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33 Parasitic cyst of iris, ciliary body or anterior chamber
- H21.331 Parasitic cyst of iris, ciliary body or anterior chamber, right eye
- H21.332 Parasitic cyst of iris, ciliary body or anterior chamber, left eye
- H21.333 Parasitic cyst of iris, ciliary body or anterior chamber, bilateral
- H21.339 Parasitic cyst of iris, ciliary body or anterior chamber, unspecified eye
- H21.34 Primary cyst of pars plana
- H21.341 Primary cyst of pars plana, right eye
- H21.342 Primary cyst of pars plana, left eye
- H21.343 Primary cyst of pars plana, bilateral
- H21.349 Primary cyst of pars plana, unspecified eye
- H21.35 Exudative cyst of pars plana
- H21.351 Exudative cyst of pars plana, right eye
- H21.352 Exudative cyst of pars plana, left eye
- H21.353 Exudative cyst of pars plana, bilateral
- H21.359 Exudative cyst of pars plana, unspecified eye
- H21.4 Pupillary membranes
- Iris bomb?
- Pupillary occlusion
- Pupillary seclusion
- Excludes1: congenital pupillary membranes (Q13.8)
- H21.40 Pupillary membranes, unspecified eye
- H21.41 Pupillary membranes, right eye
- H21.42 Pupillary membranes, left eye
- H21.43 Pupillary membranes, bilateral
- H21.5 Other and unspecified adhesions and disruptions of iris and ciliary body
- Excludes1: corectopia (Q13.2)
- H21.50 Unspecified adhesions of iris
- Synechia (iris) NOS
- H21.501 Unspecified adhesions of iris, right eye
- H21.502 Unspecified adhesions of iris, left eye
- H21.503 Unspecified adhesions of iris, bilateral
- H21.509 Unspecified adhesions of iris and ciliary body, unspecified eye
- H21.51 Anterior synechiae (iris)
- H21.511 Anterior synechiae (iris), right eye
- H21.512 Anterior synechiae (iris), left eye
- H21.513 Anterior synechiae (iris), bilateral
- H21.519 Anterior synechiae (iris), unspecified eye
- H21.52 Goniosynechiae
- H21.