ICD-10 Code H18.211 – Corneal edema secondary to contact lens, right eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H18.211 – Corneal edema secondary to contact lens, right eye
What it is
This code identifies corneal swelling in the right eye caused by contact lens wear. It is used when the edema is specifically documented as secondary to contact lenses.
Clinical signs
Typical findings include blurred vision, corneal haze, and discomfort after contact lens use. Clinical features vary; refer to documentation.
When to use this code
Use H18.211 when the clinician documents corneal edema in the right eye and links it to contact lens wear. The record should clearly indicate causation, not just lens use. If laterality is right eye, this code is appropriate; check documentation if the note is unclear.
Do not use for
Do not use this code for corneal edema without a documented contact lens cause. Do not assign it for left eye or bilateral involvement unless specifically documented.
Coding tip
Confirm both the causal relationship and right-eye laterality before coding.