One of the most common type of case in Iowa workers’ comp is when a worker has preexisting back problems that are aggravated by his job duties. As the Iowa Supreme Court has stated many times:
“While a claimant is not entitled to compensation for the result of a preexisting injury or disease, its mere existence at the time of a subsequent injury is not a defense. If the claimant had a preexisting condition or disability that is materially aggravated, accelerated, worsened or lighted up so that it results in disability, claimant is entitled to recover.”
A recent example of the application of the law of preexisting conditions is set out in the December 17, 2020 Appeal Decision of Hays v. Central Iowa Fencing, Ltd. And Grinnell Select Insurance.