CAISS 2023/2024 with Certified Solutions

CAISS 2023/2024 with Certified Solutions AIS Defined An anatomically based consensus driven global severity scoring system that classifies each injury by body region according to its relative importance on a six point ordinal score. Severity code 1 Minor Severity code 2 Moderate Severity code 3 Serious Severity code 4 Severe Severity code 5 Critical Severity code 6 Maximum (currently untreatable) Is all AIS Data comparable? No - have to know what AIS revision was used Is death a part of the severity code? No. Death is an outcome. Does a linear relationship exist between AIS severity codes? NO (AIS 4 is more, NOT twice as severe as AIS 2) Are injuries within the same severity code strictly compatible? No. A tibia fx may be more serious than an alveolar ridge fx but both are considered moderate. What does a .9 code equate. Unknown. Inadequate info exists for assignment of AIS. Allows for classification of traumatic event. "Average" patient • Adult 25-40 years of age • Free of pre-existing conditions • Free of treatment complications • Receiving timely, appropriate care for the injury How many injury descriptors are there? 2000 in 9 chapters What is a general structure of the chapters Whole area Vessels Nerves Internal organs Skeleton The spine chapter is divided into what sections? Cervical, thoracic, and lumbar The extremity chapters include what two additional sections - Muscles, tendons, ligaments - Joints What additional section does the head chapter include? Concussive injury Does the abdominal and pelvic contents chapter include skeletal injuries? No Does the External and Other trauma chapter have a unique structure? Yes, it includes soft tissue injuries, burns, asphyxia/suffocation, caustic agents, drowning, electrical injury, hypothermia and whole body injuries What is the 7 digit unique numerical identifier? A specific tool for more accurate coding. Predot is made up of body region, type of anatomical structure, specific anatomical structure and level of injury. Post dot is severity number. Parentheses Synonyms Brackets Inclusionary or exclusionary information Box bold type Directives Semicolons Separate Injury descriptors Italics Proper named anatomical structures or injuries and OIS grades What is an ISS? The sum of the squares of the highest AIS in each of the three most severely injured ISS body regions What is an AIS AIS is the severity of a single injury Can one or two body regions be used to calculate the ISS? Yes, but no more than three can be used What are the six body regions Head and neck -Head neck cervical spine Face - Face Chest - thorax, thoracic spine Abdomen and pelvic contents - Abdomen and lumbar spine Extremities and pelvic griddle - Upper and lower extremities External - Penetrating injury, blunt soft tissue injury, skin and thermal injuries, other trauma Assigning too few ISS body regions can result in what? Underestimation of ISS Are preliminary diagnosis codeable? No. Injuries documented as suspected, possible, or rule out are not codeable. When is it appropriate to code cranial nerve laceration based off of a clinical diagnoses? If there is documented cranial nerve paralysis or total loss of function. Can also code cranial nerve contusion if there is documented cranial nerve weakness/paresis or subtotal loss of function. Assigning to many ISS body regions can result in what? Over estimation of the ISS What body region is a asphyxia assigned to? Head Drowning is assigned to what body region? Chest What body region is the lumbar spine included in? Abdominal and pelvic area Are the ISS body regions and the AIS Chapters the same