Cystic eyeball

This code describes a congenital anomaly where the eye fails to develop properly, resulting in a cystic structure that may or may not contain rudimentary ocular tissues. It represents a severe form of developmental malformation of the globe, often associated with other ocular or systemic abnormalities.

Assign this code when documentation clearly indicates a diagnosis of a cystic eyeball, which is a congenital malformation. This typically occurs in newborns or infants, and the diagnosis is often made through imaging studies such as ultrasound or MRI, or direct ophthalmological examination.

• Differentiate from anophthalmia (absence of the eye) or microphthalmia (abnormally small eye), as these have distinct codes.
• Always review the medical record for associated congenital anomalies, as additional codes may be necessary to fully capture the patient's condition.
• Ensure the documentation specifies "cystic" to support the use of this particular code, rather than a more general malformation.