ICD-10-CM coding guidelines Questions and
Answers 2026 Latest Update
ICD-10-CM system is used for what coding? Ans: diagnosis
ICD-10-CM is separated into what? Ans: alphabetic index and
tabular list
What represents diseases, conditions, nouns, and adjectives? Ans:
main terms
What are terms that appear in parenthesis following a main term
or subterm? Ans: nonessential modifiers
How can you distinguish between a main term and a nonessential
modifier? Ans: parenthesis
Nonessential modifiers appear in the what? Ans: alphabetic index
T/F Presence or absence of the parenthetical terms has no effect
on the selection of the codes. Ans: T
Nonessential modifiers apply to what? Ans: main term and
subterms
Take the example: Pneumonia (acute) (double) (migratory)
(purulent) (septic) (unresolved)
The word septic is a:
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a. eponym
b. nonessential modifier
c. code also
d. default code Ans: b
What is the name of a disease, organ, procedure, or body function
that is derived from the name of a person? Ans: eponym
What is a proper name also called? Ans: eponym
Take the example: Huntington's Disease
What is the word Huntington an example of? Ans: eponym
What note is a cross reference term to look elsewhere in the
alphabetic index and is also mandatory instruction? Ans: see
What note is a cross reference term to look elsewhere in the
alphabetic index and is also optional? Ans: see also
T/F It is necessary to follow the "see also" note when the original
main term provides the necessary code. Ans: F
What note appears when two codes may be required to fully
describe a condition? Ans: code also
Take the example: Dementia, with, Parkinson's disease G20
/[F02.80]/
Which of the following is true?
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