointments are essential to assess the healing process and the functionality of the palate. Additionally, speech therapy may be recommended to address any speech issues that arise post-surgery, particularly if the procedure was performed to correct velopharyngeal insufficiency.

Short Descr LENGTHENING OF PALATE
Medium Descr LENGTHENING PALATE W/ISLAND FLAP
Long Descr Lengthening of palate, with island flap
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) 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 Non office-based surgical procedure added in CY 2008 or later; payment based on OPPS relative payment weight.
Type of Service (TOS) 2 - Surgery
Berenson-Eggers TOS (BETOS) P1G - Major procedure - Other
MUE 1
CCS Clinical Classification 33 - Other OR therapeutic procedures on nose, mouth and pharynx
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).
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).
AS Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery
GC This service has been performed in part by a resident under the direction of a teaching physician
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