ICD-10-CM category
H21: Other disorders of iris and ciliary body
Codes under H21 (Other disorders of iris and ciliary body). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| H21.0 | Hyphema | — |
| H21.0 | Hyphema | — |
| H21.00 | Hyphema, unspecified eye | ✓ |
| H21.00 | Hyphema, unspecified eye | ✓ |
| H21.01 | Hyphema, right eye | ✓ |
| H21.01 | Hyphema, right eye | ✓ |
| H21.1 | Other vascular disorders of iris and ciliary body | — |
| H21.1 | Other vascular disorders of iris and ciliary body | — |
| H21.1X | Other vascular disorders of iris and ciliary body | — |
| H21.1X | Other vascular disorders of iris and ciliary body | — |
| H21.1X1 | Other vascular disorders of iris and ciliary body, right eye | ✓ |
| H21.1X1 | Other vascular disorders of iris and ciliary body, right eye | ✓ |
| H21.1X2 | Other vascular disorders of iris and ciliary body, left eye | ✓ |
| H21.1X2 | Other vascular disorders of iris and ciliary body, left eye | ✓ |
| H21.1X3 | Other vascular disorders of iris and ciliary body, bilateral | ✓ |
| H21.1X3 | Other vascular disorders of iris and ciliary body, bilateral | ✓ |
| H21.1X9 | Other vascular disorders of iris and ciliary body, unspecified eye | ✓ |
| H21.1X9 | Other vascular disorders of iris and ciliary body, unspecified eye | ✓ |
| H21.02 | Hyphema, left eye | ✓ |
| H21.02 | Hyphema, left eye | ✓ |
| H21.2 | Degeneration of iris and ciliary body | — |
| H21.2 | Degeneration of iris and ciliary body | — |
| H21.03 | Hyphema, bilateral | ✓ |
| H21.03 | Hyphema, bilateral | ✓ |
| H21.3 | Cyst of iris, ciliary body and anterior chamber | — |
| H21.3 | Cyst of iris, ciliary body and anterior chamber | — |
| H21.4 | Pupillary membranes | — |
| H21.4 | Pupillary membranes | — |
| H21.5 | Other and unspecified adhesions and disruptions of iris and ciliary body | — |
| H21.5 | Other and unspecified adhesions and disruptions of iris and ciliary body | — |
| H21.8 | Other specified disorders of iris and ciliary body | — |
| H21.8 | Other specified disorders of iris and ciliary body | — |
| H21.9 | Unspecified disorder of iris and ciliary body | ✓ |
| H21.9 | Unspecified disorder of iris and ciliary body | ✓ |
| H21.21 | Degeneration of chamber angle | — |
| H21.21 | Degeneration of chamber angle | — |
| H21.22 | Degeneration of ciliary body | — |
| H21.22 | Degeneration of ciliary body | — |
| H21.23 | Degeneration of iris (pigmentary) | — |
| H21.23 | Degeneration of iris (pigmentary) | — |
| H21.24 | Degeneration of pupillary margin | — |
| H21.24 | Degeneration of pupillary margin | — |
| H21.25 | Iridoschisis | — |
| H21.25 | Iridoschisis | — |
| H21.26 | Iris atrophy (essential) (progressive) | — |
| H21.26 | Iris atrophy (essential) (progressive) | — |
| H21.27 | Miotic pupillary cyst | — |
| H21.27 | Miotic pupillary cyst | — |
| H21.29 | Other iris atrophy | ✓ |
| H21.29 | Other iris atrophy | ✓ |
| H21.30 | Idiopathic cysts of iris, ciliary body or anterior chamber | — |
| H21.30 | Idiopathic cysts of iris, ciliary body or anterior chamber | — |
| H21.31 | Exudative cysts of iris or anterior chamber | — |
| H21.31 | Exudative cysts of iris or anterior chamber | — |
