Promotion, discharge, demotion, or suspension — absence for medically related disability not considered.

When supported by the verification of the attending physician that an absence is necessary in the best interest of the health and well-being of the employee, an absence for medically related disability shall not be considered in actions for promotion, discharge, demotion, or suspension of the employee. [C77, 79, 81, §79.2 ] C93, §70A.2