H20.12
✓ BillableChronic iridocyclitis, left eye
Diseases of the eye and adnexa (H00-H59)
📋 Code Instructions
inherited- • code for any associated cataract (H26.21-)
Clinical Description
ICD-10-CM code H20.12 represents chronic iridocyclitis, left eye. This code falls under the Diseases of the eye and adnexa (H00-H59) classification. It is a billable/specific code valid for HIPAA-covered transactions as of October 1, 2025 (FY2026). This code can be used to indicate a diagnosis for reimbursement purposes on insurance claims.
This is a 6-character code at the 5th level of specificity. This is the most specific code available in this subcategory.
Frequently Asked Questions
What is ICD-10 code H20.12?
ICD-10-CM code H20.12 is "Chronic iridocyclitis, left eye". It belongs to the category: Diseases of the eye and adnexa (H00-H59).
Is H20.12 a billable ICD-10 code?
Yes, H20.12 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
Can H20.12 be coded with other codes?
H20.12 has 1 Excludes2 note(s). These conditions can be coded together if both are documented in the patient record.
Related Codes in H20.1
Other codes in the same category that may be relevant for differential coding:
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Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)