Bjork Flap Tracheostomy technique, Stitch/Suture, CPT Code

Björk Flap Tracheostomy:

• What is Björk Flap Tracheostomy?
• Björk Flap Tracheostomy Technique
• Björk Flap Stitch/Suture
• Björk Flap Tracheostomy CPT Code

What is Björk Flap Tracheostomy?

A Björk flap tracheostomy is a surgical tracheostomy technique in which an inferiorly based flap is created from the anterior wall of the trachea and secured to the surrounding skin. The technique is named after the Swedish surgeon Per-Ingvar Björk and was described as a method in which an inverted U-shaped tracheal flap is sutured to the skin edge. The resulting flap helps create a mature, accessible tracheostoma and can make subsequent tracheostomy tube management easier. The technique has historically been used in both adult and pediatric patients, although the exact surgical approach is selected according to anatomy, indication, age, airway condition, and surgeon preference.

The Björk flap should be distinguished from a tracheal window. A window removes a portion of the anterior tracheal wall, whereas the Björk technique preserves a hinged flap that remains attached to the trachea and is brought toward the skin. The choice between techniques depends on the clinical situation and surgeon's judgment. Published comparisons have found that Björk flaps are commonly used in patients requiring prolonged ventilatory support, although both flap and window techniques remain established approaches to surgical tracheostomy.

Björk Flap Tracheostomy Technique

In broad terms, the technique involves exposing the cervical trachea and creating an anterior tracheal flap that remains attached along its inferior aspect. The flap is then reflected toward the skin and secured so that the tracheal opening communicates directly with the skin. A tracheostomy tube is subsequently positioned through the newly created stoma. The exact tracheal level, flap dimensions, incision, instruments, tube selection, and fixation method vary according to the patient's anatomy and the operating surgeon's established technique. Because this is an invasive airway procedure, the operative details should be performed only by appropriately trained clinicians in a controlled surgical setting.

One practical purpose of the flap is to establish a more defined tract between the trachea and skin. The original description emphasized suturing the inverted U-shaped tracheal flap to the skin edge, and later surgical literature has described modifications of the flap design. The technique can provide a stable stoma that facilitates tube management, but it also has potential complications associated with tracheostomy, including bleeding, infection, granulation tissue, accidental decannulation, and tracheal stenosis. Proper postoperative airway care and surveillance are therefore important.

Björk Flap Stitch/Suture

The characteristic Björk flap stitch or suture secures the tracheal flap to the skin so that the flap remains positioned as part of the tracheostoma. The original description specifically refers to suturing the inverted U-shaped flap to the skin edge. In modern practice, the exact suture material, needle type, number of stitches, and configuration may differ between surgeons and institutions. The important concept is that the flap is deliberately anchored to the skin rather than simply creating an opening without fixation.

Suture selection should follow the surgeon's operative protocol and the patient's clinical circumstances. The tracheal flap and surrounding skin require secure fixation without excessive tension or tissue injury. Tracheostomy tube stabilization is a separate consideration and is generally achieved with appropriate tube-holding methods according to institutional practice. Because incorrect suture placement can injure airway structures or compromise the stoma, the Björk flap and its fixation should not be attempted outside a properly supervised surgical procedure. Postoperative assessment is also important for identifying bleeding, infection, granulation, displacement, or other airway complications.

Björk Flap Tracheostomy CPT Code

For coding purposes, the appropriate CPT code depends on what procedure was actually performed and how it is documented. CPT 31600 describes a planned tracheostomy, while CPT 31601 is the corresponding planned tracheostomy code for a patient younger than 2 years. However, coding guidance specifically addressing a tracheostomy performed with a Björk flap has indicated that CPT 31610 may be appropriate when the procedure meets the descriptor for a tracheostomy with skin flaps. Therefore, the presence of a Björk flap should not automatically be assumed to mean that 31600 is the correct code.

The final code should be selected from the operative documentation, including whether the tracheostomy was planned or emergency, the patient's age, and whether a skin-flap technique covered by the applicable CPT descriptor was actually performed. CPT 31610 is described as a tracheostomy, fenestration procedure with skin flaps, while 31600 represents a planned tracheostomy and 31601 applies to planned tracheostomy in children younger than two years. Coding rules and payer policies can change, so professional coders should verify the current-year CPT code set and payer-specific guidance before submitting a claim.