The diagnostic criteria for Major Neurocognitive Disorder Due to Traumatic Brain Injury (TBI) are as follows:
- Evidence of a significant TBI: There must be evidence of a significant TBI, as documented by medical history, physical examination, and neuroimaging.
- Development of a significant cognitive decline: There must be evidence of a significant decline in cognitive function, as demonstrated by clinical evaluation and neuropsychological testing.
- The cognitive deficits must be severe enough to interfere with daily activities: The cognitive deficits must be severe enough to interfere with activities of daily living, such as work, social activities, and self-care.
- The cognitive deficits are not better explained by another mental disorder: The cognitive deficits cannot be better explained by another mental disorder, such as major depressive disorder or schizophrenia.
- The cognitive deficits are not due to normal aging: The cognitive deficits cannot be attributed to normal aging.
- The cognitive deficits persist beyond the acute post-injury period: The cognitive deficits persist beyond the acute post-injury period, which is defined as the first few weeks after the injury.
Overall, the diagnosis of Major Neurocognitive Disorder Due to TBI requires evidence of a significant TBI, a significant decline in cognitive function, and cognitive deficits severe enough to interfere with daily activities. These cognitive deficits cannot be better explained by another mental disorder or attributed to normal aging, and they persist beyond the acute post-injury period.