ICD-10 Code H53.62 – Acquired night blindness (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H53.62 – Acquired night blindness
What it is
H53.62 identifies acquired night blindness, meaning reduced vision in dim light that develops after birth. You use it when documentation shows nyctalopia or difficulty seeing at night without a congenital cause.
Clinical signs
Patients may report trouble navigating in low light, delayed adjustment from bright to dark settings, or bumping into objects at night. Clinical features vary; refer to documentation.
When to use this code
Use H53.62 when the record clearly states acquired night blindness or nyctalopia as the diagnosis. It fits outpatient, specialty, or consult notes when the provider documents dim-light vision loss without specifying a more exact underlying disorder.
If the chart links the symptom to a defined eye disease or deficiency, code the documented condition instead when instructed by the record and coding rules. Check documentation for laterality or additional ocular findings only if they are separately reported.
Do not use for
Do not use this code for congenital night blindness or for general blurred vision without mention of reduced night vision. Check documentation if the note only describes an eye disease, because the underlying diagnosis may be more appropriate.
Coding tip
Confirm that the provider documents acquired night blindness specifically; do not infer it from vague “vision problems in the dark” wording.