E16.2 vs E74
E16.2 and E74 can never be reported together. ICD-10-CM declares them mutually exclusive with an Excludes1 note, meaning the two conditions cannot occur in the same patient — so exactly one of them is correct for any given encounter.
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 (d)
- Encephalopathy › hypoglycemic (acute)
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