| H21.32 | Implantation cysts of iris, ciliary body or anterior chamber | — |
| H21.32 | Implantation cysts of iris, ciliary body or anterior chamber | — |
| H21.33 | Parasitic cyst of iris, ciliary body or anterior chamber | — |
| H21.33 | Parasitic cyst of iris, ciliary body or anterior chamber | — |
| H21.34 | Primary cyst of pars plana | — |
| H21.34 | Primary cyst of pars plana | — |
| H21.35 | Exudative cyst of pars plana | — |
| H21.35 | Exudative cyst of pars plana | — |
| H21.40 | Pupillary membranes, unspecified eye | ✓ |
| H21.40 | Pupillary membranes, unspecified eye | ✓ |
| H21.41 | Pupillary membranes, right eye | ✓ |
| H21.41 | Pupillary membranes, right eye | ✓ |
| H21.42 | Pupillary membranes, left eye | ✓ |
| H21.42 | Pupillary membranes, left eye | ✓ |
| H21.43 | Pupillary membranes, bilateral | ✓ |
| H21.43 | Pupillary membranes, bilateral | ✓ |
| H21.50 | Unspecified adhesions of iris | — |
| H21.50 | Unspecified adhesions of iris | — |
| H21.51 | Anterior synechiae (iris) | — |
| H21.51 | Anterior synechiae (iris) | — |
| H21.52 | Goniosynechiae | — |
| H21.52 | Goniosynechiae | — |
| H21.53 | Iridodialysis | — |
| H21.53 | Iridodialysis | — |
| H21.54 | Posterior synechiae (iris) | — |
| H21.54 | Posterior synechiae (iris) | — |
| H21.55 | Recession of chamber angle | — |
| H21.55 | Recession of chamber angle | — |
| H21.56 | Pupillary abnormalities | — |
| H21.56 | Pupillary abnormalities | — |
| H21.81 | Floppy iris syndrome | ✓ |
| H21.81 | Floppy iris syndrome | ✓ |
| H21.82 | Plateau iris syndrome (post-iridectomy) (postprocedural) | ✓ |
| H21.82 | Plateau iris syndrome (post-iridectomy) (postprocedural) | ✓ |
| H21.89 | Other specified disorders of iris and ciliary body | ✓ |
| H21.89 | Other specified disorders of iris and ciliary body | ✓ |
| H21.211 | Degeneration of chamber angle, right eye | ✓ |
| H21.211 | Degeneration of chamber angle, right eye | ✓ |
| H21.212 | Degeneration of chamber angle, left eye | ✓ |
| H21.212 | Degeneration of chamber angle, left eye | ✓ |
| H21.213 | Degeneration of chamber angle, bilateral | ✓ |
| H21.213 | Degeneration of chamber angle, bilateral | ✓ |
| H21.219 | Degeneration of chamber angle, unspecified eye | ✓ |
| H21.219 | Degeneration of chamber angle, unspecified eye | ✓ |
| H21.221 | Degeneration of ciliary body, right eye | ✓ |
| H21.221 | Degeneration of ciliary body, right eye | ✓ |
| H21.222 | Degeneration of ciliary body, left eye | ✓ |
| H21.222 | Degeneration of ciliary body, left eye | ✓ |
| H21.223 | Degeneration of ciliary body, bilateral | ✓ |
| H21.223 | Degeneration of ciliary body, bilateral | ✓ |
| H21.229 | Degeneration of ciliary body, unspecified eye | ✓ |
| H21.229 | Degeneration of ciliary body, unspecified eye | ✓ |
| H21.231 | Degeneration of iris (pigmentary), right eye | ✓ |
| H21.231 | Degeneration of iris (pigmentary), right eye | ✓ |
| H21.232 | Degeneration of iris (pigmentary), left eye | ✓ |
| H21.232 | Degeneration of iris (pigmentary), left eye | ✓ |
| H21.233 | Degeneration of iris (pigmentary), bilateral | ✓ |
| H21.233 | Degeneration of iris (pigmentary), bilateral | ✓ |
