modifiers for opthalmology

Can you please explain the use of modifiers 26 and 76 for CPT® codes 92136 and 76519 when done bilaterally?
Procedure code 92226 only uses modifier RT and LT when it is done.

Thank you.

re: modifiers for opthalmology

These two procedures are unique in that they have a bilateral technical component and a unilateral professional component. Instead they will require the code without a modifier for one eye and MOD-26 for the second eye.
76519- TC Ophthalmic Biometry Codes w/ IOL power Calculation (this includes TC both eyes)

92136-TC Optical Coherence Biometry (OCB) (this includes TC both eyes)
CPT® Codes 76519 and 92136:
Procedure codes 76519 and 92136 global and technical (TC) components are classified as bilateral procedures where the bilateral adjustment does not apply, the Physician Fee Schedule amount for a global procedure represents payment for the technical components (TC) for both eyes and one professional component (26). The technical component procedures (TC) represent payment for both eyes. These
procedures should be reported on a single claim line without the 50 or RT/LT modifiers and if applicable one additional line for the opposite professional component (26).
The professional component (26) is classified as a unilateral procedure; the Physicians Fee Schedule amount represents payment for one eye. When only the professional component (26) procedure is performed on both eyes on the same DOS the service may be reported on a single claim line with the 50 modifier or on two separate claim lines with the RT and LT modifiers. When the procedure is performed on one eye per DOS report the service on a single claim line with the RT or LT modifier.