Excludes1 pair
E16.2 vs E74-
E16.2 and E74 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 E74
hypoglycemia NOS (E16.2)
E16.2
Hypoglycemia, unspecified
BillableUnspecified
- Chapter 4
- Endocrine, nutritional and metabolic diseases
- Section
- E15-E16
Indexed under
- Glycopenia
- Hypoglycemia (spontaneous)
- McQuarrie's syndrome (idiopathic familial hypoglycemia)
- Decrease › glucose
- Encephalopathy › hypoglycemic
E74
Other disorders of carbohydrate metabolism
Not billable
- Chapter 4
- Endocrine, nutritional and metabolic diseases
- Section
- E70-E88
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