La. Civ. Code art. 3203

Current with changes from the 2024 legislative session effective on or before 7/1/2024, from Acts 2,3, 6-535, and 580-647
Section 3203 - Amount due for expenses, fixed by contract or by judge

The accounts relating to these expenses must be fixed by the judge, in case of dispute, after hearing testimony as to the value of the services rendered or care afforded, or as to the true value of the medicines supplied, unless there has been a contract between the parties, in which case it must be observed.

La. C.C. § 3203