E1

HCPCS Level II modifier that may be used with CPT or HCPCS Level II codes and a procedure or service to the upper left eyelid. Use of this modifier does not affect reimbursement, but if not used may delay payment.

E2

HCPCS Level II modifier that may be used with CPT or HCPCS Level II codes and identifies a procedure or service to the lower left eyelid. Use of this modifier does not affect reimbursement, but if not used may delay payment.

E3

HCPCS Level II modifier that may be used with CPT or HCPCS Level II codes and identifies a procedure or service to the upper right eyelid. Use of this modifier does not affect reimbursement, but if not used may delay payment.

E4

HCPCS Level II modifier that may be used with CPT or HCPCS Level II codes and identifies a procedure or service to the lower right eyelid. Use of this modifier does not affect reimbursement, but if not used may delay payment.

Early retirement age

Age stated in a pension plan that is before the normal retirement age but allows the plan participant to receive pension benefit. However, benefits received early are reduced from the amount that would have been received at normal retirement age.