CodeWords both speed coding and improves consistency. A CodeWord is a term or phrase that you map to a single code. This means if you search the term or phrase, the code you assigned to the CodeWord will always be the first search result.
For example, if a physician always writes NIDDM for controlled Type II, adult, non-insulin dependent diabetes, you can create a CodeWord that links that particular abbreviation directly to code 250.01, or whatever code you believe accurately reflects that abbreviation.
When you or coders in your multi-user group search NIDDM in the future, code 250.01 will appear first in the search results even though NIDDM does not appear in the any of code descriptions for 250.01.