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IDC-10 modifiers
instructional notations
Term | Definition |
---|---|
includes | the word "includes" appears immediately under certain categories to further define, or give examples of, the content of the category |
excludes1 | an excludes1 note indicates that the code excluded should never be used at the same time as the code above the excludes1 note. |
excludes2 | indicates that the condition excluded is not part of the condition it is excluded from but a patient may have both conditions at the same time. acceptable to use both the code and the excluded codes together |
use additional | the words indicate an instructional note that another code may be needed |
code first | the words indicate an instructional note that directs the coder to sequence the underlying condition before the manifestation |
code also | instructs that two codes may be required to fully describe a condition |
unspecified | indicates that although the code is valid as a principal diagnosis, it is not as specific as other codes without the highlight |