ICD-10 Code H18.822 – Corneal disorder due to contact lens, left eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H18.822 – Corneal disorder due to contact lens, left eye
What it is
This code identifies a corneal disorder in the left eye caused by contact lens wear. Use it when the record links the corneal problem directly to the lens.
Clinical signs
Findings may include corneal irritation, pain, redness, tearing, photophobia, or reduced vision. Clinical features vary; refer to documentation.
When to use this code
Use H18.822 when the provider documents a corneal disorder in the left eye due to contact lens use, such as lens-related keratitis or corneal injury. You should code it only when the causal connection is stated or clearly documented. Check documentation if the laterality or cause is unclear.
Do not use for
Do not use this code for nonspecific eye irritation without corneal involvement or when the disorder is in another eye. Do not assign it if contact lens use is not the documented cause.
Coding tip
Verify both laterality and the contact lens cause in the note before assigning H18.822.