ICD-10 Code H18.611 – Keratoconus, stable, right eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H18.611 – Keratoconus, stable, right eye
What it is
This code identifies stable keratoconus affecting the right eye. It means the cornea has a cone-like shape, but the condition is not currently worsening.
Clinical signs
Typical findings include corneal thinning and irregular astigmatism on exam or corneal imaging. Vision may be distorted, but the key point is that the right eye condition is documented as stable.
When to use this code
Use this code when the provider documents keratoconus in the right eye and explicitly states it is stable. It is appropriate for follow-up visits, monitoring, or routine eye care when no progression is noted. Check documentation if laterality or stability is unclear.
Do not use for
Do not use this code if the keratoconus is active, worsening, or not specified as stable. Do not assign it for left eye, bilateral disease, or nonspecific corneal disorders.
Coding tip
Verify both laterality and stability in the ophthalmology note before coding H18.611.