Non-Billable / Non-Specific Code
ICD-10-CM H00 is the diagnosis code for Hordeolum and chalazion. This code falls under the section "Disorders of eyelid, lacrimal system and orbit" 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 H00 sits in the ICD-10-CM classification helps ensure proper coding:
No, H00 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
H00 is the ICD-10-CM diagnosis code for "Hordeolum and chalazion". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
H00 is located in Section H00-H05 — "Disorders of eyelid, lacrimal system and orbit" within Chapter 7 of the ICD-10-CM Tabular List.
H00 has 2 sub-code(s) that provide more specific detail: H00.0, H00.1.
Use H00 when the patients documented diagnosis matches "Hordeolum and chalazion" 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 Hordeolum and chalazion is H00.
No, H00 is non-billable. Use a more specific sub-code for primary diagnosis billing.
H00 is in Chapter 7 of the ICD-10-CM Tabular List.
Yes, H00 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.