ICD-10 Code H21.272 – Miotic pupillary cyst, left eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H21.272 – Miotic pupillary cyst, left eye
What it is
This code identifies a miotic pupillary cyst affecting the left eye. It refers to a cystic lesion associated with the pupil or pupillary margin, documented on the left side.
Clinical signs
Clinical features vary; refer to documentation. Findings may include a visible cyst near the pupil, abnormal pupillary contour, or an incidental ophthalmic exam finding.
When to use this code
Use H21.272 when the provider documents a miotic pupillary cyst in the left eye. Code it for a confirmed left-sided finding on examination, imaging, or specialist assessment. If laterality is not documented, check documentation before assigning a code.
Do not use for
Do not use this code for right eye, bilateral, or unspecified pupillary cysts. It also should not be used for other anterior segment lesions unless the record specifically identifies a miotic pupillary cyst.
Coding tip
Confirm laterality in the ophthalmology note before coding, because H21.272 is specific to the left eye.