Colombia’s public hospitals, called state social health-service-providing companies come into conflict with the health promoting entities (Entidades Promotoras de Salud) and the subsidised regime administrators (Administradoras del Regimen Subsidiado - ARS) as the billing sent to these institutions by hospitals is often returned due to inconsistencies when being filled in, incurring long delays in payment for medical services provided. This article describes the public hospitals’ current situation, gives a strategy form resolving the problem so detected and formulates a practical and systematic application for correcting it.