H21 - Other disorders of iris and ciliary body

Version 2023
ICD-10:H21
Short Description:Other disorders of iris and ciliary body
Long Description:Other disorders of iris and ciliary body
Status: Not Valid for Submission
Version:ICD-10-CM 2023
Code Classification:
  • Diseases of the eye and adnexa (H00–H59)
    • Disorders of sclera, cornea, iris and ciliary body (H15-H22)
      • Other disorders of iris and ciliary body (H21)

H21 is a non-specific and non-billable ICD-10 code code, consider using a code with a higher level of specificity for a diagnosis of other disorders of iris and ciliary body. The code is not specific and is NOT valid for the year 2023 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Specific Coding for Other disorders of iris and ciliary body

Non-specific codes like H21 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10 codes with a higher level of specificity when coding for other disorders of iris and ciliary body:

  • NON-BILLABLE CODE - H21.0 for Hyphema
  • BILLABLE CODE - Use H21.00 for Hyphema, unspecified eye
  • BILLABLE CODE - Use H21.01 for Hyphema, right eye
  • BILLABLE CODE - Use H21.02 for Hyphema, left eye
  • BILLABLE CODE - Use H21.03 for Hyphema, bilateral
  • NON-BILLABLE CODE - H21.1 for Other vascular disorders of iris and ciliary body
  • NON-BILLABLE CODE - H21.1X for Other vascular disorders of iris and ciliary body
  • NON-BILLABLE CODE - H21.2 for Degeneration of iris and ciliary body
  • NON-BILLABLE CODE - H21.21 for Degeneration of chamber angle
  • NON-BILLABLE CODE - H21.22 for Degeneration of ciliary body
  • NON-BILLABLE CODE - H21.23 for Degeneration of iris (pigmentary)
  • NON-BILLABLE CODE - H21.24 for Degeneration of pupillary margin
  • NON-BILLABLE CODE - H21.25 for Iridoschisis
  • NON-BILLABLE CODE - H21.26 for Iris atrophy (essential) (progressive)
  • NON-BILLABLE CODE - H21.27 for Miotic pupillary cyst
  • BILLABLE CODE - Use H21.29 for Other iris atrophy
  • NON-BILLABLE CODE - H21.3 for Cyst of iris, ciliary body and anterior chamber
  • NON-BILLABLE CODE - H21.30 for Idiopathic cysts of iris, ciliary body or anterior chamber
  • NON-BILLABLE CODE - H21.31 for Exudative cysts of iris or anterior chamber
  • NON-BILLABLE CODE - H21.32 for Implantation cysts of iris, ciliary body or anterior chamber
  • NON-BILLABLE CODE - H21.33 for Parasitic cyst of iris, ciliary body or anterior chamber
  • NON-BILLABLE CODE - H21.34 for Primary cyst of pars plana
  • NON-BILLABLE CODE - H21.35 for Exudative cyst of pars plana
  • NON-BILLABLE CODE - H21.4 for Pupillary membranes
  • BILLABLE CODE - Use H21.40 for Pupillary membranes, unspecified eye
  • BILLABLE CODE - Use H21.41 for Pupillary membranes, right eye
  • BILLABLE CODE - Use H21.42 for Pupillary membranes, left eye
  • BILLABLE CODE - Use H21.43 for Pupillary membranes, bilateral
  • NON-BILLABLE CODE - H21.5 for Other and unspecified adhesions and disruptions of iris and ciliary body
  • NON-BILLABLE CODE - H21.50 for Unspecified adhesions of iris
  • NON-BILLABLE CODE - H21.51 for Anterior synechiae (iris)
  • NON-BILLABLE CODE - H21.52 for Goniosynechiae
  • NON-BILLABLE CODE - H21.53 for Iridodialysis
  • NON-BILLABLE CODE - H21.54 for Posterior synechiae (iris)
  • NON-BILLABLE CODE - H21.55 for Recession of chamber angle
  • NON-BILLABLE CODE - H21.56 for Pupillary abnormalities
  • NON-BILLABLE CODE - H21.8 for Other specified disorders of iris and ciliary body
  • BILLABLE CODE - Use H21.81 for Floppy iris syndrome
  • BILLABLE CODE - Use H21.82 for Plateau iris syndrome (post-iridectomy) (postprocedural)
  • BILLABLE CODE - Use H21.89 for Other specified disorders of iris and ciliary body
  • BILLABLE CODE - Use H21.9 for Unspecified disorder of iris and ciliary body

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more. The following references are applicable to this diagnosis code:


Type 2 Excludes

Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.

Patient Education


Eye Diseases

Some eye problems are minor and don't last long. But some can lead to a permanent loss of vision.

Common eye problems include:

Your best defense is to have regular checkups, because eye diseases do not always have symptoms. Early detection and treatment could prevent vision loss. See an eye care professional right away if you have a sudden change in vision, if everything looks dim, or if you see flashes of light. Other symptoms that need quick attention are pain, double vision, fluid coming from the eye, and inflammation.

NIH: National Eye Institute


[Learn More in MedlinePlus]

Code History