Excludes1 pair
E28.8 vs E89-
E28.8 and E89 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 E28.8
postprocedural ovarian failure (E89.4-)
E28.8
Other ovarian dysfunction
Billable
- Chapter 4
- Endocrine, nutritional and metabolic diseases
- Section
- E20-E35
Use when the record says
- Ovarian hyperfunction NOS
Indexed under
- Hyperovarism
- Hyperthecosis ovary
- Amenorrhea › hyperhormonal
- Hyperfunction › ovarian
- Hypergonadism › ovarian
E89
Postprocedural endocrine and metabolic complications and disorders, not elsewhere classified
Not billable
- Chapter 4
- Endocrine, nutritional and metabolic diseases
- Section
- E89
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