| H21 | Other disorders of iris and ciliary body | NON-BILLABLE CODE |
| H21.0 | Hyphema | NON-BILLABLE CODE |
| H21.00 | Hyphema, unspecified eye | BILLABLE CODE |
| H21.01 | Hyphema, right eye | BILLABLE CODE |
| H21.02 | Hyphema, left eye | BILLABLE CODE |
| H21.03 | Hyphema, bilateral | BILLABLE CODE |
| H21.1 | Other vascular disorders of iris and ciliary body | NON-BILLABLE CODE |
| H21.1X | Other vascular disorders of iris and ciliary body | NON-BILLABLE CODE |
| H21.1X1 | Other vascular disorders of iris and ciliary body, right eye | BILLABLE CODE |
| H21.1X2 | Other vascular disorders of iris and ciliary body, left eye | BILLABLE CODE |
| H21.1X3 | Other vascular disorders of iris and ciliary body, bilateral | BILLABLE CODE |
| H21.1X9 | Other vascular disorders of iris and ciliary body, unspecified eye | BILLABLE CODE |
| H21.2 | Degeneration of iris and ciliary body | NON-BILLABLE CODE |
| H21.21 | Degeneration of chamber angle | NON-BILLABLE CODE |
| H21.211 | Degeneration of chamber angle, right eye | BILLABLE CODE |
| H21.212 | Degeneration of chamber angle, left eye | BILLABLE CODE |
| H21.213 | Degeneration of chamber angle, bilateral | BILLABLE CODE |
| H21.219 | Degeneration of chamber angle, unspecified eye | BILLABLE CODE |
| H21.22 | Degeneration of ciliary body | NON-BILLABLE CODE |
| H21.221 | Degeneration of ciliary body, right eye | BILLABLE CODE |
| H21.222 | Degeneration of ciliary body, left eye | BILLABLE CODE |
| H21.223 | Degeneration of ciliary body, bilateral | BILLABLE CODE |
| H21.229 | Degeneration of ciliary body, unspecified eye | BILLABLE CODE |
| H21.23 | Degeneration of iris (pigmentary) | NON-BILLABLE CODE |
| H21.231 | Degeneration of iris (pigmentary), right eye | BILLABLE CODE |
| H21.232 | Degeneration of iris (pigmentary), left eye | BILLABLE CODE |
| H21.233 | Degeneration of iris (pigmentary), bilateral | BILLABLE CODE |
| H21.239 | Degeneration of iris (pigmentary), unspecified eye | BILLABLE CODE |
| H21.24 | Degeneration of pupillary margin | NON-BILLABLE CODE |
| H21.241 | Degeneration of pupillary margin, right eye | BILLABLE CODE |
| H21.242 | Degeneration of pupillary margin, left eye | BILLABLE CODE |
| H21.243 | Degeneration of pupillary margin, bilateral | BILLABLE CODE |
| H21.249 | Degeneration of pupillary margin, unspecified eye | BILLABLE CODE |
| H21.25 | Iridoschisis | NON-BILLABLE CODE |
| H21.251 | Iridoschisis, right eye | BILLABLE CODE |
| H21.252 | Iridoschisis, left eye | BILLABLE CODE |
| H21.253 | Iridoschisis, bilateral | BILLABLE CODE |
| H21.259 | Iridoschisis, unspecified eye | BILLABLE CODE |
| H21.26 | Iris atrophy (essential) (progressive) | NON-BILLABLE CODE |
| H21.261 | Iris atrophy (essential) (progressive), right eye | BILLABLE CODE |
| H21.262 | Iris atrophy (essential) (progressive), left eye | BILLABLE CODE |
| H21.263 | Iris atrophy (essential) (progressive), bilateral | BILLABLE CODE |
| H21.269 | Iris atrophy (essential) (progressive), unspecified eye | BILLABLE CODE |
| H21.27 | Miotic pupillary cyst | NON-BILLABLE CODE |
| H21.272 | Miotic pupillary cyst, left eye | BILLABLE CODE |
| H21.273 | Miotic pupillary cyst, bilateral | BILLABLE CODE |
| H21.279 | Miotic pupillary cyst, unspecified eye | BILLABLE CODE |
| H21.29 | Other iris atrophy | BILLABLE CODE |
| H21.3 | Cyst of iris, ciliary body and anterior chamber | NON-BILLABLE CODE |
| H21.30 | Idiopathic cysts of iris, ciliary body or anterior chamber | NON-BILLABLE CODE |
| H21.301 | Idiopathic cysts of iris, ciliary body or anterior chamber, right eye | BILLABLE CODE |
| H21.302 | Idiopathic cysts of iris, ciliary body or anterior chamber, left eye | BILLABLE CODE |
| H21.303 | Idiopathic cysts of iris, ciliary body or anterior chamber, bilateral | BILLABLE CODE |
| H21.309 | Idiopathic cysts of iris, ciliary body or anterior chamber, unspecified eye | BILLABLE CODE |
| H21.31 | Exudative cysts of iris or anterior chamber | NON-BILLABLE CODE |
| H21.311 | Exudative cysts of iris or anterior chamber, right eye | BILLABLE CODE |
| H21.312 | Exudative cysts of iris or anterior chamber, left eye | BILLABLE CODE |
| H21.313 | Exudative cysts of iris or anterior chamber, bilateral | BILLABLE CODE |
| H21.319 | Exudative cysts of iris or anterior chamber, unspecified eye | BILLABLE CODE |
| H21.32 | Implantation cysts of iris, ciliary body or anterior chamber | NON-BILLABLE CODE |
| H21.321 | Implantation cysts of iris, ciliary body or anterior chamber, right eye | BILLABLE CODE |
