Sec. 9.04. INELIGIBILITY FOR DISABILITY PENSION. A member is not eligible for a disability pension if the board determines that the member's disability results from:

(1) addiction to narcotics or hallucinogenic drugs;

(2) an injury suffered while engaged in a felonious or criminal act or enterprise;

(3) a self-inflicted injury;

(4) voluntary or involuntary service in the armed forces of any nation; or

(5) an absence in excess of three months for which the member received no earnings from the municipality, unless the absence was due to sickness or accident that resulted in disability.