P90-P96: Other disorders originating in the perinatal period

P94: Disorders of muscle tone of newborn

Disorders of muscle tone in newborns are a group of conditions that can cause a baby's muscles to be either too stiff or too floppy right after birth. They can be caused by a wide range of factors, such as gene mutations, neurological abnormalities during fetal development, or birth injuries. These disorders are generally not transmissible, meaning they aren't contagious or passed from person to person. With these conditions, you might see symptoms such as a newborn seeming unusually tense or limp, showing restricted limb movements, or having feeding difficulties. Depending on the underlying cause, the progression of the disorder can vary widely. Some infants may experience improvement over time, while others may face long-term motor complications. These conditions predominantly affect the musculoskeletal system and can potentially influence the baby's overall development due to the muscular challenges.