P74: Other transitory neonatal electrolyte and metabolic disturbances

P74.9: Transitory metabolic disturbance of newborn, unspecified

Various energy-acquisition processes occur in the body. The body acquires energy, for example, by breaking down nutrient elements or the body's own substances. Broken down nutrient elements are also used as building materials in the body. In this way, individual cells and tissue can be built or repaired. All of these processes together are known as metabolism.