No
semiotology
What is the study of codes
Cryptography, cryptology.
to study about codes
Cryptology is the study of codes and ciphers while cryptography is the creating of codes and ciphers.
A person who studies codes and symbols is often referred to as a "cryptologist" if they focus on codes and ciphers, or a "semiotician" if they study signs and symbols in a broader context. In some cases, they might also be called a "symbolic analyst" or "semiotic analyst," depending on their specific area of expertise.
The study of stupidity is called monology.
The study of religion is called theology
The study of nerves is called, Neurology.
the study of life is called biology
The study of mammals is called mammalogy
The study of heat is called thermodynamics, while the study of light is called optics.