ICD-10 Code H21.41 – Pupillary membranes, right eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H21.41 – Pupillary membranes, right eye
What it is
This code identifies a pupillary membrane affecting the right eye. It means a thin residual membrane remains across or near the pupil, which can interfere with normal light entry. Check documentation for laterality and cause.
Clinical signs
Findings may include a visible membrane over the pupil, partial pupillary obstruction, or reduced visual clarity. Clinical features vary; refer to documentation for whether the membrane is congenital, persistent, or incidental.
When to use this code
Use H21.41 when the provider documents a pupillary membrane in the right eye as the condition being evaluated or treated. It is appropriate when laterality is specified and the record does not describe a different anterior segment disorder instead. If the note is unclear, check documentation.
Do not use for
Do not use this code for left eye, bilateral, or unspecified pupillary membrane documentation. Do not assign it for other iris, lens, or corneal abnormalities unless the record specifically identifies a pupillary membrane.
Coding tip
Verify laterality in the ophthalmology note before assigning H21.41.