In this paper, we describe the design, creation and testing of a new Web-Based Electronic Health Record for Out-of-Hours (OOH) use with special emphasis on coding matters. The context is the Belgian health system, in which a patients' health record keeper is a specific GP, to whom the OOH reports, generated by any colleague who meets this patient during week-end or night shifts should converge. The system enables structured and secured acquisition of the records, intermediate storage and transmission to the GP's who keep the respective records.

In the first part of the paper, the design and implementation of this web-based application are highlighted in view of the SOEP registration methodology and explaining how coding was implemented, so that the users apply it seamlessly.

Currently, the web-based OOH health record has been deployed and is en effective use by GP's of the Domus Medica association.

In the second part, a first evaluation is made, based on feedback by a group of pilot users, this evaluation shows good acceptance by field users.