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11 CAISS – Head Exam Questions and Answers Updated (Verified Answers) 1.What does AIS define as part of the Head ANS Scalp, Skull, Brain, Intracranial Vessels, Cranial Nerves.
2.What makes up the Meninges ? ANS Dura Mater(epidural/subdural), Arachnoid(csf), pia matter(vascular membrane) 3.What are the regions of the brain ? ANS Brain Stem, Cerebellum, Cerebrum 4.What is a Focal Brain Injury ? ANS Space occupying lesion in which the brain will shift or herniate 5.What is a Diffuse Brain Injury ? ANS Global/Widespread damaging affecting con- sciousness 6.In the skull; what does "Compound" mean ? ANS Open Fracture 1 / 2
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11 7.Coding of brain injuries should be done when ? ANS At 24 hours or at initial confirmed diagnosis if later than 24 hours.
8.When can LOC be coded ? ANS When there is convincing evidence of head trauma and the diagnosis is made by a physician.
9.Provider diagnosis the patient with a "Closed Head Injury" how do you code this
? ANS 100099.9; NFS
10.Patient is diagnosed with a Compound Temporal Fracture and laceration of the Temporal Artery. Can you code both injuries ? ANS Yes 11.When is a cranial nerve coded as a laceration ? ANS When there is Total Loss of Nerve Function Paralysis 12.When is a Cranial Nerve coded as a Contusion ? ANS When there is subtotal/par- tial loss of function. Paresis / Palsy 13.What affects the Injury Severity Score of brain lesions ? ANS Size, Location, Multiplicity
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