CAISS – Head –
questions and detailed
answers grade a+
A head injury described as "Extra Axial" should be
codes as what type of bleed? - answer
✅✅Hematoma NFS
Absent brain stem Cisterns is a sign of what? -
answer ✅✅Severe Brain Swelling
,At O2 level is hypoxemia considered? - answer
✅✅92% or less
At what age are brain severity injuries adjusted? -
answer ✅✅10 & younger
Can you code DAI based on imaging DX of DAI? -
answer ✅✅To be able to code DAI it must also
meet the definition in the AIS dictionary
Coding of brain injuries should be done when? -
answer ✅✅At 24 hours or at initial confirmed
diagnosis if later than 24 hours.
Compressed ventricles are a sign of what? - answer
✅✅Mild Brain Swelling
, Compression due to transetentorial herniation
causing a blown pupil is injury to what nerve? -
answer ✅✅Oculomotor Nerve / CN III
Compression on the tentorium causing double
vision is an injury to which nerve? - answer
✅✅Trochlear Nerve / CN IV
Define Brain Edema - answer ✅✅Specific type of
brain swelling. It indicates increased brain water
content. Should only be coded if the provider
describes it as such or CT mentions hypodensity.
Define Brain Swelling. - answer ✅✅Generic
description of a swollen brain.
Define Vasospasm - answer ✅✅it is an injury to
the artery. It is not an injury itself; therefore not
codeable
questions and detailed
answers grade a+
A head injury described as "Extra Axial" should be
codes as what type of bleed? - answer
✅✅Hematoma NFS
Absent brain stem Cisterns is a sign of what? -
answer ✅✅Severe Brain Swelling
,At O2 level is hypoxemia considered? - answer
✅✅92% or less
At what age are brain severity injuries adjusted? -
answer ✅✅10 & younger
Can you code DAI based on imaging DX of DAI? -
answer ✅✅To be able to code DAI it must also
meet the definition in the AIS dictionary
Coding of brain injuries should be done when? -
answer ✅✅At 24 hours or at initial confirmed
diagnosis if later than 24 hours.
Compressed ventricles are a sign of what? - answer
✅✅Mild Brain Swelling
, Compression due to transetentorial herniation
causing a blown pupil is injury to what nerve? -
answer ✅✅Oculomotor Nerve / CN III
Compression on the tentorium causing double
vision is an injury to which nerve? - answer
✅✅Trochlear Nerve / CN IV
Define Brain Edema - answer ✅✅Specific type of
brain swelling. It indicates increased brain water
content. Should only be coded if the provider
describes it as such or CT mentions hypodensity.
Define Brain Swelling. - answer ✅✅Generic
description of a swollen brain.
Define Vasospasm - answer ✅✅it is an injury to
the artery. It is not an injury itself; therefore not
codeable
