H20.1Header code — not billable
Chronic iridocyclitis
- Chapter
- 7. Diseases of the eye and adnexa
- Category
- H20
- Effective date
- October 1, 2026
Related codes in category H20
H20IridocyclitisH20.0Acute and subacute iridocyclitisH20.00Unspecified acute and subacute iridocyclitisYesH20.01Primary iridocyclitisH20.011Primary iridocyclitis, right eyeYesH20.012Primary iridocyclitis, left eyeYesH20.013Primary iridocyclitis, bilateralYesH20.019Primary iridocyclitis, unspecified eyeYesH20.02Recurrent acute iridocyclitisH20.021Recurrent acute iridocyclitis, right eyeYesH20.022Recurrent acute iridocyclitis, left eyeYesH20.023Recurrent acute iridocyclitis, bilateralYes
Frequently asked questions
What is ICD-10 code H20.1?
H20.1 is an ICD-10-CM diagnosis code for Chronic iridocyclitis.
Is H20.1 a billable code?
No. H20.1 is a category/header code, not billable on its own — use one of its more specific child codes instead.
What ICD-10-CM chapter is H20.1 in?
H20.1 falls under Chapter 7: Diseases of the eye and adnexa.
When did H20.1 become effective?
H20.1 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to H20.1?
H20.1 belongs to category H20, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.