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ICD-10-CM Codes R00-R99 R40-R46 R40

ICD-10-CM Diagnosis Code R40

Somnolence, stupor and coma

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Excludes-1 for R40:

  • neonatal coma (P91.5)

  • somnolence, stupor and coma in diabetes (E08-E13)

  • somnolence, stupor and coma in hepatic failure (K72.-)

  • somnolence, stupor and coma in hypoglycemia (nondiabetic) (E15)

Codes Hierarchy:

    • R40  Somnolence, stupor and coma
      • R40.2 Coma
        • R40.20  Unspecified coma
        • R40.21 Coma scale, eyes open
          • R40.211  Coma scale, eyes open, never
          • R40.212  Coma scale, eyes open, to pain
          • R40.213  Coma scale, eyes open, to sound
          • R40.214  Coma scale, eyes open, spontaneous
        • R40.22 Coma scale, best verbal response
          • R40.221  Coma scale, best verbal response, none
          • R40.222  Coma scale, best verbal response, incomprehensible words
          • R40.223  Coma scale, best verbal response, inappropriate words
          • R40.224  Coma scale, best verbal response, confused conversation
          • R40.225  Coma scale, best verbal response, oriented
        • R40.23 Coma scale, best motor response
          • R40.231  Coma scale, best motor response, none
          • R40.232  Coma scale, best motor response, extension
          • R40.233  Coma scale, best motor response, abnormal flexion
          • 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
        • R40.24 Glasgow coma scale, total score
          • R40.241  Glasgow coma scale score 13-15
          • R40.242  Glasgow coma scale score 9-12
          • R40.243  Glasgow coma scale score 3-8
          • R40.244  Other coma, without documented Glasgow coma scale score, or with partial score reported
        • R40.2A  Nontraumatic coma due to underlying condition
      • R40.3  Persistent vegetative state
      • R40.4  Transient alteration of awareness