R40.2Coma
ICD-10-CM category (non-billable header) code — part of Symptoms and signs involving cognition, perception, emotional state and behavior (R40-R46)
Coding Notes
Code First
- any associated:
- fracture of skull (S02.-)
- intracranial injury (S06.-)
Note
- One code from each subcategory, R40.21-R40.23, is required to complete the coma scale
Subcategories (6)
- R40.20 Unspecified coma
- R40.21 Coma scale, eyes open
- R40.22 Coma scale, best verbal response
- R40.23 Coma scale, best motor response
- R40.24 Glasgow coma scale, total score
- R40.2A Nontraumatic coma due to underlying condition