366.9
ICD-9-CMThis code signifies an opacification of the natural lens of the eye where the specific type or cause of the cataract has not been identified or documented. It represents a general diagnosis of lens clouding that impairs vision.
This code is appropriate when the medical record clearly indicates the presence of a cataract but lacks further specificity regarding its morphology (e.g., nuclear, cortical, subcapsular) or etiology (e.g., senile, traumatic, congenital). It should be used when the physician's documentation states "cataract" without additional descriptive terms.
AI-generated reference. Verify against official guidelines.
Code History