| H21.239 | Degeneration of iris (pigmentary), unspecified eye | ✓ |
| H21.239 | Degeneration of iris (pigmentary), unspecified eye | ✓ |
| H21.241 | Degeneration of pupillary margin, right eye | ✓ |
| H21.241 | Degeneration of pupillary margin, right eye | ✓ |
| H21.242 | Degeneration of pupillary margin, left eye | ✓ |
| H21.242 | Degeneration of pupillary margin, left eye | ✓ |
| H21.243 | Degeneration of pupillary margin, bilateral | ✓ |
| H21.243 | Degeneration of pupillary margin, bilateral | ✓ |
| H21.249 | Degeneration of pupillary margin, unspecified eye | ✓ |
| H21.249 | Degeneration of pupillary margin, unspecified eye | ✓ |
| H21.251 | Iridoschisis, right eye | ✓ |
| H21.251 | Iridoschisis, right eye | ✓ |
| H21.252 | Iridoschisis, left eye | ✓ |
| H21.252 | Iridoschisis, left eye | ✓ |
| H21.253 | Iridoschisis, bilateral | ✓ |
| H21.253 | Iridoschisis, bilateral | ✓ |
| H21.259 | Iridoschisis, unspecified eye | ✓ |
| H21.259 | Iridoschisis, unspecified eye | ✓ |
| H21.261 | Iris atrophy (essential) (progressive), right eye | ✓ |
| H21.261 | Iris atrophy (essential) (progressive), right eye | ✓ |
| H21.262 | Iris atrophy (essential) (progressive), left eye | ✓ |
| H21.262 | Iris atrophy (essential) (progressive), left eye | ✓ |
| H21.263 | Iris atrophy (essential) (progressive), bilateral | ✓ |
| H21.263 | Iris atrophy (essential) (progressive), bilateral | ✓ |
| H21.269 | Iris atrophy (essential) (progressive), unspecified eye | ✓ |
| H21.269 | Iris atrophy (essential) (progressive), unspecified eye | ✓ |
| H21.271 | Miotic pupillary cyst, right eye | ✓ |
| H21.271 | Miotic pupillary cyst, right eye | ✓ |
| H21.272 | Miotic pupillary cyst, left eye | ✓ |
| H21.272 | Miotic pupillary cyst, left eye | ✓ |
| H21.273 | Miotic pupillary cyst, bilateral | ✓ |
| H21.273 | Miotic pupillary cyst, bilateral | ✓ |
| H21.279 | Miotic pupillary cyst, unspecified eye | ✓ |
| H21.279 | Miotic pupillary cyst, unspecified eye | ✓ |
| H21.301 | Idiopathic cysts of iris, ciliary body or anterior chamber, right eye | ✓ |
| H21.301 | Idiopathic cysts of iris, ciliary body or anterior chamber, right eye | ✓ |
| H21.302 | Idiopathic cysts of iris, ciliary body or anterior chamber, left eye | ✓ |
| H21.302 | Idiopathic cysts of iris, ciliary body or anterior chamber, left eye | ✓ |
| H21.303 | Idiopathic cysts of iris, ciliary body or anterior chamber, bilateral | ✓ |
| H21.303 | Idiopathic cysts of iris, ciliary body or anterior chamber, bilateral | ✓ |
| H21.309 | Idiopathic cysts of iris, ciliary body or anterior chamber, unspecified eye | ✓ |
| H21.309 | Idiopathic cysts of iris, ciliary body or anterior chamber, unspecified eye | ✓ |
| H21.311 | Exudative cysts of iris or anterior chamber, right eye | ✓ |
| H21.311 | Exudative cysts of iris or anterior chamber, right eye | ✓ |
| H21.312 | Exudative cysts of iris or anterior chamber, left eye | ✓ |
| H21.312 | Exudative cysts of iris or anterior chamber, left eye | ✓ |
| H21.313 | Exudative cysts of iris or anterior chamber, bilateral | ✓ |
| H21.313 | Exudative cysts of iris or anterior chamber, bilateral | ✓ |
