R41.0 Disorientation, unspecified

Billable ICD-10-CM code, FY2026.

Applicable to

• Confusion NOS
• Delirium NOS

Excludes1 (never code together)

• delirium due to known physiological condition (F05)

Applies from R41 Other symptoms and signs involving cognitive functions and awareness

Excludes1 (never code together)

• dissociative [conversion] disorders (F44.-)
• mild cognitive impairment of uncertain or unknown etiology (G31.84)

MS-DRG index

Defines the logic of DRG(s) 947-948 in MDC 23.

Approximate ICD-9-CM (GEMs)

• 780.97 Altered mental status (approximate)

Code annotations containing back-references to R41.0

Back-references to R41.0

• Type 1 Excludes: F05 Delirium due to known physiological condition ("delirium NOS (R41.0)")
• Type 1 Excludes: R41.82 Altered mental status, unspecified ("delirium NOS (R41.0)")

Diagnosis Index entries for R41.0

• Confusion, confused
• Delirium, delirious (acute or subacute) (not alcohol- or drug-induced)
• Delirium, delirious (acute or subacute) (not alcohol- or drug-induced) › due to (secondary to) › unknown etiology
• Disorientation
• Symptoms NEC › involving › awareness › disorientation
• Symptoms NEC › involving › cognitive functions › disorientation

Nearby codes

• R41 Other symptoms and signs involving cognitive functions and awareness
• R41.0 Disorientation, unspecified (this code)
• R41.1 Anterograde amnesia
• R41.2 Retrograde amnesia
• R41.3 Other amnesia
• R41.4 Neurologic neglect syndrome
• R41.8 Other symptoms and signs involving cognitive functions and awareness