Excludes1 pair
E11.9 vs E11.A
E11.9 and E11.A are not coded together. ICD-10-CM declares them mutually exclusive with an Excludes1 note — the two conditions are not expected to occur together, so exactly one of them is normally correct for a given encounter. The Official Guidelines carve out one exception: if the two conditions are clearly unrelated to each other, both may be reported.
The official note, declared on E11.9
type 2 diabetes mellitus, without complications in remission (E11.A)
E11.9
Type 2 diabetes mellitus without complications
Billable
- Chapter 4
- Endocrine, nutritional and metabolic diseases
- Section
- E08-E13
Indexed under
- Diabetes, diabetic (mellitus) (sugar)
- Diabetes, diabetic › type 2
E11.A
Type 2 diabetes mellitus without complications in remission
Billable
- Chapter 4
- Endocrine, nutritional and metabolic diseases
- Section
- E08-E13
Indexed under
- Diabetes, diabetic › without complications in remission
- Diabetes, diabetic › type 2 › without complications in remission
Excludes1 is not always absolute: where two conditions covered by the note are genuinely unrelated, CMS guidance permits reporting both. Document the reasoning rather than assuming it. More on Excludes1 vs Excludes2 · FY2027