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R41.82 - Altered mental status, unspecified


The ICD 10 Code for Altered mental status, unspecified is listed as R41.82.
Additional information concerning this code and description can be found below including ICD 9 crosswalks / GEMS, chapter information, and DRGs where available.

ICD 10 CM Field Value
Diagnosis Code: R41.82
Description: 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)
Diagnostic Related Groups
(MS-DRG v30.0)
947 - Signs & Symptoms W Mcc
948 - Signs & Symptoms W/o Mcc
Chapter Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
Block Symptoms and signs involving cognition, perception, emotional state and behavior (R40-R46)
Parent R41.8 - Other symptoms and signs involving cognitive functions and awareness
ICD-9-CM Diagnosis Codes General Equivalence Mappings (GEMS):
ICD 9 Dx Code: 780.97 - Altered mental status (approximate)
ICD-10-CM Siblings (same level / similar specificity) of R41.82:
R41.81 - Age-related cognitive decline
R41.83 - Borderline intellectual functioning
R41.84 - Other specified cognitive deficit
R41.89 - Other symptoms and signs involving cognitive functions and awareness