CPT® Code 67331

Add-On Code

Strabismus surgery on patient with previous eye surgery or injury that did not involve the extraocular muscles (List separately in addition to code for primary procedure)

Strabismus surgery, as described by CPT® Code 67331, is a specialized surgical procedure performed on patients who have a history of previous eye surgery or injury that did not involve the extraocular muscles. This type of surgery is considered technically more challenging due to the presence of scar tissue and potential adhesions from prior interventions. The procedure begins with an incision made in the conjunctiva, which is the thin membrane covering the white part of the eye, allowing access to the affected extraocular muscle. During the surgery, the surgeon carefully exposes the muscle insertion site, releasing any scar tissue and adhesions that may have formed as a result of the previous surgery or injury. Additionally, any old suture material may be removed to facilitate the current surgical intervention. Following these preparatory steps, the surgeon proceeds with the primary strabismus procedure, which may involve recession, resection, or other corrective techniques to realign the eye muscles. It is important to note that this code is used in conjunction with the primary procedure code, as it is reported separately to account for the complexities involved in operating on a previously affected eye.