Alphabetic Index FY2027

E28.9

Ovarian dysfunction, unspecified

FY2027Chapter 4: Endocrine, nutritional and metabolic diseases/E20–E35 Disorders of other endocrine glands

BillableComplete code, valid to report

E28.9 (also written E289) is a billable ICD-10-CM diagnosis code for ovarian dysfunction, unspecified. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 8 codes in category E28 (Ovarian dysfunction). The Alphabetic Index lists it under 1 entry. Its coding notes include 5 Excludes1 entries.

Excludes1

Not coded here. The listed conditions generally should not be reported together.

Inherited from E28 Ovarian dysfunction
  • isolated gonadotropin deficiency (E23.0)
  • postprocedural ovarian failure (E89.4-)
Also from chapter/block level (3 notes)
Inherited from E20–E35 Disorders of other endocrine glands
Inherited from Chapter 4 Endocrine, nutritional and metabolic diseases
  • transitory endocrine and metabolic disorders specific to newborn (P70-P74)

Notes

Also from chapter/block level (1 note)
Inherited from Chapter 4 Endocrine, nutritional and metabolic diseases
  • All neoplasms, whether functionally active or not, are classified in Chapter 2. Appropriate codes in this chapter (i.e. E05.8, E07.0, E16-E31, E34.-) may be used as additional codes to indicate either functional activity by neoplasms and ectopic endocrine tissue or hyperfunction and hypofunction of endocrine glands associated with neoplasms and other conditions classified elsewhere.

Alphabetic Index terms

Terms the official Alphabetic Index lists for this code. 1 entry