0BR74KZ
Replacement Main Bronchus, Left to No Qualifier with Nonautologous Tissue Substitute, Percutaneous Endoscopic Approach
Procedural Specifications
| Clinical Axis | Detail Definition |
|---|---|
| Section | 0 Medical and Surgical |
| Body System | B Respiratory System |
| Operation | R Replacement |
| Body Part | 7 Main Bronchus, Left |
| Approach | 4 Percutaneous Endoscopic |
| Device | K Nonautologous Tissue Substitute |
| Qualifier | Z No Qualifier |
Operation Definition
Putting in or on biological or synthetic material that physically takes the place and/or function of all or a portion of a body part
Procedure Overview
This family involves putting in biological or synthetic material that physically takes over for a missing or damaged portion of the respiratory tract, most notably reconstruction of the trachea using graft material after a segment is removed for stenosis or tumor invasion. Unlike a lung transplant, which replaces the entire organ from a donor and is classified separately, these procedures typically address a segment of the airway wall.
Patients undergo these procedures when the trachea has been narrowed, weakened, or destroyed to the point that simple repair won't hold, often after prior injury from prolonged intubation, tumor removal, or a congenital defect. The graft, whether from the patient's own tissue, a donor, or a synthetic conduit, is meant to permanently stand in for the missing structure.
Anatomy & Axis Detail
Main Bronchus, Left
The left main bronchus is notably longer and more horizontally angled than its right-sided counterpart, passing beneath the aortic arch before dividing into the upper and lower lobe bronchi, an anatomic relationship that constrains surgical access during reconstruction. Replacement is performed when disease such as an invasive mediastinal tumor, severe stricture, or traumatic disruption has eliminated a segment of the airway beyond what direct reanastomosis can bridge, requiring a graft or conduit to restore continuity to the left lung's sole airway inlet. The bronchus's course beneath the aortic arch and alongside the left pulmonary artery makes dissection and graft placement technically demanding. Coding this as replacement requires confirmation that a substitute segment was sutured in place rather than the native bronchus being freed and repositioned or simply repaired.
Approach: Percutaneous Endoscopic
Percutaneous Endoscopic combines a puncture through skin or mucous membrane with insertion of an endoscope to visualize the procedure internally, as in laparoscopic cholecystectomy. It is distinguished from plain Percutaneous by the presence of scope-guided visualization, and from Via Natural or Artificial Opening Endoscopic by its route being a new puncture rather than an existing orifice or stoma.
Device: Nonautologous Tissue Substitute
Nonautologous Tissue Substitute refers to biologic material sourced from a donor or another species, such as an allograft or xenograft, used to replace a body part. It differs from Autologous Tissue Substitute by tissue origin outside the patient's own body, and from Synthetic Substitute by being biologic rather than manufactured material.
Coding & Documentation
Coding requires documentation confirming that material was placed to physically take the place of tissue that was removed or is absent, not merely reinforcing existing tissue. Operative notes should specify the graft or substitute material used and the segment of the airway or lung structure it replaces. A recurring error is confusing a patch graft over an existing airway wall, which is Supplement, with true segmental replacement following excision.
Commonly Confused With
The closest points of confusion are with Supplement, where original tissue remains and is only reinforced, and with Transplantation, reserved for whole-organ lung replacement from a donor. Checking whether the native structure was removed before the graft was placed, and whether the graft is a segment or an entire organ, resolves most of these distinctions.