ICD-10 Code H50.52 – Exophoria (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H50.52 – Exophoria
What it is
Exophoria is a latent outward eye deviation that appears when binocular vision is disrupted. The eyes usually stay aligned, but one eye tends to drift outward when fusion is broken.
Clinical signs
Common findings include intermittent outward drift, eye strain, headache, or blurred vision, especially with near work. Clinical features vary; refer to documentation.
When to use this code
Use H50.52 when the provider documents exophoria, latent exotropia, or a similar outward phoria on exam. It may apply during routine vision assessment, orthoptic evaluation, or follow-up for binocular vision complaints. Check documentation if the record is unclear.
Do not use for
Do not use this code for manifest exotropia, where the eye is visibly turned outward, or for nonspecific visual symptoms without a documented phoria. Check documentation.
Coding tip
Assign the code only when the chart clearly states exophoria or an equivalent documented finding.