CAISS 2 FINAL EXAM LATEST 2025 -2026
COMPLETE 300 ACTUAL EXAM QUESTIONS
WITH CORRECT VERIFIED ANSWERS/
GRADED A+
What system is used if the coder requires further degrees of injury
specificity? - Correct Answer - Localizers
How many digits could the full post-dot code be for coder's using the
localizer system? - Correct Answer - Five
What are the 2 components of the localizer system? - Correct Answer -
localizer 1 (L1), localizer 2 (L2)
_______________ includes any injury to an intracranial vessel resulting in
its occlusion (e.g., intimal tear, dissection) - Correct Answer - Thrombosis
What is the coding guideline when an internal carotid artery injury includes
carotid-cavernous fistula? - Correct Answer - Code the carotid-cavernous
fistula only, do not code the internal carotid artery injury separately
What body region is the infraorbital segment of the optic nerve (cranial
nerve II) coded to? - Correct Answer - Face
pg. 1
,What body region is the optic nerve (cranial nerve II) coded to, if the
segment is unknown? - Correct Answer - Head
What 3 nerves are included in the vestibulocochlear nerve (cranial nerve
VIII)? - Correct Answer - Auditory, Acoustic, Vestibular
How do you code if a patient sustains more than one documented finding
involving coma? - Correct Answer - Assign coma to finding that results in
highest AIS code
How do you code more than one documented finding, involving coma,
when there is no difference in AIS code severity? - Correct Answer - Assign
coma to only one of the findings and code the others as NFS
T/F Do not code other hemorrhages when a patient as a substantiated
diagnosis of DAI - - Correct Answer - True
What part of the brain are infratentorial or posterior fossa injuries coded to?
- Correct Answer - Cerebellum
What four structures are included in the brain stem? - Correct Answer -
Hypothalamus, medulla, midbrain, pons
What descriptor is used for "extra axial" brain injuries - Correct Answer -
Hematoma (hemorrhage) NFS
Generic description of swollen brain - Correct Answer - Brain swelling
pg. 2
,Specific type of brain swelling due to increased brain water content -
Correct Answer - Brain edema
Brain _________ is best distinguished by the presence of hypodensity
(more black than normal brain) on CT, or hypo intensity on T1 or
hyperintensity on T2 or flair MRI imaging. - Correct Answer - Edema
Brain ________ is seen as isodose or slightly hyperdense on CT or
isodose on MRI - Correct Answer - Swelling
What part of the brain includes, basal ganglia, thalamus, putamen and
globus palladium? - Correct Answer - Cerebrum
How do you code brain injury if both white matter/basil ganglia AND corpus
callosum are involved? - Correct Answer - Only code most severe, not both
What part of the brain is DAI coded to? - Correct Answer - Cerebrum
T/F Only code brain swelling/edema when directly related to head trauma.
(not anoxia or perilesional) - Correct Answer - True
What is the body region and structure is the frontal sinus coded to? -
Correct Answer - Head, skull vault
How is a coma defined? - Correct Answer - Absence of eye opening to
painful stimuli, no word utterances, no following of commands (GCS 1-2-
5=8 or less)
pg. 3
, T/F If chemical paralysis or sedation preclude GCS evaluation, then
diagnosis of coma cannot be made. - Correct Answer - True
What is ossicular chain? What body region does its code to? - Correct
Answer - ear bone - face
Globe injuries are coded to _____________ in the ____________ body
region. - Correct Answer - Sclera- face
Is bilateral maxilla injuries code together? or separate? - Correct Answer -
Together, code as one injury
What structure is orbital roof coded to? - Correct Answer - Skull base
Tripod and malar fractures are included with __________ fractures. -
Correct Answer - Zygoma
What body regions include the vague nerve? - Correct Answer - (cranial
nerve X) - Head or Neck, Chest, Abdomen
What structure includes the thyroid and cricoid cartilage? - Correct Answer
- Larynx
If esophagus or trachea injury site is unknown, do you code to the neck? or
the chest? - Correct Answer - Neck
The innominate artery is also known as the _____________ artery and is
coded to the ___________ body region. - Correct Answer -
