Will there be a new TBI classification system in the near future?
The current classification of traumatic brain injury severity falls into three general categories or classifications known as: (1) Mild; (2) Moderate; and (3) Severe. There is no uniform definition. While multiple professional organizations use different definitions and sometimes conflicting criteria, a TBI generally depends on duration of loss of consciousness, length of post-injury amnesia, Glasgow Coma Scale score, or presence of intracranial abnormality. Within each category exists a range. For example, loss of consciousness for the mild category is 0 to 30 minutes, the moderate category greater than 30 minutes up to 24 hours, and the severe category is greater than 24 hours.
There are shortcomings to this grading system because it does not consider other factors relevant to patient outcome. As a result, there is a strong desire in the medical and scientific communities to move away from the current model of mild, moderate, and severe. In 2025, a new TBI classification framework called CBI-M was announced and is starting trials in trauma centers. This proposed new model will use clinical, biomarker blood tests, imaging, and modifiers based on the patient’s individual factors like existing medical conditions, environmental factors, and how the injury occurred. It’s unclear what labels this new CBI-M framework may assign for severity as it will likely go through further refinement and validation.
The desire to move away from these simple labels recognizes that the current severity ratings are not necessarily an accurate reflection of the severity of the effects a brain injury has on a person’s functioning or the outcome for a person. Mild doesn’t mean the consequences are mild. Instead, a mild TBI can have very serious and debilitating life changing consequences that permanently interfere with work and enjoyment of life.
As the science surrounding TBI continues to evolve, understanding these complexities and changes are important for proper diagnosis, treatment, rehabilitation, and protecting the legal rights of brain injury victims. We are committed to working with expert doctors in the field of TBI and staying informed about the latest brain injury science to protect our client’s rights.
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If you found this post helpful, you might also like to explore the other topics listed below and the many other topics in our comprehensive Safety & Prevention Guide, Brain Injury Guide, and Bike Injury Guide.