Symptoms and signs involving cognition, perception, emotional state and behavior

R40-R46

This section covers 97 ICD-10-CM codes (R40-R46) for symptoms and signs involving cognition, perception, emotional state and behavior, including somnolence, stupor and coma, other symptoms and signs involving cognitive functions and awareness, and dizziness and giddiness. 81 of these are billable codes usable on a claim; the rest are non-billable header categories that require a more specific child code.