It's called the Z codes
Z codes are a special group of codes provided in ICD-10-CM for the reporting of factors influencing health status and contact with the health services.
True the heart like any muscle strengthens when you use it
The answer is B: fat gives your body energy to function, while muscle mass is used only to perform strenuous activity. This option is only correct because the statement includes the words, "muscle mass." If it was only "muscle," then it would be wrong.
