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Official Description

Sinusotomy, maxillary (antrotomy); radical (Caldwell-Luc) without removal of antrochoanal polyps

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

A radical maxillary sinusotomy, also known as an antrostomy or Caldwell-Luc procedure, is a surgical intervention aimed at accessing the maxillary sinus through the mouth. This procedure is indicated for various conditions affecting the maxillary sinus, particularly when there is a need for drainage or specimen collection. The surgery begins with an incision made in the oral cavity, specifically over the canine tooth, which extends to the first premolar. This approach allows the surgeon to reach the maxillary sinus while minimizing external incisions. During the procedure, electrocautery is utilized to dissect through the soft tissue and periosteum, carefully elevating the periosteum from the anterior wall of the maxilla to protect the infraorbital nerve, which is crucial for maintaining sensation in the face. Access to the maxillary sinus is achieved through the canine fossa using a mallet and osteotome, and the opening is subsequently enlarged with rongeurs to facilitate adequate drainage. The procedure is performed without the removal of antrochoanal polyps, which are solitary growths that can obstruct the sinus and nasal passages. The radical maxillary sinusotomy is essential for addressing issues such as chronic sinusitis or other sinus-related complications, allowing for effective drainage and management of the sinus condition.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The radical maxillary sinusotomy (Caldwell-Luc procedure) is indicated for the following conditions:

  • Chronic Sinusitis - Persistent inflammation of the maxillary sinus that does not respond to medical management.
  • Maxillary Sinus Obstruction - Conditions that lead to blockage of the sinus drainage pathways, causing accumulation of mucus and infection.
  • Sinus Tumors - Presence of benign or malignant growths within the maxillary sinus that require surgical intervention for diagnosis or treatment.
  • Specimen Collection - Need for obtaining tissue samples from the maxillary sinus for culture and sensitivity testing to identify infectious agents.

2. Procedure

The procedure for a radical maxillary sinusotomy involves several critical steps:

  • Step 1: Incision - An incision is made in the oral cavity over the canine tooth, extending to the first premolar. This strategic location allows for direct access to the maxillary sinus while minimizing external scarring.
  • Step 2: Electrocautery Dissection - The surgeon employs electrocautery to carefully dissect through the soft tissue and periosteum, ensuring that the surrounding structures are preserved. This step is crucial for accessing the bone without causing excessive bleeding.
  • Step 3: Elevation of the Periosteum - The periosteum is elevated from the anterior wall of the maxilla, with particular attention paid to protecting the infraorbital nerve, which runs in close proximity and is vital for facial sensation.
  • Step 4: Accessing the Maxillary Sinus - Using a mallet and osteotome, the surgeon accesses the maxillary sinus through the canine fossa. This step involves creating an opening in the bone to allow entry into the sinus cavity.
  • Step 5: Enlarging the Opening - The initial opening is enlarged using rongeurs, which are specialized surgical instruments designed to remove bone and create a larger access point for drainage and intervention.
  • Step 6: Drainage and Specimen Collection - Once access is achieved, the maxillary sinus is drained, and any necessary specimens are obtained for culture and sensitivity testing. This is a critical step in diagnosing any underlying infections.
  • Step 7: Irrigation - The maxillary sinus is thoroughly irrigated to clear out any debris, mucus, or infectious material, promoting a clean environment for healing.

3. Post-Procedure

After the radical maxillary sinusotomy, patients are typically monitored for any immediate complications. Post-procedure care may include pain management, instructions for oral hygiene to prevent infection at the incision site, and follow-up appointments to assess healing and sinus function. Patients may also be advised on signs of infection or complications to watch for, such as increased pain, fever, or unusual discharge. Recovery time can vary, but most patients can expect to resume normal activities within a few days, depending on their overall health and the extent of the procedure.

Short Descr EXPLORATION MAXILLARY SINUS
Medium Descr SINUSOTOMY MAXILLARY RAD W/O RMVL ANTROCH POLYPS
Long Descr Sinusotomy, maxillary (antrotomy); radical (Caldwell-Luc) without removal of antrochoanal polyps
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) 1 - 150% payment adjustment for bilateral procedures applies.
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.
Diagnostic Imaging Family 99 - Concept Does Not Apply
APC Status Indicator Hospital Part B services paid through a comprehensive APC
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) P5E - Ambulatory procedures - 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).
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.)
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.
50 Bilateral procedure: unless otherwise identified in the listings, bilateral procedures that are performed at the same session, should be identified by adding modifier 50 to the appropriate 5 digit code. note: this modifier should not be appended to designated "add-on" codes (see appendix d).
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).
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.
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.)
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
GW Service not related to the hospice patient's terminal condition
LT Left side (used to identify procedures performed on the left side of the body)
RT Right side (used to identify procedures performed on the right side of the body)
SG Ambulatory surgical center (asc) facility service
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2011-01-01 Changed Short description changed.
Pre-1990 Added Code added.
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