1. Acute A condition with a rapid and short course
2. Anatomical Body site
3. And Can mean either an or or when it is in the code description
4. BMI Body mass index
5. Brackets [ ] Symbol to enclose synonyms, alternate wording, or ex-
planatory phrases in the tabular list
6. Chronic A condition that develops slowly and lasts a long time
7. Code First Note in the tabular list written in italics requiring the under-
lying disease to be coded first
8. Colon ":" Used in the tabular list after an incomplete term that needs
one or more of the modifiers that follow to make it assign-
able to a given category
9. Combination Single code used to classify two diagnoses
Code
10. COPD Chronic Obstructive Pulmonary Disease
11. Default Code The code listed next to the main term and represents the
condition most commonly associated with the main term
12. Etiology Cause of the disease
13. Eponym Disease or syndrome named after a person
14. Essential Modi- Subterms that are listed below the main term in alphabet-
fiers ical order, and are indented
15. Excludes 1 Note in the tabular list to indicate the terms listed are to be
reported with a code from another category and are not to
be reported with the current code
16. Excludes 2
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