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R40.23 - Coma scale, best motor response


The ICD 10 Code for Coma scale, best motor response is listed as R40.23.
Additional information concerning this code and description can be found below including ICD 9 crosswalks / GEMS, chapter information, and DRGs where available.

ICD 10 CM Field Value
Diagnosis Code: R40.23
Description: Coma scale, best motor response
  • The following appropriate 7th character is to be added to subcategory R40.23-:
  • 0 - unspecified time
  • 1 - in the field [EMT or ambulance]
  • 2 - at arrival to emergency department
  • 3 - at hospital admission
  • 4 - 24 hours or more after hospital admission
Chapter Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
Block Symptoms and signs involving cognition, perception, emotional state and behavior (R40-R46)
Parent R40.2 - Coma
ICD-10-CM Children (deeper level / typically more specific) of R40.23:
R40.231 - Coma scale, best motor response, none
R40.232 - Coma scale, best motor response, extension
R40.233 - Coma scale, best motor response, abnormal
R40.234 - Coma scale, best motor response, flexion withdrawal
R40.235 - Coma scale, best motor response, localizes pain
R40.236 - Coma scale, best motor response, obeys commands
ICD-10-CM Siblings (same level / similar specificity) of R40.23:
R40.20 - Unspecified coma
R40.21 - Coma scale, eyes open
R40.22 - Coma scale, best verbal response
R40.24 - Glasgow coma scale, total score