Age-related nuclear cataract, bilateral

This code signifies the presence of age-related opacification of the lens nucleus in both eyes. This is a common form of senile cataract, characterized by a gradual hardening and yellowing of the central portion of the crystalline lens, leading to progressive vision impairment.

Apply this code when documentation clearly indicates bilateral nuclear cataracts attributed to the aging process. This is typically supported by an ophthalmologist's examination findings, including slit-lamp biomicroscopy confirming nuclear sclerosis in both eyes. Use for patients presenting with age-related visual decline due to these bilateral lens changes.

• Ensure documentation specifies "nuclear" cataract and "bilateral" involvement; otherwise, use more specific unilateral or unspecified codes.
• Distinguish from other cataract types (e.g., cortical, subcapsular) and cataracts due to secondary causes (e.g., traumatic, diabetic).
• Sequence this code as a primary diagnosis when it is the reason for the encounter, such as for cataract evaluation or pre-operative assessment.