Posterior dislocation of lens, left eye

This code signifies a condition where the crystalline lens of the left eye has become displaced backward, detaching from its normal position within the eye. This posterior displacement can lead to significant visual impairment and may be caused by trauma, genetic conditions, or degenerative diseases.

Use this code when documentation clearly indicates a posterior dislocation of the lens specifically affecting the left eye. This diagnosis is often supported by ophthalmological examination findings, such as slit-lamp biomicroscopy showing the lens displaced into the vitreous cavity.

• Ensure laterality is accurately documented; this code is specific to the left eye.
• Distinguish from subluxation (partial dislocation) or anterior dislocation, which have different codes.
• Always look for an underlying cause (e.g., trauma, Marfan syndrome) to code secondary diagnoses if applicable.