ICD-10 Code H52.211 – Irregular astigmatism, right eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H52.211 – Irregular astigmatism, right eye
What it is
H52.211 identifies irregular astigmatism affecting the right eye. Use it when the corneal or ocular surface curvature is uneven and causes distorted vision that is not corrected by standard spherical lenses.
Clinical signs
Typical findings include blurred or distorted vision, ghosting, glare, and reduced visual quality. Clinical features vary; refer to documentation for the specific cause or exam findings.
When to use this code
Use this code when the provider documents irregular astigmatism in the right eye, including postoperative or corneal conditions if stated. You should code it only when the right eye is clearly specified in the record. If laterality is uncertain, check documentation before assigning the code.
Do not use for
Do not use H52.211 for regular astigmatism, unspecified astigmatism, or conditions affecting only the left eye. Do not assume this code applies when the note does not clearly identify the right eye.
Coding tip
Always verify laterality and the exact wording of the eye exam note before coding H52.211.