1. Home
  2. ICD-10-CM Codes
  3. O00-O9A
  4. O00-O08
  5. O00
  6. 2026 ICD-10-CM Code O00

2026 ICD-10-CM Diagnosis Code O00

Ectopic pregnancy

ICD-10-CM Code:
O00
ICD-10 Code for:
Ectopic pregnancy
Is Billable?
Not Valid for Submission
Code Navigator:

O00 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of ectopic pregnancy. The code is not specific and is NOT valid for the year 2026 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Specific Coding Applicable to Ectopic pregnancy

Non-specific codes like O00 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10-CM codes with a higher level of specificity when coding for ectopic pregnancy:

  • O00.0 for Abdominal pregnancy - NON-BILLABLE CODE

  • Use O00.00 for Abdominal pregnancy without intrauterine pregnancy - BILLABLE CODE

  • Use O00.01 for Abdominal pregnancy with intrauterine pregnancy - BILLABLE CODE

  • O00.1 for Tubal pregnancy - NON-BILLABLE CODE

  • O00.10 for Tubal pregnancy without intrauterine pregnancy - NON-BILLABLE CODE

  • O00.11 for Tubal pregnancy with intrauterine pregnancy - NON-BILLABLE CODE

  • O00.2 for Ovarian pregnancy - NON-BILLABLE CODE

  • O00.20 for Ovarian pregnancy without intrauterine pregnancy - NON-BILLABLE CODE

  • O00.21 for Ovarian pregnancy with intrauterine pregnancy - NON-BILLABLE CODE

  • O00.8 for Other ectopic pregnancy - NON-BILLABLE CODE

  • Use O00.80 for Other ectopic pregnancy without intrauterine pregnancy - BILLABLE CODE

  • Use O00.81 for Other ectopic pregnancy with intrauterine pregnancy - BILLABLE CODE

  • O00.9 for Ectopic pregnancy, unspecified - NON-BILLABLE CODE

  • Use O00.90 for Unspecified ectopic pregnancy without intrauterine pregnancy - BILLABLE CODE

  • Use O00.91 for Unspecified ectopic pregnancy with intrauterine pregnancy - BILLABLE CODE

Code Classification

  • Pregnancy, childbirth and the puerperium
    O00-O9A
    • Pregnancy with abortive outcome
      O00-O08
      • Ectopic pregnancy
        O00

Tabular List of Diseases and Injuries

The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.


Includes

Includes
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
  • ruptured ectopic pregnancy

Use Additional Code

Use Additional Code
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
  • code from category O08

Patient Education


Ectopic Pregnancy

What is an ectopic pregnancy?

The uterus, or womb, is the place where a fetus grows during pregnancy. In an ectopic pregnancy, the fertilized egg grows in the wrong place outside the uterus. It usually occurs in the fallopian tubes. These tubes carry eggs from the ovaries to the uterus. Sometimes, an ectopic pregnancy can occur in the ovaries, abdominal cavity, or the lower part of the uterus (cervix).

Ectopic pregnancies can't end in a healthy pregnancy because the egg cannot grow. If the pregnancy continues, the fallopian tube can burst. This can cause internal bleeding, which can be a life-threatening emergency that needs immediate surgery.

What increases my risk of an ectopic pregnancy?

An ectopic pregnancy often happens because there is a problem with your fallopian tubes. But sometimes it's not clear why an ectopic pregnancy happens.

Factors that may increase your risk for an ectopic pregnancy can include:

  • Previous ectopic pregnancy
  • Prior pelvic, abdominal, or fallopian tube surgery
  • Certain sexually transmitted infections (STIs)
  • Pelvic inflammatory disease
  • Endometriosis
  • Becoming pregnant while using an intrauterine device (IUD) for birth control
  • Becoming pregnant after a tubal ligation

Other factors that may increase your risk can include:

  • Smoking
  • Being older than age 35
  • Infertility treatments

What are the symptoms of an ectopic pregnancy?

You may not notice any symptoms at first. Or you may have some of the usual signs of pregnancy such as a missed period, breast tenderness, or nausea.

Early signs of an ectopic pregnancy may be light vaginal bleeding and pelvic pain. Ectopic pregnancy can be a medical emergency. Get medical care right away if you have these signs:

  • Abdominal (belly) pain
  • Shoulder pain
  • Vaginal bleeding
  • Feeling dizzy or faint

How is an ectopic pregnancy diagnosed?

An ectopic pregnancy can't be diagnosed without blood tests and an ultrasound. Your health care provider will do a pregnancy test to confirm that you're pregnant. They may do a pelvic exam to check for areas of pain, tenderness, or a mass.

What is the treatment for an ectopic pregnancy?

An ectopic pregnancy needs treatment to stop any damage to your organs. Your provider will use medicine or surgery to take out the ectopic tissue.

Losing a pregnancy can be devastating. An ectopic pregnancy is like a miscarriage, but it must be treated to prevent problems. People cope with grief in different ways. It may be helpful to discuss your feelings with your provider or a counselor. 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


[Learn More in MedlinePlus]

Code History

  • FY 2026 - No Change, effective from 10/1/2025 through 9/30/2026
  • FY 2025 - No Change, effective from 10/1/2024 through 9/30/2025
  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.