Other congenital malformations of iris

This code represents various congenital structural anomalies of the iris that are not otherwise specified or classified under more specific ICD-10-CM codes. These malformations are present at birth and can affect the iris's shape, size, or integrity, potentially impacting pupillary function or visual acuity. Examples include iris hypoplasia, coloboma not elsewhere classified, or other dysplastic conditions of the iris.

Use this code when documentation clearly indicates a congenital malformation of the iris that doesn't fit more specific codes like aniridia (Q13.1) or congenital absence of iris (Q13.0). This code is appropriate for conditions such as iris dysgenesis, atypical iris colobomas, or other congenital structural defects of the iris identified by an ophthalmologist. Documentation should specify the congenital nature of the iris anomaly.

• Do not use this code for acquired iris conditions; always confirm the congenital origin.
• Review documentation carefully to ensure the specific iris malformation is not better represented by a more precise ICD-10-CM code (e.g., Q13.0 for congenital absence, Q13.1 for aniridia).
• Code any associated visual disturbances or complications (e.g., amblyopia, glaucoma) separately as secondary diagnoses.