The physician creates an opening in the opaque posterior lens capsule of the patients right eye by cutting an inverted u shape in the tissue. the cut is made using a yag laser. the tissue within the inverted u falls down, and out of the patients field of vision. the procedure is done to improve the vision of a patient with a secondary cataract. what cpt® code is reported?

When an ophthalmologist performs a secondary cataract removal by creating an opening in the opaque posterior lens capsule of the patient's right eye by cutting an inverted u shape in the tissue. the cut is made using a YAG laser. the tissue within the inverted u falls down, and out of the patient's field of vision, the correct way to code this procedure is CPT code 66850

Current Procedural Terminology (CPT) code is a medical code describing medical, surgical, or diagnostic services designed to pass on uniform information about medical services and procedures.

If this figure is symmetric (as it seems to be) then is invariant to rotations of  90° in the plane where the center of each segment coincides with an axis, and when the axis of rotation is on the center of the figure.

So the rotation of 0°, the rotation of 90° and the rotation of 180° are possible solutions.

Here 180° because if you rotate the figure by 90° two times, you get 180°.