ICD-10-CM > R00-R99 > R40-R46 > R40 > R40.2 > R40.24 > R40.243 R40.243 Glasgow coma scale score 3-8 Non-Billable/Non-Specific Codes R40.2430..., unspecified timeR40.2431..., in the field [EMT or ambulance]R40.2432..., at arrival to emergency departmentR40.2433..., at hospital admissionR40.2434..., 24 hours or more after hospital admission