ICD-10 Code H54.52A1 – Low vision left eye category 1, normal vision right eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H54.52A1 – Low vision left eye category 1, normal vision right eye
What it is
This code identifies low vision in the left eye at category 1 severity, with normal vision in the right eye. Use it when documentation specifies unilateral visual impairment and the fellow eye is normal.
Clinical signs
Findings usually include reduced visual acuity in the left eye that remains better than blindness, while the right eye is documented as normal. Clinical features vary; refer to documentation.
When to use this code
Use H54.52A1 when the provider documents low vision affecting only the left eye and explicitly states normal vision in the right eye. It is appropriate for ophthalmology, optometry, or problem-list documentation that names the laterality and severity. Check documentation if the record does not distinguish the eyes clearly.
Do not use for
Do not use this code for blindness, bilateral low vision, or unspecified visual loss. Do not assume it applies if the chart only says “poor vision” without laterality or category detail.
Coding tip
Confirm both laterality and severity before assigning H54.52A1.