H21.33 Parasitic cyst of iris, ciliary body or anterior chamberNon-billable header with 4 child codes.
H21.331 Parasitic cyst of iris, ciliary body or anterior chamber, right eyeH21.332 Parasitic cyst of iris, ciliary body or anterior chamber, left eyeH21.333 Parasitic cyst of iris, ciliary body or anterior chamber, bilateralH21.339 Parasitic cyst of iris, ciliary body or anterior chamber, unspecified eyeH21.32 Implantation cysts of iris, ciliary body or anterior chamberH21.321 Implantation cysts of iris, ciliary body or anterior chamber, right eyeH21.322 Implantation cysts of iris, ciliary body or anterior chamber, left eyeH21.323 Implantation cysts of iris, ciliary body or anterior chamber, bilateralH21.329 Implantation cysts of iris, ciliary body or anterior chamber, unspecified eyeH21.33 Parasitic cyst of iris, ciliary body or anterior chamber (this code)H21.331 Parasitic cyst of iris, ciliary body or anterior chamber, right eyeH21.332 Parasitic cyst of iris, ciliary body or anterior chamber, left eyeH21.333 Parasitic cyst of iris, ciliary body or anterior chamber, bilateralH21.339 Parasitic cyst of iris, ciliary body or anterior chamber, unspecified eyeH21.34 Primary cyst of pars plana