Coding Ahead
CasePilot
Medical Coding Assistant
CaseConsultant
Instant Email Coding Consultant
Case2Code
Search and Code Lookup Tool
CareerCenter
Medical Coding Job Board
Log in Register free account

Need help choosing the right code?

Ask CasePilot about procedures, modifiers, bundling, and coding guidance.

Try CasePilot

Official Description

Bronchoscopy, rigid or flexible, including fluoroscopic guidance, when performed; with placement of tracheal stent(s) (includes tracheal/bronchial dilation as required)

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

The procedure described by CPT® Code 31631 involves the use of a bronchoscope, which can be either rigid or flexible, to perform a detailed examination and treatment of the trachea. The bronchoscope is inserted through the nose or mouth and advanced into the oropharynx, allowing for a thorough visual inspection of the airway structures. Fluoroscopic guidance may be utilized during this procedure to enhance visualization. The examination includes the vocal cords and the trachea, where any abnormalities such as fractures or stenosis (narrowing) can be identified. If a rigid bronchoscope is employed, it allows for direct intervention on the identified issues, such as reducing a tracheal fracture or dilating a stenotic area. This is achieved by passing progressively larger rigid bronchoscopes through the trachea until the anatomical structures are restored to their normal position or the stenosis is adequately treated. In cases where a flexible bronchoscope is used, a balloon catheter is introduced to perform dilation, with the balloon being inflated and deflated serially to achieve the desired outcome. Following the dilation process, if a stent is required to maintain an open airway, it is placed at the site of the obstruction or stenosis using a stent delivery catheter advanced through the bronchoscope. This comprehensive approach ensures that the airway remains patent and functional following the procedure.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

The procedure described by CPT® Code 31631 is indicated for various conditions affecting the trachea, particularly when there is a need to address tracheal fractures or stenosis. The following are specific indications for performing this procedure:

  • Tracheal Fracture A break or disruption in the tracheal structure that may require realignment or stabilization.
  • Tracheal Stenosis A narrowing of the trachea that can obstruct airflow and necessitate dilation or stenting to restore normal airway function.

2. Procedure

The procedure involves several critical steps to ensure effective examination and treatment of the trachea:

  • Step 1: Insertion of the Bronchoscope The bronchoscope, either rigid or flexible, is inserted through the patient's nose or mouth and advanced into the oropharynx. This initial step allows for a visual examination of the airway structures.
  • Step 2: Examination of the Oropharynx and Vocal Cords Once the bronchoscope is in place, the oropharynx is examined, and the vocal cords are visualized to assess for any abnormalities or obstructions.
  • Step 3: Advancement into the Trachea The bronchoscope is then advanced into the trachea, where a thorough examination is conducted to identify the site of any tracheal fractures or stenosis.
  • Step 4: Treatment of Fracture or Stenosis If a rigid bronchoscope is used, the identified fracture or stenosis can be treated directly. The procedure may involve reducing the fracture or dilating the stenotic area by passing progressively larger rigid bronchoscopes until the tracheal structures are restored to their normal position.
  • Step 5: Use of Flexible Bronchoscope If a flexible bronchoscope is utilized, a balloon catheter is inserted to perform dilation. The balloon is inflated and deflated serially to achieve the desired reduction of the fracture or enlargement of the stenotic site.
  • Step 6: Placement of Stent If necessary, following dilation, a stent is placed to maintain an open airway. A stent delivery catheter or other stent delivery device is advanced through the bronchoscope to the site of obstruction or stenosis, where the stent is positioned to ensure airway patency.

3. Post-Procedure

After the completion of the bronchoscopy and any necessary interventions, patients may require monitoring for potential complications such as bleeding, infection, or airway obstruction. The expected recovery period will vary based on the extent of the procedure and the patient's overall health. Follow-up care may include additional imaging or assessments to ensure the effectiveness of the stent placement and the stability of the airway. Patients should be advised on signs of complications and when to seek further medical attention.

Short Descr BRONCHOSCOPY DILATE W/STENT
Medium Descr BRONCHOSCOPY W/PLACEMENT TRACHEAL STENT
Long Descr Bronchoscopy, rigid or flexible, including fluoroscopic guidance, when performed; with placement of tracheal stent(s) (includes tracheal/bronchial dilation as required)
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 31622  Bronchoscopy, rigid or flexible, including fluoroscopic guidance, when performed; diagnostic, with cell washing, when performed (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) P8F - Endoscopy - bronchoscopy
MUE 1
CCS Clinical Classification 42 - Other OR therapeutic procedures on respiratory system

This is a primary code that can be used with these additional add-on codes.

31627 Addon Code MPFS Status: Active Code APC N ASC N1 CPT Assistant Article Illustration for Code Bronchoscopy, rigid or flexible, including fluoroscopic guidance, when performed; with computer-assisted, image-guided navigation (List separately in addition to code for primary procedure[s])
GC This service has been performed in part by a resident under the direction of a teaching physician
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.
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).
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.
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.)
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.)
AG Primary physician
AQ Physician providing a service in an unlisted health professional shortage area (hpsa)
CR Catastrophe/disaster related
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
Q1 Routine clinical service provided in a clinical research study that is in an approved clinical research study
RT Right side (used to identify procedures performed on the right side of the body)
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
2011-01-01 Changed Short description changed.
2010-01-01 Changed Code description changed.
2005-01-01 Changed Code description changed.
2004-01-01 Changed Code description changed.
2001-01-01 Changed Code description changed.
Pre-1990 Added Code added.
Code
Description
Code
Description
Code
Description
Code
Description
Code
Description
CasePilot

Get instant expert-level medical coding assistance.

Ask about:
CPT Codes Guidelines Modifiers Crosswalks NCCI Edits Compliance Medicare Coverage
Example: "What is CPT code 99213?" or "Guidelines for E/M services"