Coloboma of lens

This code describes a congenital defect of the lens of the eye, characterized by a notch or fissure, typically in the inferior aspect. This malformation results from incomplete closure of the embryonic optic fissure during development. It can lead to visual impairment depending on its size and location.

Use this code when documentation explicitly states a diagnosis of coloboma affecting the lens. This condition is usually identified during an ophthalmic examination, often in infancy or early childhood. Supporting documentation should include findings from a slit lamp examination or other ophthalmological assessments confirming the lens defect.

• Differentiate from coloboma affecting other ocular structures (e.g., iris, retina) as these have distinct codes.
• Always review the medical record to ensure the coloboma is specifically of the lens and not a generalized ocular coloboma.
• Consider co-occurring congenital anomalies, as coloboma of the lens can be part of broader syndromes.