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Official Description

Nasal/sinus endoscopy, surgical with ethmoidectomy; partial (anterior)

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The procedure described by CPT® Code 31254 refers to a surgical nasal and sinus endoscopy that includes a partial ethmoidectomy, specifically targeting the anterior portion of the ethmoid sinuses. This procedure is typically performed to address various conditions affecting the sinuses, such as sinusitis, nasal polyps, mucoceles, and tumors. The primary goal of the endoscopy is to alleviate obstructions in the sinus outflow tracts by removing inflamed tissue, thereby enhancing mucociliary clearance, which is essential for proper sinus function. The ethmoid sinuses, situated between the eyes and the bridge of the nose, contain multiple small air cells that can become obstructed or inflamed. The frontal sinuses, located above the ethmoid sinuses, are also involved in this procedure, as they are bordered by the anterior ethmoid sinus known as the agger nasi. During the endoscopy, an anesthetic is applied to ensure patient comfort, and a specialized endoscope is inserted through the nasal passages to inspect the nasal cavity, nasopharynx, and surrounding structures. The procedure involves careful manipulation of the middle turbinate and incisions to access the maxillary sinus, followed by the identification and opening of the ethmoid bulla. The surgical approach includes the removal of bony structures using precise instruments, allowing for the debridement of inflamed tissue and the unblocking of the anterior ethmoid cells. The procedure culminates with a thorough exploration of the frontal sinus to ensure that all obstructions are addressed, promoting optimal sinus drainage and function.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The procedure described by CPT® Code 31254 is indicated for the treatment of various conditions affecting the nasal and sinus cavities. These indications include:

  • Sinusitis - Inflammation of the sinus cavities that can lead to blockage and infection.
  • Nasal Polyps - Noncancerous growths in the nasal passages or sinuses that can obstruct airflow and drainage.
  • Mucoceles - Cystic lesions that can form in the sinuses due to obstruction of the sinus outflow tracts.
  • Sinus Tumors - Abnormal growths within the sinus cavities that may require surgical intervention for removal.

2. Procedure

The procedure involves several critical steps to ensure effective treatment of the indicated conditions:

  • Step 1: Anesthesia Application - An anesthetic is applied to the nasal area using ribbon gauze, neurosurgical pads, or injection to ensure patient comfort during the procedure.
  • Step 2: Endoscope Insertion - A specialized endoscope is inserted through the nose to inspect the nasal cavity, nasopharynx, nasal septum, turbinates, and lateral nasal wall for any abnormalities.
  • Step 3: Middle Turbinate Medialization - The middle turbinate is medialized to provide better access to the surgical site, and an incision is made in the anterior portion of the uncinate process to expose the natural ostium of the maxillary sinus.
  • Step 4: Ethmoid Bulla Identification and Opening - The ethmoid bulla is identified, and the bony portion is removed using a microdebrider or cutting forceps, allowing access to the anterior ethmoid cells.
  • Step 5: Anterior Resection - Resection is performed laterally and posteriorly to uncap the anterior ethmoid cells, which are then debrided to clear any obstructive tissue.
  • Step 6: Accessing the Posterior Ethmoid Sinus - The posterior ethmoid sinus is accessed by perforating the basal lamella, and the lateral and superior portions are removed to facilitate drainage.
  • Step 7: Frontal Sinus Exploration - After completing the ethmoidectomy, an angled scope is used to visualize the frontal sinus, and the agger nasi is resected to create a patent frontal recess.
  • Step 8: Outflow Tract Location - An ostium probe is utilized to locate the outflow tract, followed by the removal of the anterior nasofrontal beak and the superior aspect of the nasal septum.
  • Step 9: Final Checks and Packing - The surgical cavity is checked for any bleeding, packed as necessary, and the endoscope is removed to complete the procedure.

3. Post-Procedure

Post-procedure care following CPT® Code 31254 involves monitoring the patient for any signs of bleeding or complications. Patients may be advised to avoid strenuous activities and to follow specific instructions regarding nasal care and hygiene. Follow-up appointments are typically scheduled to assess healing and ensure that the sinuses are functioning properly. Additional treatments or medications may be prescribed to manage pain or prevent infection as the patient recovers from the procedure.

Short Descr NSL/SINS NDSC W/PRTL ETHMDCT
Medium Descr NASAL/SINUS NDSC W/PARTIAL ETHMOIDECTOMY
Long Descr Nasal/sinus endoscopy, surgical with ethmoidectomy; partial (anterior)
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) 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.
Endoscopic Base Code 31231  Nasal endoscopy, diagnostic, unilateral or bilateral (separate 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) P8I - Endoscopy - 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).
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).
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
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.
XS Separate structure, a service that is distinct because it was performed on a separate organ/structure
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).
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.
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.)
80 Assistant surgeon: surgical assistant services may be identified by adding modifier 80 to the usual procedure number(s).
AG Primary physician
AQ Physician providing a service in an unlisted health professional shortage area (hpsa)
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
GW Service not related to the hospice patient's terminal condition
X3 Episodic/broad services: for reporting services by clinicians who have broad responsibility for the comprehensive needs of the patient that is limited to a defined period and circumstance such as a hospitalization; reporting clinician service examples include but are not limited to the hospitalist's services rendered providing comprehensive and general care to a patient while admitted to the hospital
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
2018-01-01 Changed Long medium and short descriptions changed. AMA guideline added.
Pre-1990 Added Code added.
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