CAISS study_Coding
Fundamentals_Face Questions
and Complete Solutions
Graded A+
Soft palate perforations are coded as _______ and hard palate perforations are coded as _______ -
Answer: Soft palate perforations are coded as lacerations and hard palate as fractures. If palate is not
specified, code it as a fracture
T/F: LeFort must be specified in the medical documentation to use the LeFort Codes - Answer: True. If
not mentioned, code individual fractures
External carotid artery branches include? - Answer: Facial, temporal, and internal maxillary
When do you code the optic nerve to the face body region and when do you coat it to the head body
region? - Answer: The optic nerve is coded to the face when it involves the intraorbital portion only. For
intracranial portion or if location is unknown code under the cranial nerves and head
How do you code an ear amputation? - Answer: Skin avulsion according to its level of severity
What is a minor hyphema versus a major hyphema? - Answer: A minor is less than or equal to 50% of
the anterior chamber. A major is greater than 50% of anterior chamber"
Anterior chamber of eye-what is it? - Answer: The anterior chamber (AC) is the aqueous humor-filled
space inside the eye between the iris and the cornea's innermost surface, the endothelium. The AC is
between the cornea and the iris.
What is the posterior chamber of the eye? - Answer: The posterior chamber is between the iris and lens.
What are injuries to the cornea? - Answer: Injury, NFS; abrasions; burns (thermal and chemical);
contusions (has hyphema subcategories); lacerations (has subcategories)"
, Is injury to the eye with retained intraocular foreign body a codeable injury? - Answer: Yes, and it has
different codes for whether it involves the anterior chamber or the posterior chamber.
Where is the globe injury of the eye coded? - Answer: To the sclera
What joint is coded within the face section? - Answer: Temporomandibular joint. (TMJ)
If a patient has an alveolar ridge fracture and injury to the teeth, do you code them separately? -
Answer: Do not code the teeth separately when these injuries occur simultaneously.
How are bilateral mandibular fractures and multiple fractures to the same sided mandible coded? -
Answer: They are coded as a single injury. Multiple mandible fractures receive only one AIS code. The
fracture should be assigned to the largest mass area of the mandible that is involved.
When there are bilateral mandibular fractures, but they are not identical, how do you code it? For
example if one side is comminuted or if the R side has a ramus fx and the L side has a condyle fx -
Answer: Code as a single injury--Choose the code of the most severe and/or the most mass of the area.
In the book, the mandibular areas are listed in smallest to largest area--condyle, coronoid, angle,
symphysis/parasymphysis, body, ramus.
Patient has a fractured body of the right mandible and a fractured ramus of the left mandible. How do
you code it? - Answer: Code as a fracture of the ramus. Bilateral mandible fractures are treated as a
single injury. Pick up the most severe or the largest piece of mandible that is fractured
True or false: a facial fracture must be significantly displaced before it is picked up as a displaced
fracture in AIS - Answer: TRUE (>4mm), code minimally displaced as non-displaced.
LeFort fractures are coded under what bone? - Answer: The maxilla
How are bilateral maxillary fractures coded? - Answer: As a single injury
Fundamentals_Face Questions
and Complete Solutions
Graded A+
Soft palate perforations are coded as _______ and hard palate perforations are coded as _______ -
Answer: Soft palate perforations are coded as lacerations and hard palate as fractures. If palate is not
specified, code it as a fracture
T/F: LeFort must be specified in the medical documentation to use the LeFort Codes - Answer: True. If
not mentioned, code individual fractures
External carotid artery branches include? - Answer: Facial, temporal, and internal maxillary
When do you code the optic nerve to the face body region and when do you coat it to the head body
region? - Answer: The optic nerve is coded to the face when it involves the intraorbital portion only. For
intracranial portion or if location is unknown code under the cranial nerves and head
How do you code an ear amputation? - Answer: Skin avulsion according to its level of severity
What is a minor hyphema versus a major hyphema? - Answer: A minor is less than or equal to 50% of
the anterior chamber. A major is greater than 50% of anterior chamber"
Anterior chamber of eye-what is it? - Answer: The anterior chamber (AC) is the aqueous humor-filled
space inside the eye between the iris and the cornea's innermost surface, the endothelium. The AC is
between the cornea and the iris.
What is the posterior chamber of the eye? - Answer: The posterior chamber is between the iris and lens.
What are injuries to the cornea? - Answer: Injury, NFS; abrasions; burns (thermal and chemical);
contusions (has hyphema subcategories); lacerations (has subcategories)"
, Is injury to the eye with retained intraocular foreign body a codeable injury? - Answer: Yes, and it has
different codes for whether it involves the anterior chamber or the posterior chamber.
Where is the globe injury of the eye coded? - Answer: To the sclera
What joint is coded within the face section? - Answer: Temporomandibular joint. (TMJ)
If a patient has an alveolar ridge fracture and injury to the teeth, do you code them separately? -
Answer: Do not code the teeth separately when these injuries occur simultaneously.
How are bilateral mandibular fractures and multiple fractures to the same sided mandible coded? -
Answer: They are coded as a single injury. Multiple mandible fractures receive only one AIS code. The
fracture should be assigned to the largest mass area of the mandible that is involved.
When there are bilateral mandibular fractures, but they are not identical, how do you code it? For
example if one side is comminuted or if the R side has a ramus fx and the L side has a condyle fx -
Answer: Code as a single injury--Choose the code of the most severe and/or the most mass of the area.
In the book, the mandibular areas are listed in smallest to largest area--condyle, coronoid, angle,
symphysis/parasymphysis, body, ramus.
Patient has a fractured body of the right mandible and a fractured ramus of the left mandible. How do
you code it? - Answer: Code as a fracture of the ramus. Bilateral mandible fractures are treated as a
single injury. Pick up the most severe or the largest piece of mandible that is fractured
True or false: a facial fracture must be significantly displaced before it is picked up as a displaced
fracture in AIS - Answer: TRUE (>4mm), code minimally displaced as non-displaced.
LeFort fractures are coded under what bone? - Answer: The maxilla
How are bilateral maxillary fractures coded? - Answer: As a single injury
