H33: Retinal detachments and breaks
H33.1: Retinoschisis and retinal cysts

excludes1
congenital retinoschisis (Q14.1)
microcystoid degeneration of retina (H35.42-)
H33.10: Unspecified retinoschisis
H33.11: Cyst of ora serrata
H33.12: Parasitic cyst of retina
H33.19: Other retinoschisis and retinal cysts

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