eMedCodes logo

R40 - Somnolence, stupor and coma


The ICD 10 Code for Somnolence, stupor and coma is listed as R40.
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
Description: Somnolence, stupor and coma
  • Excludes1: 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)
Chapter Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
ICD-10-CM Children (deeper level / typically more specific) of R40:
R40.0 - Somnolence
R40.1 - Stupor
R40.2 - Coma
R40.3 - Persistent vegetative state
R40.4 - Transient alteration of awareness