1. Home
  2. ICD-10-CM Codes List
  3. O00-O9A
  4. O00-O08
  5. Ectopic pregnancy (O00)

Ectopic pregnancy (O00)

ICD-10 code O00 classifies various types of ectopic pregnancy, where a fertilized egg implants outside the uterus. These codes specify the exact location and whether an intrauterine pregnancy is also present, facilitating precise diagnosis and treatment documentation.

The section includes codes for abdominal (O00.0), tubal (O00.1), ovarian (O00.2), and other ectopic pregnancies (O00.8), each with subcategories indicating the presence or absence of an intrauterine pregnancy. For example, the ICD-10 code for abdominal pregnancy (O00.00) covers cases also known as intraperitoneal or mesenteric pregnancy. Tubal pregnancy codes (O00.10–O00.19) detail location distinctions such as right or left fallopian tube involvement; synonyms like “ruptured tubal pregnancy” help clarify coding choices. Other types include ovarian pregnancy (O00.20 series) and rarer forms like cervical or cornual pregnancy (O00.80). Unspecified ectopic pregnancies are coded under O00.9, aiding cases where the exact site is not documented. Utilizing these specific ICD-10 codes ensures accurate clinical reporting of ectopic pregnancy variations for improved patient care and medical records.

  • Pregnancy, childbirth and the puerperium (O00-O9A)

    • Pregnancy with abortive outcome (O00-O08)

        • Ectopic pregnancy (O00)

        • O00 Ectopic pregnancy
        • O00.0 Abdominal pregnancy
        • O00.00 Abdominal pregnancy without intrauterine pregnancy
        • O00.01 Abdominal pregnancy with intrauterine pregnancy
        • O00.1 Tubal pregnancy
        • O00.10 Tubal pregnancy without intrauterine pregnancy
        • O00.101 Right tubal pregnancy without intrauterine pregnancy
        • O00.102 Left tubal pregnancy without intrauterine pregnancy
        • O00.109 Unspecified tubal pregnancy without intrauterine pregnancy
        • O00.11 Tubal pregnancy with intrauterine pregnancy
        • O00.111 Right tubal pregnancy with intrauterine pregnancy
        • O00.112 Left tubal pregnancy with intrauterine pregnancy
        • O00.119 Unspecified tubal pregnancy with intrauterine pregnancy
        • O00.2 Ovarian pregnancy
        • O00.20 Ovarian pregnancy without intrauterine pregnancy
        • O00.201 Right ovarian pregnancy without intrauterine pregnancy
        • O00.202 Left ovarian pregnancy without intrauterine pregnancy
        • O00.209 Unspecified ovarian pregnancy without intrauterine pregnancy
        • O00.21 Ovarian pregnancy with intrauterine pregnancy
        • O00.211 Right ovarian pregnancy with intrauterine pregnancy
        • O00.212 Left ovarian pregnancy with intrauterine pregnancy
        • O00.219 Unspecified ovarian pregnancy with intrauterine pregnancy
        • O00.8 Other ectopic pregnancy
        • O00.80 Other ectopic pregnancy without intrauterine pregnancy
        • O00.81 Other ectopic pregnancy with intrauterine pregnancy
        • O00.9 Ectopic pregnancy, unspecified
        • O00.90 Unspecified ectopic pregnancy without intrauterine pregnancy
        • O00.91 Unspecified ectopic pregnancy with intrauterine pregnancy

Instructional Notations

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

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