Anterograde amnesia

This code represents a specific type of memory impairment characterized by the inability to form new memories after the onset of the amnesia. Individuals with anterograde amnesia can recall events that occurred before the amnesic event but struggle to retain new information or experiences. It often results from damage to brain structures involved in memory formation, such as the hippocampus.

Use this code when documentation clearly indicates a patient's primary deficit is the inability to create new memories. This condition is frequently observed following traumatic brain injury, stroke, encephalitis, or chronic alcohol abuse (e.g., Korsakoff's syndrome). Supporting documentation should detail the onset of memory loss and the specific inability to learn new information.

• Differentiate from retrograde amnesia (inability to recall past memories) or global amnesia.
• Always look for an underlying cause if documented, and code it as a primary diagnosis if appropriate, with this code as a secondary diagnosis.
• Ensure documentation specifies "anterograde" to avoid confusion with other unspecified amnesia types.