1. A system configured to translate messages that include medical record content communicated between a healthcare entity and a vendor entity, the system comprising: physical non-transitory electronic storage configured to store: correspondence information, the correspondence information specifying correspondences between medical record formats of electronic medical records and healthcare entities, including a first correspondence between a first medical record format and a first healthcare entity and a second correspondence between a second medical record format and a second healthcare entity, the individual medical record formats being customized by and specific to the corresponding individual healthcare entities, the customizations being directed to how medical record content is represented within the electronic medical records and locations of the medical record content within the electronic medical records, such that the first medical record format represents the medical record content in the electronic medical records differently from the second medical record format and the first medical record format presents the medical record content in different locations in the medial records than the second medical record format; translation rule information, the translation rule information specifying sets of rules used to translate messages between medical record formats and a standardized format, the medical record formats including the first medical record format and the second medical record format; and configuration record information, the configuration record information including configuration records specifying individual combinations of rules in the sets of rules to translate messages between individual medical record formats and the standardized format, the configuration records including a first configuration record for the first medical record format and a second configuration record for the second medical record format, the first configuration record specifying a first combination of rules to translate messages between the first medical record format and the standardized format, the second configuration record specifying a second combination of rules to translate messages between the second medical record format and the standardized format, wherein the first combination of rules are different from the second combination of rules, and wherein the first combination of rules includes different ones of the rules than the second combination of rules; and one or more physical computer processors configured by computer readable instructions to: receive an inbound message including medical record content, the inbound message indicating the first healthcare entity and a vendor entity; determine, from the correspondence information and the configuration record information, which configuration record to apply as a translation of the inbound message to the standardized format based upon the medical record content of the inbound message and the indication of the first healthcare entity; responsive to determining the first healthcare entity corresponds to the first medical record format and the first combination of rules being used to translate messages between the first medical record format and the standardized format, access and apply the first combination of rules to the inbound message to translate the medical record content in the inbound message from the first medical record format to the standardized format; and effectuate transmission of the medical record content in the inbound message in the standardized format to the vendor entity.