E28.8 vs E89
E28.8 and E89 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 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