ICD-10-CM Book 2025 Edition

Chapters ICD-10-CM Book Table of Content /
chapter 18 R00-R99 Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified /
R40-R46 Symptoms and signs involving cognition, perception, emotional state and behavior /
R41 Other symptoms and signs involving cognitive functions and awareness

  Billable ICD-10-CM Code R41.82
R41.82
Altered mental status, unspecified
Change in mental status NOS
excludes1
altered level of consciousness (R40.-)
altered mental status due to known condition - code to condition
delirium NOS (R41.0)