ICD-10-CM > R00-R99 > R40-R46 > R40 > R40.2 > R40.22 > R40.221 R40.221 Coma scale, best verbal response, none Non-Billable/Non-Specific Applicable To Coma scale verbal score of 1 Codes R40.2210..., unspecified timeR40.2211..., in the field [EMT or ambulance]R40.2212..., at arrival to emergency departmentR40.2213..., at hospital admissionR40.2214..., 24 hours or more after hospital admission