Medical record coding is an important link in the management of medical institutions. The purpose is to systematize patients' medical information to facilitate management, diagnosis, treatment and research. In the process of medical record coding, gray coding is a very important coding method. Gray code is also called Gray code. It is a binary number system. The only difference from ordinary binary numbers is that two adjacent codes have only one different bit. This effectively solves some problems that occur in binary encoding.

The advantages of using gray codes in medical record coding are mainly reflected in two aspects. Firstly, during the transmission process, since only one bit is different, the gray code has a low transmission error rate; secondly, since the gray code only changes one bit, it can be converted to its upper level encoding faster than ordinary binary codes. , which is of great significance for the electronic processing of medical records.

In general, gray coding is used in medical record coding to improve coding accuracy and processing efficiency. This can not only greatly improve the management efficiency of medical institutions, but also facilitate doctors' medical record inquiry, diagnosis, treatment and research. Therefore, the application of gray codes will play an increasingly important role in the future management of medical institutions.