| H21.319 | Exudative cysts of iris or anterior chamber, unspecified eye | ✓ |
| H21.319 | Exudative cysts of iris or anterior chamber, unspecified eye | ✓ |
| H21.321 | Implantation cysts of iris, ciliary body or anterior chamber, right eye | ✓ |
| H21.321 | Implantation cysts of iris, ciliary body or anterior chamber, right eye | ✓ |
| H21.322 | Implantation cysts of iris, ciliary body or anterior chamber, left eye | ✓ |
| H21.322 | Implantation cysts of iris, ciliary body or anterior chamber, left eye | ✓ |
| H21.323 | Implantation cysts of iris, ciliary body or anterior chamber, bilateral | ✓ |
| H21.323 | Implantation cysts of iris, ciliary body or anterior chamber, bilateral | ✓ |
| H21.329 | Implantation cysts of iris, ciliary body or anterior chamber, unspecified eye | ✓ |
| H21.329 | Implantation cysts of iris, ciliary body or anterior chamber, unspecified eye | ✓ |
| H21.331 | Parasitic cyst of iris, ciliary body or anterior chamber, right eye | ✓ |
| 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 | ✓ |
| H21.332 | Parasitic cyst of iris, ciliary body or anterior chamber, left eye | ✓ |
| H21.333 | Parasitic cyst of iris, ciliary body or anterior chamber, bilateral | ✓ |
| H21.333 | Parasitic cyst of iris, ciliary body or anterior chamber, bilateral | ✓ |
| H21.339 | Parasitic cyst of iris, ciliary body or anterior chamber, unspecified eye | ✓ |
| H21.339 | Parasitic cyst of iris, ciliary body or anterior chamber, unspecified eye | ✓ |
| H21.341 | Primary cyst of pars plana, right eye | ✓ |
| H21.341 | Primary cyst of pars plana, right eye | ✓ |
| H21.342 | Primary cyst of pars plana, left eye | ✓ |
| H21.342 | Primary cyst of pars plana, left eye | ✓ |
| H21.343 | Primary cyst of pars plana, bilateral | ✓ |
| H21.343 | Primary cyst of pars plana, bilateral | ✓ |
| H21.349 | Primary cyst of pars plana, unspecified eye | ✓ |
| H21.349 | Primary cyst of pars plana, unspecified eye | ✓ |
| H21.351 | Exudative cyst of pars plana, right eye | ✓ |
| H21.351 | Exudative cyst of pars plana, right eye | ✓ |
| H21.352 | Exudative cyst of pars plana, left eye | ✓ |
| H21.352 | Exudative cyst of pars plana, left eye | ✓ |
| H21.353 | Exudative cyst of pars plana, bilateral | ✓ |
| H21.353 | Exudative cyst of pars plana, bilateral | ✓ |
| H21.359 | Exudative cyst of pars plana, unspecified eye | ✓ |
| H21.359 | Exudative cyst of pars plana, unspecified eye | ✓ |
| H21.501 | Unspecified adhesions of iris, right eye | ✓ |
| H21.501 | Unspecified adhesions of iris, right eye | ✓ |
| H21.502 | Unspecified adhesions of iris, left eye | ✓ |
| H21.502 | Unspecified adhesions of iris, left eye | ✓ |
| H21.503 | Unspecified adhesions of iris, bilateral | ✓ |
| H21.503 | Unspecified adhesions of iris, bilateral | ✓ |
| H21.509 | Unspecified adhesions of iris and ciliary body, unspecified eye | ✓ |
| H21.509 | Unspecified adhesions of iris and ciliary body, unspecified eye | ✓ |
| H21.511 | Anterior synechiae (iris), right eye | ✓ |
| H21.511 | Anterior synechiae (iris), right eye | ✓ |
| H21.512 | Anterior synechiae (iris), left eye | ✓ |
| H21.512 | Anterior synechiae (iris), left eye | ✓ |
