CAISS Certification Exam Trauma Registry
Questions and Answers with Verified
Solutions | Latest Updated 2026
Branches of vessels these are not coded unless they are
named or
listed with a specific descriptor
Boxed and Bold Text Represent AIS coding rules and
conventions
Brackets Denote inclusive or exclusive information
Semicolons Separate injury descriptors that are
comparable in
severity
Bold Type Identifies anatomical structure
Supratentorial Described as blood along the tentorium
and is
coded to the Cerebrum
Temporal Bone Consists of three portions: the
squamous/shell-like
portion (in vault), and the mastoid and
petrous
portions (in base) of the skull
, Interpeduncular Fossa (Cistern) Coded as hemorrhage in the brainstem
Pterygoid Plates Is part of the sphenoid bone and is coded
to the
skull base if in isolation (not coded
additionally if
part of a LeFort fracture)
Skull Base Occipital Condyles are coded to what part
of the
skull?
Vasospasm Is a transient occurrence that may or may
not show
up on imaging and is the result of injury to
the
artery and cannot be coded
Laceration Unless contusion or laceration is specified,
code
total loss of nerve function (paralysis) as a
Contusion Unless contusion or laceration is specified,
code
partial loss of nerve function (paresis) as
Optic Nerve (II) Includes chiasm and tracts
Brain Stem Includes the hypothalamus, medulla,
midbrain, and
pons
Questions and Answers with Verified
Solutions | Latest Updated 2026
Branches of vessels these are not coded unless they are
named or
listed with a specific descriptor
Boxed and Bold Text Represent AIS coding rules and
conventions
Brackets Denote inclusive or exclusive information
Semicolons Separate injury descriptors that are
comparable in
severity
Bold Type Identifies anatomical structure
Supratentorial Described as blood along the tentorium
and is
coded to the Cerebrum
Temporal Bone Consists of three portions: the
squamous/shell-like
portion (in vault), and the mastoid and
petrous
portions (in base) of the skull
, Interpeduncular Fossa (Cistern) Coded as hemorrhage in the brainstem
Pterygoid Plates Is part of the sphenoid bone and is coded
to the
skull base if in isolation (not coded
additionally if
part of a LeFort fracture)
Skull Base Occipital Condyles are coded to what part
of the
skull?
Vasospasm Is a transient occurrence that may or may
not show
up on imaging and is the result of injury to
the
artery and cannot be coded
Laceration Unless contusion or laceration is specified,
code
total loss of nerve function (paralysis) as a
Contusion Unless contusion or laceration is specified,
code
partial loss of nerve function (paresis) as
Optic Nerve (II) Includes chiasm and tracts
Brain Stem Includes the hypothalamus, medulla,
midbrain, and
pons
