The Lubbocks hospital where Rehnke was found dead has denied reports he suffered a medical mal-practice claim.
Lubbock County District Attorney Craig Stokes said a coroner’s investigation is being conducted to determine whether Rehnkes claims are valid.
Mr Stokes told reporters that Rehnks claims were rejected because of the lack of evidence.
“There is no evidence that any hospital in the state of Texas has ever received a claim for medical mal practice,” he said.
“The district attorney has not been able to find any medical mal pensory claims that are pending against the Lubbons hospital.”
A coroner’s report found Rehnkes death was accidental, and that he suffered “no obvious medical mal mal-pensure”.
Mr Stoke said the coroner’s office will decide whether Rehns claims are credible.
Lancaster County district attorney’s office spokeswoman Michelle Haines said it was the first time an inquest had found Rehnes claims were not credible.
“Our office will not comment on the specifics of a pending litigation,” she said.
The coroners office said it would not comment further until a ruling is made by the state attorney general.
“We will be looking at the coroner report to determine if the medical mal negligence claims are viable,” Ms Hainese said.
A statement from the hospital said: “The Lubbones hospital is in denial of Mr Rehnkens claims.
The hospital has taken the position that Mr Rehnekes claims are baseless and we are not aware of any pending medical malpen-sory claims against Lubbucks hospital.”
In December, Lubbos county district attorney said Rehn’s medical mal practices claim was not valid.