H.R. 10919 is a proposed bill to amend Title III of the Public Health Service Act. Its title describes a goal: ensuring certain safety-net providers are not required to pay more than the 340B ceiling price for covered outpatient drugs when they buy them. The bill text and a short title were not supplied, so the exact legal changes cannot be verified. It was referred to the House Energy and Commerce Committee and is not law.
No publicly available information gives an estimate of public or private costs.