ICD-10 Diagnosis Code Z90.721

Acquired absence of ovaries, unilateral

Diagnosis Code Z90.721

ICD-10: Z90.721
Short Description: Acquired absence of ovaries, unilateral
Long Description: Acquired absence of ovaries, unilateral
This is the 2017 version of the ICD-10-CM diagnosis code Z90.721

Code Classification
  • Factors influencing health status and contact with health services
    • Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99)
      • Acquired absence of organs, not elsewhere classified (Z90)

Information for Medical Professionals

Code Edits
The following edits are applicable to this code:
Diagnoses for females only Additional informationCallout TooltipDiagnoses for females only
Diagnoses for females only.

Unacceptable principal diagnosis Additional informationCallout TooltipUnacceptable principal diagnosis
There are selected codes that describe a circumstance which influences an individual’s health status but not a current illness or injury, or codes that are not specific manifestations but may be due to an underlying cause. These codes are considered unacceptable as a principal diagnosis.

Diagnostic Related Groups
The diagnosis code Z90.721 is grouped in the following Diagnostic Related Group(s) (MS-DRG v33.0)


Convert to ICD-9 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

Present on Admission (POA) Additional informationCallout TooltipPresent on Admission
The Present on Admission (POA) indicator is used for diagnosis codes included in claims involving inpatient admissions to general acute care hospitals. POA indicators must be reported to CMS on each claim to facilitate the grouping of diagnoses codes into the proper Diagnostic Related Groups (DRG). CMS publishes a listing of specific diagnosis codes that are exempt from the POA reporting requirement.

The code Z90.721 is exempt from POA reporting.

  • Absent ovary, acquired
  • History of left oophorectomy
  • History of right oophorectomy
  • History of unilateral oophorectomy
  • Unilateral excision of fallopian tube and ovary
  • Unilateral excision of ovary

Information for Patients

Ovarian Disorders

The ovaries are a pair of organs that women have. They are located in the pelvis, one on each side of the uterus. Each ovary is about the size and shape of an almond.

The ovaries produce a woman's eggs. If an egg is fertilized by a sperm, a pregnancy can result. Ovaries also make the female hormones estrogen and progesterone. When a woman goes through menopause, her ovaries stop releasing eggs and make far lower levels of hormones.

Problems with the ovaries include

  • Ovarian cancer
  • Ovarian cysts and polycystic ovary syndrome
  • Premature ovarian failure
  • Ovarian torsion, a twisting of the ovary

  • Ovarian hyperstimulation syndrome
  • Ovarian overproduction of androgens

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