| H21.322 | Implantation cysts of iris, ciliary body or anterior chamber, left eye | BILLABLE CODE |
| H21.323 | Implantation cysts of iris, ciliary body or anterior chamber, bilateral | BILLABLE CODE |
| H21.329 | Implantation cysts of iris, ciliary body or anterior chamber, unspecified eye | BILLABLE CODE |
| H21.33 | Parasitic cyst of iris, ciliary body or anterior chamber | NON-BILLABLE CODE |
| H21.331 | Parasitic cyst of iris, ciliary body or anterior chamber, right eye | BILLABLE CODE |
| H21.332 | Parasitic cyst of iris, ciliary body or anterior chamber, left eye | BILLABLE CODE |
| H21.333 | Parasitic cyst of iris, ciliary body or anterior chamber, bilateral | BILLABLE CODE |
| H21.339 | Parasitic cyst of iris, ciliary body or anterior chamber, unspecified eye | BILLABLE CODE |
| H21.34 | Primary cyst of pars plana | NON-BILLABLE CODE |
| H21.341 | Primary cyst of pars plana, right eye | BILLABLE CODE |
| H21.342 | Primary cyst of pars plana, left eye | BILLABLE CODE |
| H21.343 | Primary cyst of pars plana, bilateral | BILLABLE CODE |
| H21.349 | Primary cyst of pars plana, unspecified eye | BILLABLE CODE |
| H21.35 | Exudative cyst of pars plana | NON-BILLABLE CODE |
| H21.351 | Exudative cyst of pars plana, right eye | BILLABLE CODE |
| H21.352 | Exudative cyst of pars plana, left eye | BILLABLE CODE |
| H21.353 | Exudative cyst of pars plana, bilateral | BILLABLE CODE |
| H21.359 | Exudative cyst of pars plana, unspecified eye | BILLABLE CODE |
| H21.4 | Pupillary membranes | NON-BILLABLE CODE |
| H21.40 | Pupillary membranes, unspecified eye | BILLABLE CODE |
| H21.41 | Pupillary membranes, right eye | BILLABLE CODE |
| H21.42 | Pupillary membranes, left eye | BILLABLE CODE |
| H21.43 | Pupillary membranes, bilateral | BILLABLE CODE |
| H21.5 | Other and unspecified adhesions and disruptions of iris and ciliary body | NON-BILLABLE CODE |
| H21.50 | Unspecified adhesions of iris | NON-BILLABLE CODE |
| H21.501 | Unspecified adhesions of iris, right eye | BILLABLE CODE |
| H21.502 | Unspecified adhesions of iris, left eye | BILLABLE CODE |
| H21.503 | Unspecified adhesions of iris, bilateral | BILLABLE CODE |
| H21.509 | Unspecified adhesions of iris and ciliary body, unspecified eye | BILLABLE CODE |
| H21.51 | Anterior synechiae (iris) | NON-BILLABLE CODE |
| H21.511 | Anterior synechiae (iris), right eye | BILLABLE CODE |
| H21.512 | Anterior synechiae (iris), left eye | BILLABLE CODE |
| H21.513 | Anterior synechiae (iris), bilateral | BILLABLE CODE |
| H21.519 | Anterior synechiae (iris), unspecified eye | BILLABLE CODE |
| H21.52 | Goniosynechiae | NON-BILLABLE CODE |
| H21.521 | Goniosynechiae, right eye | BILLABLE CODE |
| H21.522 | Goniosynechiae, left eye | BILLABLE CODE |
| H21.523 | Goniosynechiae, bilateral | BILLABLE CODE |
| H21.529 | Goniosynechiae, unspecified eye | BILLABLE CODE |
| H21.53 | Iridodialysis | NON-BILLABLE CODE |
| H21.531 | Iridodialysis, right eye | BILLABLE CODE |
| H21.532 | Iridodialysis, left eye | BILLABLE CODE |
| H21.533 | Iridodialysis, bilateral | BILLABLE CODE |
| H21.539 | Iridodialysis, unspecified eye | BILLABLE CODE |
| H21.54 | Posterior synechiae (iris) | NON-BILLABLE CODE |
| H21.541 | Posterior synechiae (iris), right eye | BILLABLE CODE |
| H21.542 | Posterior synechiae (iris), left eye | BILLABLE CODE |
| H21.543 | Posterior synechiae (iris), bilateral | BILLABLE CODE |
| H21.549 | Posterior synechiae (iris), unspecified eye | BILLABLE CODE |
| H21.55 | Recession of chamber angle | NON-BILLABLE CODE |
| H21.551 | Recession of chamber angle, right eye | BILLABLE CODE |
| H21.552 | Recession of chamber angle, left eye | BILLABLE CODE |
| H21.553 | Recession of chamber angle, bilateral | BILLABLE CODE |
| H21.559 | Recession of chamber angle, unspecified eye | BILLABLE CODE |
| H21.56 | Pupillary abnormalities | NON-BILLABLE CODE |
| H21.561 | Pupillary abnormality, right eye | BILLABLE CODE |
| H21.562 | Pupillary abnormality, left eye | BILLABLE CODE |
| H21.563 | Pupillary abnormality, bilateral | BILLABLE CODE |
| H21.569 | Pupillary abnormality, unspecified eye | BILLABLE CODE |
| H21.8 | Other specified disorders of iris and ciliary body | NON-BILLABLE CODE |
| H21.81 | Floppy iris syndrome | BILLABLE CODE |
| H21.82 | Plateau iris syndrome (post-iridectomy) (postprocedural) | BILLABLE CODE |
| H21.89 | Other specified disorders of iris and ciliary body | BILLABLE CODE |
| H21.9 | Unspecified disorder of iris and ciliary body | BILLABLE CODE |
