ICD-10-CM › H00-H59 › H15-H22 › H21.3 Cyst of iris, ciliary body and... › H21.30

H21.30

Idiopathic cysts of iris, ciliary body or anterior chamber

Not billableICD-10-CM diagnosis code.

This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.

A category header for its whole life, FY2016 onwards. It has never been valid for submission on its own.

Submit one of these 4 more specific codes instead:

  • 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
  • H21.303 Idiopathic cysts of iris, ciliary body or anterior chamber, bilateral
  • H21.309 Idiopathic cysts of iris, ciliary body or anterior chamber, unspecified eye

What has happened to this code

Every change the publisher made, from 2012 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.

  1. FY2012 Added to the draft code set draft Idiopathic cysts of iris, ciliary body or anterior chamber

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

Inherited from H21 Other disorders of iris and ciliary body

Excludes2 - not included here

  • sympathetic uveitis (H44.1-)

How CDC's index refers to this code

Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.

Codes in the same group

CodeDescriptionStatus
H21.31 Exudative cysts of iris or anterior chamber Not billable
H21.32 Implantation cysts of iris, ciliary body or anterior chamber Not billable
H21.33 Parasitic cyst of iris, ciliary body or anterior chamber Not billable
H21.34 Primary cyst of pars plana Not billable
H21.35 Exudative cyst of pars plana Not billable