ICD-10 Code: R40.4 – Transient alteration of awareness

ICD-10 code R40.4 corresponds to Transient alteration of awareness. This code is classified under the chapter R40 Somnolence, stupor and coma, which is part of the R40-R46: Symptoms and signs involving cognition, perception, emotional state and behavior category.

The parent chapter is Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified.