ICD-10-CM Code H21.3

Cyst of iris, ciliary body and anterior chamber

Version 2021 Non-Billable Code

Not Valid for Submission

H21.3 is a "header" nonspecific and non-billable code code, consider using a code with a higher level of specificity for a diagnosis of cyst of iris, ciliary body and anterior chamber. The code is NOT valid for the year 2021 for the submission of HIPAA-covered transactions.

ICD-10:H21.3
Short Description:Cyst of iris, ciliary body and anterior chamber
Long Description:Cyst of iris, ciliary body and anterior chamber

Consider the following ICD-10 codes with a higher level of specificity:

  • H21.30 - Idiopathic cysts of iris, ciliary body or anterior chamber
  • 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
  • H21.31 - Exudative cysts of iris or anterior chamber
  • H21.311 - Exudative cysts of iris or anterior chamber, right eye
  • H21.312 - Exudative cysts of iris or anterior chamber, left eye
  • H21.313 - Exudative cysts of iris or anterior chamber, bilateral
  • H21.319 - Exudative cysts of iris or anterior chamber, unspecified eye
  • H21.32 - Implantation cysts of iris, ciliary body or anterior chamber
  • 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
  • H21.323 - Implantation cysts of iris, ciliary body or anterior chamber, bilateral
  • H21.329 - Implantation cysts of iris, ciliary body or anterior chamber, unspecified eye
  • H21.33 - 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

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 guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code H21.3:

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.
  • miotic pupillary cyst H21.27

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)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021

Information for Patients


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

  • Refractive errors
  • Cataracts - clouded lenses
  • Optic nerve disorders, including glaucoma
  • Retinal disorders - problems with the nerve layer at the back of the eye
  • Macular degeneration - a disease that destroys sharp, central vision
  • Diabetic eye problems
  • Conjunctivitis - an infection also known as pinkeye

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

  • Anisocoria (Medical Encyclopedia)
  • Choroidal dystrophies (Medical Encyclopedia)
  • Coloboma of the iris (Medical Encyclopedia)
  • Episcleritis (Medical Encyclopedia)
  • Eye and orbit ultrasound (Medical Encyclopedia)
  • Eye burning - itching and discharge (Medical Encyclopedia)
  • Eye pain (Medical Encyclopedia)
  • Eye redness (Medical Encyclopedia)
  • Fluorescein angiography (Medical Encyclopedia)
  • Fluorescein eye stain (Medical Encyclopedia)
  • Heterochromia (Medical Encyclopedia)
  • Ophthalmoscopy (Medical Encyclopedia)
  • Orbit CT scan (Medical Encyclopedia)
  • Orbital pseudotumor (Medical Encyclopedia)
  • Photophobia (Medical Encyclopedia)
  • Pinguecula (Medical Encyclopedia)
  • Pterygium (Medical Encyclopedia)
  • Pupil - white spots (Medical Encyclopedia)
  • Scleritis (Medical Encyclopedia)
  • Slit-lamp exam (Medical Encyclopedia)
  • Standard ophthalmic exam (Medical Encyclopedia)
  • Subconjunctival hemorrhage (Medical Encyclopedia)
  • Uveitis (Medical Encyclopedia)

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