CAISS CERTIFICATION STUDY GUIDE EXAM 2026 -2027
NEWEST VERSION WITH COMPLETE 400+ QUESTIONS
AND CORRECT DETAILED ANSWERS \GRADED A+
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?
directives to assist coder in appropriate use of specific description
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 3 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 & pelvic girdle
6) external
Asphyxia is assigned to which ISS body region?
HEAD & neck
Thoracic spine injuries are assigned to which ISS body region?
Chest
Drowning is assigned to which ISS body region?
Chest
Lumbar spine lesions would be assigned to which ISS region?
Abdomen & pelvic contents
, Are external injuries coded independent of their body region?
YES
Hypothermia, electrical injuries, and whole body injuries are coded to which ISS
region?
External
The ISS score ranged from _____ to ____ ?
1 to 75
What are the two ways an ISS of 75 can be achieved?
1) AIS of 5 in each of three different body regions
2) AIS of 6 in a single body region
Do patients with an AIS 9 achieve an accurate ISS score?
NO
Can less than three regions be used to calculate an ISS?
YES
NEWEST VERSION WITH COMPLETE 400+ QUESTIONS
AND CORRECT DETAILED ANSWERS \GRADED A+
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?
directives to assist coder in appropriate use of specific description
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 3 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 & pelvic girdle
6) external
Asphyxia is assigned to which ISS body region?
HEAD & neck
Thoracic spine injuries are assigned to which ISS body region?
Chest
Drowning is assigned to which ISS body region?
Chest
Lumbar spine lesions would be assigned to which ISS region?
Abdomen & pelvic contents
, Are external injuries coded independent of their body region?
YES
Hypothermia, electrical injuries, and whole body injuries are coded to which ISS
region?
External
The ISS score ranged from _____ to ____ ?
1 to 75
What are the two ways an ISS of 75 can be achieved?
1) AIS of 5 in each of three different body regions
2) AIS of 6 in a single body region
Do patients with an AIS 9 achieve an accurate ISS score?
NO
Can less than three regions be used to calculate an ISS?
YES
