The purpose is different for an initial C&P TBI Residuals examination compared to a review examination.

Initial TBI Residuals Examination	Review TBI Residuals Examination
Ensure that the claimant has a qualified diagnosis of TBI. Evaluate the claimant for residuals. If there are residuals, evaluate and document their current impact on the claimant’s functioning.	The TBI diagnosis has been established. Evaluate and document the current impact of TBI residuals on the claimant’s functioning.

The examiner should keep in mind that a TBI is a historical event. Determination of TBI severity is important in the acute management and rehabilitation following the TBI, but initial severity does not determine long-term functional impairment.

Moreover, no symptom is unique to TBI. Symptoms commonly seen after a TBI can also be seen in other disorders. There may be an overlap of manifestations of TBI residual conditions with symptoms of a comorbid mental, neurological, or other physical disorder that can be individually evaluated in a separate evaluation.