The Charge Posting (CHG) Integration Profile is part of the IHE Radiology Technical Framework.

This profile specifies the exchange of information from the Department System Scheduler/Order Filler actor to the Charge Processor actor regarding charges associated with particular procedures, as well as communication between the ADT/Patient Registration and Charge Processor actors about patient demographics, accounts, insurance, and guarantors.  The Charge Posted Transaction contains all of the required procedure data to generate a claim. Currently, these interfaces contain fixed field formatted or HL7-style data.

The goal of including this transaction in the IHE Technical Framework is to standardize the Charge Posted Transaction to a Charge Processor, thus reducing system interface installation time between clinical systems and Charge Processors.  Additionally, the Charge Posted Transaction reduces the need of the billing system to have knowledge of the radiology internals.  The result is that the Charge Processor will receive more complete, timely and accurate data.

Source:  IHE Radiology Technical Framework rev 8.