T90-T98: Sequelae of injuries, of poisoning and of other consequences of external causes

T91: Sequelae of injuries of neck and trunk

The group of conditions referred to as Sequelae of injuries of neck and trunk pertains to long-term conditions that arise as a consequence of previous injuries to these areas. These remnants of past harm can occur after the initial injury has healed, with symptoms appearing weeks, months, or even years later. They can be an array of conditions, ranging from persistent aches and pains to more complex functional problems, depending on the severity and location of the original injury. Some common sequelae include chronic back or neck pain, limited flexibility, or mobility issues. The underlying causes of these ongoing problems often involve damage to muscles, nerves, or the spinal column in the neck or trunk region. The progression of these conditions varies greatly, as does the extent to which an individual's health and daily life are affected.