CAISS – ABDOMEN EXAM QUESTIONS
WITH 100% CORRECT ANSWERS L
LATEST VERSION 2025/2026.
What does ISS define as part of the abdominal region? - ANS Skin(lower torso), Digestive,
Abdominal & Pelvic Vessels, Lumbar Spine(vertebrae & cord)
Is the hip & pelvic bones structure part of the Abdominal region? - ANS No. They are part of
the extremity.
What terms can be used for "massive" organ lacerations? - ANS Avulsion, Complex, Rupture,
Tissue Loss, Deep
Define "Avulsion" of an organ? - ANS It is when the an organ is repped / forcible tearing away
from it's vascular system.
Define "No Perforation" of an organ? - ANS A partial thickness laceration, such as a serosal
tear. IE. Outerlayer
Define "Perforation" of an organ? - ANS A full thickness laceration, but not complete
transection
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, Define "Transection" of an organ? - ANS Complete separation of two parts of an organ.
When coding an organ which takes priority; OIS or clinical description? - ANS Clinical
Description
When can a retroperitoneal hemorrhage be coded? - ANS Code when determined it is
unrelated to another injury. IE unrelated to pancreas, duodenum, kidney, aorta, vena cava,
mesenteric vessel and pelvic/vertebral fractures
When can a vessel injury be coded? - ANS (1)If they are isolated injuries or (2)they are not
included in an organ injury description
If an injury occurs at the junction between the duodenum and the jejunum how is it coded? -
ANS Code to the jejunum
Can a Contusion & a laceration be coded to a single organ? - ANS Depends. If the contusion is
related to a laceration, No. If they are unrelated then Yes.
Can fetal demise be coded as an injury? - ANS No. It is a result of an abdominal injury not the
injury itself.
How is Abdominal Compartment Syndrome coded? - ANS It is not. It is a consequence of an
injury.
How are duct injuries coded between shared organs? - ANS Code to a single organ not both.
What is the serous membrane of an organ? - ANS Peritoneum
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
WITH 100% CORRECT ANSWERS L
LATEST VERSION 2025/2026.
What does ISS define as part of the abdominal region? - ANS Skin(lower torso), Digestive,
Abdominal & Pelvic Vessels, Lumbar Spine(vertebrae & cord)
Is the hip & pelvic bones structure part of the Abdominal region? - ANS No. They are part of
the extremity.
What terms can be used for "massive" organ lacerations? - ANS Avulsion, Complex, Rupture,
Tissue Loss, Deep
Define "Avulsion" of an organ? - ANS It is when the an organ is repped / forcible tearing away
from it's vascular system.
Define "No Perforation" of an organ? - ANS A partial thickness laceration, such as a serosal
tear. IE. Outerlayer
Define "Perforation" of an organ? - ANS A full thickness laceration, but not complete
transection
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, Define "Transection" of an organ? - ANS Complete separation of two parts of an organ.
When coding an organ which takes priority; OIS or clinical description? - ANS Clinical
Description
When can a retroperitoneal hemorrhage be coded? - ANS Code when determined it is
unrelated to another injury. IE unrelated to pancreas, duodenum, kidney, aorta, vena cava,
mesenteric vessel and pelvic/vertebral fractures
When can a vessel injury be coded? - ANS (1)If they are isolated injuries or (2)they are not
included in an organ injury description
If an injury occurs at the junction between the duodenum and the jejunum how is it coded? -
ANS Code to the jejunum
Can a Contusion & a laceration be coded to a single organ? - ANS Depends. If the contusion is
related to a laceration, No. If they are unrelated then Yes.
Can fetal demise be coded as an injury? - ANS No. It is a result of an abdominal injury not the
injury itself.
How is Abdominal Compartment Syndrome coded? - ANS It is not. It is a consequence of an
injury.
How are duct injuries coded between shared organs? - ANS Code to a single organ not both.
What is the serous membrane of an organ? - ANS Peritoneum
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
