The benefit is payable upon application of a member who is not receiving a benefit under either Section 16-133, Section 16-149.1 or Section 16-149.2. The benefit shall be granted only if the member is found by medical examination to be incapacitated to perform the duties of his or her position as a teacher and only if the commencement of the incapacity occurred while the member was employed as a teacher or within 90 days of such employment.
A member shall be considered disabled only when the System has received (1) a written certificate by at least 2 licensed and practicing physicians designated by the System, certifying that the member is disabled and unable to properly perform the duties of his or her position at the time of disability, except in the case of disability due to pregnancy where a written certificate from only one licensed and practicing physician is required; (2) a written statement from the employer certifying that the member is not eligible to receive a salary; and (3) a certification from the member that he or she is not and has not been engaged in gainful employment during the period of disability.
The benefit shall begin to accrue on the 31st day of absence from service on account of disability, except that when an application is made more than 90 days subsequent to the later of the commencement of disability or the date eligibility for salary ceases, it shall begin to accrue from the date of application, and shall be payable during the time the member does not receive a retirement annuity. The benefit is not payable to a member who is receiving or has a right to receive any salary as a teacher, or is employed in any capacity as a teacher by the employers included under this System or in an equivalent capacity in any other public or private school, college or university, except as provided in Section 16-149.6.
Service credits under the State Employees' Retirement System of Illinois, the State Universities Retirement System and the Illinois Municipal Retirement Fund shall be considered in determining the member's eligibility for a disability benefit and the total period during which the disability benefit is payable.
In addition to the above benefit, the member shall receive creditable service and credit for contributions that the member would have made in active employment during any period of disability for which benefits are paid by the System on the basis of the annual salary rate used in computing the benefit, except as provided in Section 16-149.6.
A disabled member who receives disability benefits for the maximum period specified above or who requests that the disability benefits be terminated may be retired on a disability retirement annuity.
40 ILCS 5/16-149