When bills are drawn up for emergency medical services with the esQlab.online application, corresponding ASHIP billing records for data transfer are generated directly after final approval by the doctor. While a doctor is preparing his invoice, online-based validation of data records is automatically carried out based on ASHIP linked master data and plausibility catalogues. The software therefore maps unclear input data provided by the doctor to well-defined output data. It is also possible to automatically transfer patient data stored on an insurance card into the patient data field on the billing form or to store it in the card reader for retrieval when entering a case in the future without having to enter it manually.