In simple words: This procedure involves removing a cataract and inserting an artificial lens in a complex case, along with placing one or more tiny drainage devices to lower eye pressure.

Extracapsular cataract removal with insertion of intraocular lens prosthesis (1-stage procedure), manual or mechanical technique (eg, irrigation and aspiration or phacoemulsification), complex, requiring devices or techniques not generally used in routine cataract surgery (eg, iris expansion device, suture support for intraocular lens, or primary posterior capsulorrhexis) or performed on patients in the amblyogenic developmental stage; with insertion of intraocular (eg, trabecular meshwork, supraciliary, suprachoroidal) anterior segment aqueous drainage device, without extraocular reservoir, internal approach, one or more.

Example 1: A patient with a complicated cataract and glaucoma undergoes this procedure to address both conditions simultaneously., A child in the amblyogenic developmental stage requires complex cataract removal with IOL placement and drainage device insertion to manage glaucoma and prevent vision impairment., A patient with a cataract and insufficient capsular support requires suture support for the IOL in addition to the drainage device insertion.

Documentation should include details of complexity, like use of an iris expansion device, suture support for the lens, primary posterior capsulorrhexis, diagnosis of glaucoma and/or amblyogenic stage, type and number of drainage devices used, and medical necessity for combined procedure.