It means the Occupational Therapist is ignorant or confused. TBI, mTBI, concussion, etc all blend together.

She may be trying to tell you that she knows more than the doctor at the ER. Or, her training does not recognize concussion as causing prolonged symptoms.

Many think that a concussion will heal completely. If symptoms persist, it must have been a TBI.

But then, others will say a TBI must include a Loss of Consciousness (LOC) and an mTBI will not have an LOC but may have Post Traumatic Amnesia.

As an OT, she is not necessarily licensed to diagnose the difference between a TBI, mTBI or concussion. She can diagnose specific disabilities, symptoms, and dysfunctions.

But then, she will likely tell you otherwise.