Other encephalopathy

This code signifies a broad category of brain dysfunction not elsewhere classified, characterized by altered mental status, cognitive impairment, and neurological deficits. It indicates a generalized disturbance of brain function due to various underlying causes, excluding those with more specific ICD-10-CM codes.

Apply this code when documentation clearly indicates encephalopathy, but a more specific type (e.g., toxic, metabolic, anoxic) is not identified or cannot be coded separately. This is appropriate when the physician's diagnosis is "other encephalopathy" or "encephalopathy NOS" after ruling out more specific etiologies.

• Always attempt to code to a more specific type of encephalopathy if the documentation supports it.
• Ensure the medical record clearly states "encephalopathy" and does not specify a more precise etiology that has its own code.
• This code is often used as a secondary diagnosis, with the underlying cause of the encephalopathy coded as the primary diagnosis when known.