Table 2.

Defined groups of procedures (left) and included procedures and OPS codes for each group (right)

Group		Procedures (OPS codes)
Filtration surgery	Classic	Goniotrepanation, Trabeculectomy (5–131.00, 5.131.01, 5–131.0x)
	Implant-based	PreserFlo/ XEN (5–131.63)
Bleb revision		Bleb revision (5–131.40)
MIGS	ACA implants	iStent/ Hydrus (5–131.61)
	Suprachoroidal implants	MINIject (5–131.62)
	Trabeculotomy	Excimer Laser Trabeculotomy (5–133.80) Trabectome (5–133.81) Other ab interno trabeculotomies (5–133.8x)
Non-penetrating procedures		Deep sclerectomy (5–134.1, 5–134.10, 5–134.11) Viscocanaloplasty (5–134.2)
Glaucoma Drainage Implants		Ahmed/ Baerveldt/ Paul GDI (5–131.64)
Cyclodestructive procedures		Cyclocryocoagulation (5–132.1) Cyclophotocoagulation (5–132.2, 5–132.20, 5–132.21, 5–132.22, 5–132.2x)