Excludes2 Notes in Chapter 22: Codes for Special Purposes ICD-10-CM
An Excludes2 note means "NOT INCLUDED HERE": the excluded condition is not part of this code, but a patient may have both, so both codes may be reported. In Chapter 22 (U00-U49), notes printed in the chapter name other codes 2 times, and Excludes2 Notes anywhere in the Tabular List name the chapter’s codes 1 times, covering 1 distinct codes, categories and ranges. Switch views to read the list either way.
Excludes2 Notes by the code that carries the note
- U09.9 Post COVID-19 condition, unspecified
- B94.9 Sequelae of unspecified infectious and parasitic disease: post COVID-19 condition (U09.9)
The first view lists notes printed in this chapter (a note on a category or block applies to every code beneath it). The second lists codes of this chapter named by Excludes2 Notes anywhere in the Tabular List, including notes in other chapters.
Questions About Excludes2 Notes
What does an Excludes2 note mean?
An Excludes2 note means “Not included here”: the excluded condition is not part of the condition represented by the code, but a patient may have both conditions at the same time (Section I.A.12.b). The FY 2027 Tabular List has 2,529 of them; 2,493 name other codes, with 2,799 references to 1,779 distinct codes, categories and ranges.
Can both codes be reported when there is an Excludes2 note?
Yes. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate: that is, when the patient has both conditions and both are documented.
Related References
Source: FY 2027 ICD-10-CM Tabular List (CMS and NCHS) and the ICD-10-CM Official Guidelines for Coding and Reporting FY 2027, Section I.A. ICD List is not affiliated with CMS or NCHS.
