ICD-10-CM > R00-R99 > R40-R46 > R40 > R40.2 > R40.22 R40.22 Coma scale, best verbal response Non-Billable/Non-Specific Codes R40.221Coma scale, best verbal response, noneR40.2210..., 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 admissionR40.222Coma scale, best verbal response, incomprehensible wordsR40.2220..., unspecified timeR40.2221..., in the field [EMT or ambulance]R40.2222..., at arrival to emergency departmentR40.2223..., at hospital admissionR40.2224..., 24 hours or more after hospital admissionR40.223Coma scale, best verbal response, inappropriate wordsR40.2230..., unspecified timeR40.2231..., in the field [EMT or ambulance]R40.2232..., at arrival to emergency departmentR40.2233..., at hospital admissionR40.2234..., 24 hours or more after hospital admissionR40.224Coma scale, best verbal response, confused conversationR40.2240..., unspecified timeR40.2241..., in the field [EMT or ambulance]R40.2242..., at arrival to emergency departmentR40.2243..., at hospital admissionR40.2244..., 24 hours or more after hospital admissionR40.225Coma scale, best verbal response, orientedR40.2250..., unspecified timeR40.2251..., in the field [EMT or ambulance]R40.2252..., at arrival to emergency departmentR40.2253..., at hospital admissionR40.2254..., 24 hours or more after hospital admission