Brachiocephalic, chest
pg. 4
COMPLETE 300 ACTUAL EXAM QUESTIONS
WITH CORRECT VERIFIED ANSWERS/
GRADED A+
What system is used if the coder requires further degrees of injury
specificity? - Correct Answer - Localizers
How many digits could the full post-dot code be for coder's using the
localizer system? - Correct Answer - Five
What are the 2 components of the localizer system? - Correct Answer -
localizer 1 (L1), localizer 2 (L2)
_______________ includes any injury to an intracranial vessel resulting in
its occlusion (e.g., intimal tear, dissection) - Correct Answer - Thrombosis
What is the coding guideline when an internal carotid artery injury includes
carotid-cavernous fistula? - Correct Answer - Code the carotid-cavernous
fistula only, do not code the internal carotid artery injury separately
What body region is the infraorbital segment of the optic nerve (cranial
nerve II) coded to? - Correct Answer - Face
pg. 1
,What body region is the optic nerve (cranial nerve II) coded to, if the
segment is unknown? - Correct Answer - Head
What 3 nerves are included in the vestibulocochlear nerve (cranial nerve
VIII)? - Correct Answer - Auditory, Acoustic, Vestibular
How do you code if a patient sustains more than one documented finding
involving coma? - Correct Answer - Assign coma to finding that results in
highest AIS code
How do you code more than one documented finding, involving coma,
when there is no difference in AIS code severity? - Correct Answer - Assign
coma to only one of the findings and code the others as NFS
T/F Do not code other hemorrhages when a patient as a substantiated
diagnosis of DAI - - Correct Answer - True
What part of the brain are infratentorial or posterior fossa injuries coded to?
- Correct Answer - Cerebellum
What four structures are included in the brain stem? - Correct Answer -
Hypothalamus, medulla, midbrain, pons
What descriptor is used for "extra axial" brain injuries - Correct Answer -
Hematoma (hemorrhage) NFS
Generic description of swollen brain - Correct Answer - Brain swelling
pg. 2
,Specific type of brain swelling due to increased brain water content -
Correct Answer - Brain edema
Brain _________ is best distinguished by the presence of hypodensity
(more black than normal brain) on CT, or hypo intensity on T1 or
hyperintensity on T2 or flair MRI imaging. - Correct Answer - Edema
Brain ________ is seen as isodose or slightly hyperdense on CT or
isodose on MRI - Correct Answer - Swelling
What part of the brain includes, basal ganglia, thalamus, putamen and
globus palladium? - Correct Answer - Cerebrum
How do you code brain injury if both white matter/basil ganglia AND corpus
callosum are involved? - Correct Answer - Only code most severe, not both
What part of the brain is DAI coded to? - Correct Answer - Cerebrum
T/F Only code brain swelling/edema when directly related to head trauma.
(not anoxia or perilesional) - Correct Answer - True
What is the body region and structure is the frontal sinus coded to? -
Correct Answer - Head, skull vault
How is a coma defined? - Correct Answer - Absence of eye opening to
painful stimuli, no word utterances, no following of commands (GCS 1-2-
5=8 or less)
pg. 3
, T/F If chemical paralysis or sedation preclude GCS evaluation, then
diagnosis of coma cannot be made. - Correct Answer - True
What is ossicular chain? What body region does its code to? - Correct
Answer - ear bone - face
Globe injuries are coded to _____________ in the ____________ body
region. - Correct Answer - Sclera- face
Is bilateral maxilla injuries code together? or separate? - Correct Answer -
Together, code as one injury
What structure is orbital roof coded to? - Correct Answer - Skull base
Tripod and malar fractures are included with __________ fractures. -
Correct Answer - Zygoma
What body regions include the vague nerve? - Correct Answer - (cranial
nerve X) - Head or Neck, Chest, Abdomen
What structure includes the thyroid and cricoid cartilage? - Correct Answer
- Larynx
If esophagus or trachea injury site is unknown, do you code to the neck? or
the chest? - Correct Answer - Neck
The innominate artery is also known as the _____________ artery and is
coded to the ___________ body region. - Correct Answer -
Brachiocephalic, chest
pg. 4
