Brain death

This code signifies the irreversible cessation of all functions of the entire brain, including the brainstem. It represents a state where there is no longer any evidence of brain activity, despite the continued functioning of other organs, often maintained by artificial means.

Apply this code when a patient has been clinically determined and documented to be brain dead, typically following established medical protocols for brain death determination. This diagnosis is crucial for end-of-life care planning, organ donation considerations, and accurate mortality reporting. Documentation must clearly state the diagnosis of brain death based on neurological examination and confirmatory tests.

• Do not confuse this with coma (R40.2-) or persistent vegetative state (R40.3), which represent different levels of impaired consciousness.
• This code is typically a principal diagnosis when the patient's admission or encounter is for the management of brain death or related end-of-life care.
• Ensure the medical record contains explicit documentation of brain death determination by a qualified physician, including the date and time.