ICD-10-CM H20 is the diagnosis code for Iridocyclitis. This code falls under the section "Disorders of sclera, cornea, iris and ciliary body" within Chapter 7 — Diseases of the eye and adnexa (H00-H59). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Always refer to the official ICD-10-CM Tabular List for complete coding guidelines. Ensure documentation supports the specificity of the code selected. When in doubt, consult a certified medical coder or the latest CMS guidelines.
Understanding where H20 sits in the ICD-10-CM classification helps ensure proper coding:
No, H20 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
H20 is the ICD-10-CM diagnosis code for "Iridocyclitis". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
H20 is located in Section H15-H22 — "Disorders of sclera, cornea, iris and ciliary body" within Chapter 7 of the ICD-10-CM Tabular List.
H20 has 5 sub-code(s) that provide more specific detail: H20.0, H20.1, H20.2, H20.8, H20.9.
Use H20 when the patients documented diagnosis matches "Iridocyclitis" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Iridocyclitis is H20.
No, H20 is non-billable. Use a more specific sub-code for primary diagnosis billing.
H20 is in Chapter 7 of the ICD-10-CM Tabular List.
Yes, H20 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.