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  6. 2024 ICD-10-CM Code H20
Version 2024
Non-Billable Code

2024 ICD-10-CM Diagnosis Code H20

Iridocyclitis

ICD-10-CM Code:
H20
ICD-10 Code for:
Iridocyclitis
Is Billable?
Not Valid for Submission
Code Navigator:

Code Classification

  • Diseases of the eye and adnexa
    (H00–H59)
    • Disorders of sclera, cornea, iris and ciliary body
      (H15-H22)
      • Iridocyclitis
        (H20)

H20 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of iridocyclitis. The code is not specific and is NOT valid for the year 2024 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 Applicable to Iridocyclitis

Non-specific codes like H20 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10-CM codes with a higher level of specificity when coding for iridocyclitis:

  • H20.0 for Acute and subacute iridocyclitis - NON-BILLABLE CODE

  • Use H20.00 for Unspecified acute and subacute iridocyclitis - BILLABLE CODE

  • H20.01 for Primary iridocyclitis - NON-BILLABLE CODE

  • H20.02 for Recurrent acute iridocyclitis - NON-BILLABLE CODE

  • H20.03 for Secondary infectious iridocyclitis - NON-BILLABLE CODE

  • H20.04 for Secondary noninfectious iridocyclitis - NON-BILLABLE CODE

  • H20.05 for Hypopyon - NON-BILLABLE CODE

  • H20.1 for Chronic iridocyclitis - NON-BILLABLE CODE

  • Use H20.10 for Chronic iridocyclitis, unspecified eye - BILLABLE CODE

  • Use H20.11 for Chronic iridocyclitis, right eye - BILLABLE CODE

  • Use H20.12 for Chronic iridocyclitis, left eye - BILLABLE CODE

  • Use H20.13 for Chronic iridocyclitis, bilateral - BILLABLE CODE

  • H20.2 for Lens-induced iridocyclitis - NON-BILLABLE CODE

  • Use H20.20 for Lens-induced iridocyclitis, unspecified eye - BILLABLE CODE

  • Use H20.21 for Lens-induced iridocyclitis, right eye - BILLABLE CODE

  • Use H20.22 for Lens-induced iridocyclitis, left eye - BILLABLE CODE

  • Use H20.23 for Lens-induced iridocyclitis, bilateral - BILLABLE CODE

  • H20.8 for Other iridocyclitis - NON-BILLABLE CODE

  • H20.81 for Fuchs' heterochromic cyclitis - NON-BILLABLE CODE

  • H20.82 for Vogt-Koyanagi syndrome - NON-BILLABLE CODE

  • Use H20.9 for Unspecified iridocyclitis - BILLABLE CODE

Clinical Information

  • Iridocyclitis

    acute or chronic inflammation of the iris and ciliary body characterized by exudates into the anterior chamber, discoloration of the iris, and constricted, sluggish pupil. symptoms include radiating pain, photophobia, lacrimation, and interference with vision.

  • Chronic Iridocyclitis|Chronic Uveitis

    uveitis that is usually insidious in onset, bilateral, and can be asymptomatic, most often affecting the anterior uveal tract, including the iris and ciliary body, and can result in long-term complications. it is most commonly associated with certain forms of juvenile idiopathic arthritis, but may occur independent of arthritis.

  • Iridocyclitis

    inflammation of the iris and the ciliary body.

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:

  • 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 pink eye

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

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.