ICD-10 Code H52.523 – Paresis of accommodation, bilateral (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H52.523 – Paresis of accommodation, bilateral
What it is
This code identifies reduced ability of both eyes to focus on near objects because the ciliary muscle response is weakened. It describes a binocular accommodation problem, not a refractive error.
Clinical signs
Patients may report blurred near vision, eye strain, or difficulty shifting focus from distance to reading. Clinical features vary; refer to documentation.
When to use this code
Use H52.523 when the provider documents bilateral paresis of accommodation, accommodative weakness, or similar wording affecting both eyes. It may also fit when the exam notes impaired near focusing without another more specific diagnosis. Check documentation if the laterality or cause is unclear.
Do not use for
Do not use this code for simple hyperopia, presbyopia, or unspecified blurred vision. If the record describes a different accommodative disorder or a non-bilateral finding, select the documented condition instead.
Coding tip
Confirm that the provider specifically documents bilateral accommodation paresis before assigning H52.523.