ICD-10 Code O00.21

Ovarian pregnancy with intrauterine pregnancy

Diagnosis Code O00.21

ICD-10: O00.21
Short Description: Ovarian pregnancy with intrauterine pregnancy
Long Description: Ovarian pregnancy with intrauterine pregnancy
Version 2019 of the ICD-10-CM diagnosis code O00.21

Not Valid for Submission
The code O00.21 is a "header" nonspecific and is not valid for submission for HIPAA-covered transactions. Consider using a similar code with the correct level of specificity.

Deleted Code
This code was deleted in the 2019 ICD-10 code set with the code(s) listed below. The National Center for Health Statistics (NCHS) has published an update to the ICD-10-CM diagnosis codes which became effective October 1, 2018. This code was replaced for the FY 2019 (October 1, 2018 - September 30, 2019).
  • O00.211 - Right ovarian pregnancy with intrauterine pregnancy
  • O00.212 - Left ovarian pregnancy with intrauterine pregnancy
  • O00.219 - Unspecified ovarian pregnancy with intrauterine pregnancy

Code Classification
  • Pregnancy, childbirth and the puerperium (O00–O99)
    • Pregnancy with abortive outcome (O00-O08)
      • Ectopic pregnancy (O00)
Version 2019 Replaced Code Non-Billable Code

Information for Medical Professionals

Index to Diseases and Injuries
References found for the code O00.21 in the Index to Diseases and Injuries:


Replacement Code
This code replaces the following previously assigned ICD-10 code(s) listed below:
  • O00.2 - Ovarian pregnancy


Information for Patients


Ectopic Pregnancy

Also called: Abdominal pregnancy, Tubal pregnancy

The uterus, or womb, is the place where a baby grows when a woman is pregnant. If you have an ectopic pregnancy, the fertilized egg grows in the wrong place, outside the uterus, usually in the fallopian tubes. The result is usually a miscarriage.

Ectopic pregnancy can be a medical emergency if it ruptures. Signs of ectopic pregnancy include

  • Abdominal pain
  • Shoulder pain
  • Vaginal bleeding
  • Feeling dizzy or faint

Get medical care right away if you have these signs. Doctors use drugs or surgery to remove the ectopic tissue so it doesn't damage your organs. Many women who have had ectopic pregnancies go on to have healthy pregnancies later.

Dept. of Health and Human Services Office on Women's Health

  • D and C (Medical Encyclopedia)
  • Ectopic pregnancy (Medical Encyclopedia)
  • HCG blood test - quantitative (Medical Encyclopedia)

[Read More]

ICD-10 Footnotes

General Equivalence Map Definitions
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.

  • Approximate Flag - The approximate flag is on, indicating that the relationship between the code in the source system and the code in the target system is an approximate equivalent.
  • No Map Flag - The no map flag indicates that a code in the source system is not linked to any code in the target system.
  • Combination Flag - The combination flag indicates that more than one code in the target system is required to satisfy the full equivalent meaning of a code in the source system.

Present 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.

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