Following a fall at work in which his head hit machinery, a patient was admitted unconscious and observed for neurological problems and other injuries. The patient returned to his pre-existing conscious level within two hours of admission complaining of a headache, especially on moving his head. Total length of loss of consciousness was two hours and 20 minutes. No other injuries were identified by x-ray or CT brain scan. The patient was discharged home the next day with a final diagnosis of concussion with prolonged unconsciousness. The principal diagnosis code is __________.
a. R29.6
b. R51
c. S06.0x3A
d. W31.9xxA
Question 2
A patient admitted from the emergency department with transient ischemic attack (TIA) and a severe headache. Carotid arteriogram revealed the TIA was due to insufficiency of right carotid artery associated with severe hypertension. A bilateral carotid endarterectomy was performed, and the patient was discharged on the fifth postoperative day. The principal diagnosis code is __________.
a. G45.1
b. I10
c. I77.1
d. R51
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Passenger 10 - Voices in Her Head