ICD-11 classes
09 Diseases of the visual system
Disorders of the eyeball - anterior segment
Functional disorders of the pupil
9B01 — Disorders of the efferent pupillary system
9B01.3 — Iris sphincter disorders

ICD-11 9B01.3 — Iris sphincter disorders

This refers to disorders of the muscle in the part of the eye called the iris. It encircles the pupil of the iris, appropriate to its function as a constrictor of the pupil.

The diagnosis includes nothing.

The diagnosis excludes nothing.

It has no clarifying diagnoses.