CAISS Question and Answer (2026) | Newest
Comprehensive Questions and Answers with
Detailed Explanations | Grade A+
• Which type of measurement is more variable? Anatomic or Physiologic? -
✓✓Physiologic
• Is clinical training necessary for collecting injury data? -✓✓NO
• AIS is based on what three (3) factors? -✓✓1) anatomically- based
2) consensus driven
3) global
• Severity is NOT contingent upon what two (2) factors? -✓✓1) Outcome
2) time
• Numerical ranking of severity: 1 -✓✓minor
• Numerical ranking of severity: 2 -✓✓moderate
• Numerical ranking of severity: 3 -✓✓serious
• Numerical ranking of severity: 4 -✓✓severe
• Numerical ranking of severity: 5 -✓✓critical
,• Numerical ranking of severity: 6 -✓✓maximum (currently untreatable)
• Is mortality a sole determinant of AIS severity? -✓✓NO
• Are all AIS data comparable from year to year? -✓✓NO (updates)
• Is "DEATH" part of the severity scale? -✓✓NO
• Is a patient who dies automatically assigned the highest AIS severity of 6? -
✓✓NO (patients w/ minor injuries can die)
• Does a linear relationship exist between AIS severity codes? -✓✓NO (AIS 4 is
more, NOT twice as severe as AIS 2)
• Are all injuries within the same AIS code strictly compatible? -✓✓NO (tibia fx &
alveolar ridge are both AIS - 2, although one may be worse than the other, both are
considered 'moderate')
• What AIS code is assigned to a patient with inadequate information regarding an
injury? -✓✓9
• AIS single digit severity codes are based on what type of patient? -✓✓Average
• What four (4) things define the "average" patient? -✓✓1) 25-40 yrs old
2) no pre-existing conditions
3) no tx complications
,4) received timely/appropriate care
• Approximately how many injury descriptors are included in AIS? -✓✓2000
• What part of the AIS code is considered the "Pre-Dot Code?" -✓✓6 digits
BEFORE the decimal point (left)
• What part of the AIS code is considered the "AIS Severity Number?" -✓✓single
digit after the decimal (right)
• (T/F) The 6 digit pre-dot codes are unique and allow for more specificity and
accurate coding? -✓✓TRUE
• The first digit in the pre-dot code corresponds to what? -✓✓Body Region
• The second digit in the pre-dot code corresponds to what? -✓✓Type of anatomic
structure (skeletal, solid organ)
• The third/fourth digits in the pre-dot code correspond to what? -✓✓Specific
anatomic structure (femur)
• The fifth/sixth digits in the pre-dot code correspond to what? -✓✓Level of injury
within the specific body region and anatomic structure (NFS, minor, major)
• Parenthesis in the AIS dictionary indicate what? -✓✓synonyms or definitions for
injury types
, • Brackets in the AIS dictionary indicate what? -✓✓inclusionary/exclusionary info,
OIS Grades
• Boxed bold type in the AIS dictionary indicates what? -✓✓directions to help
coder choose appropriate code
• Semicolons in the AIS dictionary indicate what? -✓✓separate injury descriptors
that are comparable in severity
• Italics in the AIS dictionary indicate what? -✓✓proper-named injuries/structures,
OIS grades
• Does AIS assess the severity of multiple injuries? -✓✓NO (single injury severity
only)
• The injury Severity Score (ISS) is defined as what? -✓✓Sum of the squares of
highest AIS in each of three most severely injured ISS body regions.
• What are the six body regions used in the ISS? -✓✓1) head & neck
2) face
3) chest
4) abdomen & pelvic organs
5) extremities & pelvis
6) external
• Asphyxia is assigned to which ISS region? -✓✓Head and Neck
Comprehensive Questions and Answers with
Detailed Explanations | Grade A+
• Which type of measurement is more variable? Anatomic or Physiologic? -
✓✓Physiologic
• Is clinical training necessary for collecting injury data? -✓✓NO
• AIS is based on what three (3) factors? -✓✓1) anatomically- based
2) consensus driven
3) global
• Severity is NOT contingent upon what two (2) factors? -✓✓1) Outcome
2) time
• Numerical ranking of severity: 1 -✓✓minor
• Numerical ranking of severity: 2 -✓✓moderate
• Numerical ranking of severity: 3 -✓✓serious
• Numerical ranking of severity: 4 -✓✓severe
• Numerical ranking of severity: 5 -✓✓critical
,• Numerical ranking of severity: 6 -✓✓maximum (currently untreatable)
• Is mortality a sole determinant of AIS severity? -✓✓NO
• Are all AIS data comparable from year to year? -✓✓NO (updates)
• Is "DEATH" part of the severity scale? -✓✓NO
• Is a patient who dies automatically assigned the highest AIS severity of 6? -
✓✓NO (patients w/ minor injuries can die)
• Does a linear relationship exist between AIS severity codes? -✓✓NO (AIS 4 is
more, NOT twice as severe as AIS 2)
• Are all injuries within the same AIS code strictly compatible? -✓✓NO (tibia fx &
alveolar ridge are both AIS - 2, although one may be worse than the other, both are
considered 'moderate')
• What AIS code is assigned to a patient with inadequate information regarding an
injury? -✓✓9
• AIS single digit severity codes are based on what type of patient? -✓✓Average
• What four (4) things define the "average" patient? -✓✓1) 25-40 yrs old
2) no pre-existing conditions
3) no tx complications
,4) received timely/appropriate care
• Approximately how many injury descriptors are included in AIS? -✓✓2000
• What part of the AIS code is considered the "Pre-Dot Code?" -✓✓6 digits
BEFORE the decimal point (left)
• What part of the AIS code is considered the "AIS Severity Number?" -✓✓single
digit after the decimal (right)
• (T/F) The 6 digit pre-dot codes are unique and allow for more specificity and
accurate coding? -✓✓TRUE
• The first digit in the pre-dot code corresponds to what? -✓✓Body Region
• The second digit in the pre-dot code corresponds to what? -✓✓Type of anatomic
structure (skeletal, solid organ)
• The third/fourth digits in the pre-dot code correspond to what? -✓✓Specific
anatomic structure (femur)
• The fifth/sixth digits in the pre-dot code correspond to what? -✓✓Level of injury
within the specific body region and anatomic structure (NFS, minor, major)
• Parenthesis in the AIS dictionary indicate what? -✓✓synonyms or definitions for
injury types
, • Brackets in the AIS dictionary indicate what? -✓✓inclusionary/exclusionary info,
OIS Grades
• Boxed bold type in the AIS dictionary indicates what? -✓✓directions to help
coder choose appropriate code
• Semicolons in the AIS dictionary indicate what? -✓✓separate injury descriptors
that are comparable in severity
• Italics in the AIS dictionary indicate what? -✓✓proper-named injuries/structures,
OIS grades
• Does AIS assess the severity of multiple injuries? -✓✓NO (single injury severity
only)
• The injury Severity Score (ISS) is defined as what? -✓✓Sum of the squares of
highest AIS in each of three most severely injured ISS body regions.
• What are the six body regions used in the ISS? -✓✓1) head & neck
2) face
3) chest
4) abdomen & pelvic organs
5) extremities & pelvis
6) external
• Asphyxia is assigned to which ISS region? -✓✓Head and Neck
