A-Scan (IOL Measurement) – Billing Guide

A-scan biometry is essential before cataract surgery.

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🔹 What is A-Scan?

Measures:

• Axial length of eye
• Helps calculate intraocular lens (IOL)

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🔹 CPT Codes

• 76519 – Ophthalmic biometry (A-scan + calculation)
• 92136 – Optical biometry (modern method)

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🔹 Billing Rules

• Usually done once per eye before surgery
• Included in pre-op planning
• May fall under global surgical package

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🔹 Common Mistakes

• Billing multiple times without medical reason
• Missing laterality (RT/LT)