H21.331 Parasitic cyst of iris, ciliary body or anterior chamber, right eyeBillable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.
Defines the logic of DRG(s) 121-122 in MDC 02.
360.13 Parasitic endophthalmitis NOS (approximate)H21.321 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 chamberH21.331 Parasitic cyst of iris, ciliary body or anterior chamber, right eye (this code)H21.332 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 planaH21.341 Primary cyst of pars plana, right eye