R41.82 Billable Code
Altered mental status, unspecified
Effective From: 10/01/2016
Chapter Classification
Chapter 18
Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
Section Detail
R40-R46
Symptoms and signs involving cognition, perception, emotional state and behavior (R40-R46)
Code Hierarchy
This code is a child of R41.8.
Coding Guidelines & Notes
excludes1
- altered level of consciousness (R40.-)
- altered mental status due to known condition - code to condition
- delirium NOS (R41.0)
OPPS Editing Flags
External Cause
No
Mental Health
Yes
Manifestation (Edit 89)
No
Code First Applicable This code represents a manifestation of an underlying disease. The underlying condition must be coded first as the principal diagnosis.
No
Unacceptable PDX (Edit 113)
No
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