| Full description | Coma scale, eyes open, spontaneous, in the field [EMT or ambulance] |
| Billable | Yes |
| Chapter | Chapter 18: Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99) |
| Section | Symptoms and signs involving cognition, perception, emotional state and behavior (R40-R46) |
| Parent code | R40.214 — Coma scale, eyes open, spontaneous |