All ICD10 Codes
E28Not billable, use a more specific code below

Ovarian dysfunction

In Disorders of other endocrine glands (E20-E35), chapter 4: Endocrine, Nutritional and Metabolic Diseases

8 billable codes under E28: none are a CC or MCC; none map to an HCC.

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Instructional notes

Excludes1: not coded here, use a different code

  • isolated gonadotropin deficiency (E23.0)
  • postprocedural ovarian failure (E89.4-)

Also applies, from Disorders of other endocrine glands (E20-E35)

These notes sit on E20-E35 and apply to every code under it, including E28.

Excludes1: not coded here, use a different code

Official coding guidelines

From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.

Covers diabetes mellitus coding, including type, insulin and drug use, pump malfunction and secondary diabetes, plus obesity and obesity class codes.

Read Section I.C.4 (page 39)

All codes under E28

E28 can't be used on a claim. Pick a billable code below; grey headings group them.

E28 MS-DRGs

As the principal diagnosis, all 8 billable codes under E28 group to MS-DRG 742, 743, 760, or 761 (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.

Other codes that refer to E28

Notes on these codes point to E28.

  • N91 Excludes1: ovarian dysfunction (E28.-)

About the condition

Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.

Ovarian Disorders

The ovaries are a pair of female reproductive glands that make eggs and female hormones. Women have one ovary on each side of the uterus (where a fetus grows during pregnancy). Each ovary is about the size and shape of an almond.

Read more about ovarian disorders on MedlinePlus

Code history

Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.