Free Medical Coding > ICD10 CM > 2024 ICD-10-CM Codes > 2024 ICD-10-CM Codes R00-R99 – Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99) > 2024 ICD-10-CM Codes R40-R46 – Symptoms and signs involving cognition, perception, emotional state and behavior (R40-R46) > 2024 ICD-10-CM Codes R40 – Somnolence, stupor and coma (R40) > 2024 ICD-10-CM Codes R40.2 – Coma (R40.2)