R41.2 Retrograde amnesia

Billable ICD-10-CM code, FY2026.

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)

• 780.93 Memory loss (approximate)

Code annotations containing back-references to R41.2

Back-references to R41.2

• Type 1 Excludes: F04 Amnestic disorder due to known physiological condition ("retrograde amnesia (R41.2)")
• Type 1 Excludes: F44.0 Dissociative amnesia ("retrograde amnesia (R41.2)")

Diagnosis Index entries for R41.2

• Amnesia › retrograde

Nearby codes

• R41 Other symptoms and signs involving cognitive functions and awareness
• R41.0 Disorientation, unspecified
• R41.1 Anterograde amnesia
• R41.2 Retrograde amnesia (this code)
• R41.3 Other amnesia
• R41.4 Neurologic neglect syndrome
• R41.8 Other symptoms and signs involving cognitive functions and awareness
• R41.81 Age-related cognitive decline
• R41.82 Altered mental status, unspecified