ICD-10 Code H11.449 – Conjunctival Cysts, Unspecified Eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H11.449 – Conjunctival cysts, unspecified eye
What it is
Use this code for a cyst in the conjunctiva when the eye is not specified. It refers to a fluid-filled sac on the clear membrane covering the white of the eye.
Clinical signs
Patients may have a visible, translucent bump on the conjunctiva, with mild irritation, foreign-body sensation, or tearing. Clinical features vary; refer to documentation.
When to use this code
Assign H11.449 when the provider documents a conjunctival cyst but does not identify the right or left eye. Use it for outpatient or inpatient records that clearly describe the lesion as conjunctival and cystic. If laterality is documented, code that more specific option instead.
Do not use for
Do not use this code for eyelid cysts, pinguecula, or other conjunctival masses that are not cysts. Check documentation if the lesion is described only as a growth, swelling, or cyst elsewhere in the eye.
Coding tip
If the note does not state laterality, H11.449 is the appropriate unspecified-eye code.