Biomechanical characteristics of concussive and sub-concussive impacts in youth sports athletes: A systematic review and meta-analysis

Orchard Sports Injury and Illness Classification System (OSIICS) Version 15

“…In Version 13, HZN was added to reflect a head impact that was assessed medically but was not deemed to be a concussion, given the importance of recording not only diagnosed concussions but also sub-concussive head impacts as part of injury surveillance. 4 …”

“…A further weakness is the provision of many codes associated with major brain trauma, such as the various types of brain hemorrhage, but no code for a medically-assessed head impact not diagnosed as a concussion (sub-concussive brain impact), which is now considered very important in sport. 4 The ICD remains poor with regards to appropriate codes for many other sport-related injuries (and other musculoskeletal injury scenarios), 5 hence sports injury surveillance coding has remained independent. 6 Although OSIICS and Sports Medicine Diagnostic Coding System (SMDCS) are far preferable to ICD for sports injury coding, the ICD (with over 30,000 codes) has superior ability to provide specific codes for illness.…”