Coding Ahead
CasePilot
Medical Coding Assistant
CaseConsultant
Instant Email Coding Consultant
Case2Code
Search and Code Lookup Tool
CareerCenter
Medical Coding Job Board
Log in Register free account
0 code page views remaining. Guest accounts are limited to 1 page view. Register free account to get 5 more views.
Log in Register free account

Official Description

Removal of lens material; aspiration technique, 1 or more stages

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

The procedure described by CPT® Code 66840 involves the removal of lens material from the eye using an aspiration technique. This surgical intervention is typically performed when there is a need to extract lens material that may be causing visual impairment or other complications. The process begins with the visualization of the eye through an operating microscope, which allows the surgeon to have a clear view of the anterior chamber of the eye. Access to this chamber is achieved by creating one or more small openings, known as paracenteses, using a needle or blade. Once access is established, an irrigation and aspiration tool is introduced into the anterior chamber through these openings. The surgeon then carefully pulls the lens material from the outer edges towards the center of the pupil, ensuring that the material is aspirated effectively. Throughout the procedure, the intraocular pressure is monitored, and if necessary, fluid may be injected to maintain normal pressure within the anterior chamber. After the lens material has been successfully removed, the instruments are withdrawn, and the surgeon checks the incision sites for any signs of fluid leakage. Depending on the condition of the incisions, sutures may be applied to ensure proper closure and healing.

© Copyright 2026 Coding Ahead. All rights reserved.

CasePilot
Have a question about CPT® Code 66840?

Get instant expert-level answers from CasePilot, our coding assistant.

Register to view content

Create a free account to unlock this content

Register to view content

Create a free account to unlock this content

Register to view content

Create a free account to unlock this content

Register to view content

Create a free account to unlock this content

Register to view content

Create a free account to unlock this content

Register to view content

Create a free account to unlock this content

CasePilot

Get instant expert-level medical coding assistance.

Ask about:
CPT Codes Guidelines Modifiers Crosswalks NCCI Edits Compliance Medicare Coverage
Example: "What is CPT code 99213?" or "Guidelines for E/M services"