| H21.513 | Anterior synechiae (iris), bilateral | ✓ |
| H21.513 | Anterior synechiae (iris), bilateral | ✓ |
| H21.519 | Anterior synechiae (iris), unspecified eye | ✓ |
| H21.519 | Anterior synechiae (iris), unspecified eye | ✓ |
| H21.521 | Goniosynechiae, right eye | ✓ |
| H21.521 | Goniosynechiae, right eye | ✓ |
| H21.522 | Goniosynechiae, left eye | ✓ |
| H21.522 | Goniosynechiae, left eye | ✓ |
| H21.523 | Goniosynechiae, bilateral | ✓ |
| H21.523 | Goniosynechiae, bilateral | ✓ |
| H21.529 | Goniosynechiae, unspecified eye | ✓ |
| H21.529 | Goniosynechiae, unspecified eye | ✓ |
| H21.531 | Iridodialysis, right eye | ✓ |
| H21.531 | Iridodialysis, right eye | ✓ |
| H21.532 | Iridodialysis, left eye | ✓ |
| H21.532 | Iridodialysis, left eye | ✓ |
| H21.533 | Iridodialysis, bilateral | ✓ |
| H21.533 | Iridodialysis, bilateral | ✓ |
| H21.539 | Iridodialysis, unspecified eye | ✓ |
| H21.539 | Iridodialysis, unspecified eye | ✓ |
| H21.541 | Posterior synechiae (iris), right eye | ✓ |
| H21.541 | Posterior synechiae (iris), right eye | ✓ |
| H21.542 | Posterior synechiae (iris), left eye | ✓ |
| H21.542 | Posterior synechiae (iris), left eye | ✓ |
| H21.543 | Posterior synechiae (iris), bilateral | ✓ |
| H21.543 | Posterior synechiae (iris), bilateral | ✓ |
| H21.549 | Posterior synechiae (iris), unspecified eye | ✓ |
| H21.549 | Posterior synechiae (iris), unspecified eye | ✓ |
| H21.551 | Recession of chamber angle, right eye | ✓ |
| H21.551 | Recession of chamber angle, right eye | ✓ |
| H21.552 | Recession of chamber angle, left eye | ✓ |
| H21.552 | Recession of chamber angle, left eye | ✓ |
| H21.553 | Recession of chamber angle, bilateral | ✓ |
| H21.553 | Recession of chamber angle, bilateral | ✓ |
| H21.559 | Recession of chamber angle, unspecified eye | ✓ |
| H21.559 | Recession of chamber angle, unspecified eye | ✓ |
| H21.561 | Pupillary abnormality, right eye | ✓ |
| H21.561 | Pupillary abnormality, right eye | ✓ |
| H21.562 | Pupillary abnormality, left eye | ✓ |
| H21.562 | Pupillary abnormality, left eye | ✓ |
| H21.563 | Pupillary abnormality, bilateral | ✓ |
| H21.563 | Pupillary abnormality, bilateral | ✓ |
| H21.569 | Pupillary abnormality, unspecified eye | ✓ |
| H21.569 | Pupillary abnormality, unspecified eye | ✓ |
Frequently asked questions
What is ICD-10-CM code H21?
H21 is an ICD-10-CM category covering Other disorders of iris and ciliary body. It contains 250 more specific diagnosis codes, 194 of which are billable.
Is H21 a billable code?
No — H21 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example H21.0 — Hyphema). 194 of the 250 codes under H21 are billable.
What codes fall under H21?
H21 includes H21.0, H21.0, H21.00, H21.00, H21.01, plus 245 more. See the full list with descriptions and billable status above.
More free billing tools: all ICD-10 categories · ICD-10 search · denial codes · Medicare fees
Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
Code the diagnosis right
Join providers across the country delivering modern virtual care with CareNiva. Free to start, ready in minutes.
100% Satisfaction Guaranteed — try it risk-free