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    v1.0.28
    OpenPayerBilling CodesPregnancy with abortive outcomeICD-10-CM o00-ectopic-pregnancy
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    ICD-10-CM Code For Ectopic Pregnancy: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group O00 includes diagnoses for ectopic pregnancy, encompassing tubal, ovarian, cervical, abdominal, and other extrauterine implantations and their complications. These ICD-10-CM diagnosis codes are used to document clinical scenarios such as ruptured or unruptured ectopic pregnancies, hemorrhage, and management-related encounters capturing disease severity and clinical complexity. Accurate coding within the ICD-10-CM O00 group supports proper claim adjudication and complete clinical documentation for appropriate reimbursement.

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    ICD-10-CM O00: Ectopic Pregnancy Overview

    The ICD-10-CM O00 group covers ectopic pregnancies, where a fertilized ovum implants outside the uterine cavity, most commonly in the fallopian tube. These diagnoses target conditions of early pregnancy with abnormal implantation and potential complications such as rupture or hemorrhage. Accurate coding is important for clinical documentation and supports appropriate reimbursement by reflecting the complexity and acuity of care.

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    When to Use

    Use a code from this group when documenting a confirmed ectopic pregnancy or its complications during the current episode of care. Codes in this group are also used for encounters for treatment, follow-up, and management of ectopic pregnancy and related hemorrhagic events.

    ICD-10-CM Codes

    18 rows

    ICD-10-CM CodeDescription
    O00.00Abdominal pregnancy without intrauterine pregnancy
    O00.01Abdominal pregnancy with intrauterine pregnancy
    O00.101Right tubal pregnancy without intrauterine pregnancy
    O00.102Left tubal pregnancy without intrauterine pregnancy
    O00.109Unspecified tubal pregnancy without intrauterine pregnancy
    O00.111Right tubal pregnancy with intrauterine pregnancy
    O00.112Left tubal pregnancy with intrauterine pregnancy
    O00.119Unspecified tubal pregnancy with intrauterine pregnancy
    O00.201Right ovarian pregnancy without intrauterine pregnancy
    O00.202Left ovarian pregnancy without intrauterine pregnancy
    O00.209Unspecified ovarian pregnancy without intrauterine pregnancy
    O00.211Right ovarian pregnancy with intrauterine pregnancy
    O00.212Left ovarian pregnancy with intrauterine pregnancy
    O00.219Unspecified ovarian pregnancy with intrauterine pregnancy
    O00.80Other ectopic pregnancy without intrauterine pregnancy
    O00.81Other ectopic pregnancy with intrauterine pregnancy
    O00.90Unspecified ectopic pregnancy without intrauterine pregnancy
    O00.91Unspecified ectopic pregnancy with intrauterine pregnancy

    DRG Codes

    6 rows

    DRG CodeDescription
    817Other Antepartum Diagnoses with O.R. Procedures with MCC
    818Other Antepartum Diagnoses with O.R. Procedures with CC
    819Other Antepartum Diagnoses with O.R. Procedures without CC/MCC
    831Other Antepartum Diagnoses without O.R. Procedures with MCC
    832Other Antepartum Diagnoses without O.R. Procedures with CC
    833Other Antepartum Diagnoses without O.R. Procedures without CC/MCC

    Typical Clinical Scenarios

    • A woman in her early 30s presents to the emergency department with sudden onset lower abdominal pain, vaginal bleeding, and lightheadedness after a missed period; transvaginal ultrasound shows an adnexal mass with no intrauterine pregnancy and free pelvic fluid concerning for a ruptured tubal ectopic pregnancy. She is hemodynamically unstable and requires urgent surgical management, so an ectopic pregnancy diagnosis code indicating a ruptured tubal ectopic is assigned. Typical codes: O00.10, O00.11.
    • A patient in her late 20s is seen in clinic for persistent pelvic pain and a positive pregnancy test; ultrasound demonstrates an unruptured tubal ectopic pregnancy without hemodynamic compromise, and she is managed medically with methotrexate as an outpatient. Because the ectopic is located in the fallopian tube and is being treated nonoperatively, an ectopic pregnancy code for an unruptured tubal ectopic is used. Typical codes: O00.101, O00.109.
    • A pregnant patient with a prior history of ectopic surgery presents during early pregnancy with suspicion for a cervical or cesarean scar ectopic after transvaginal ultrasound localizes the gestation outside the uterine cavity at a non-tubal site; management decisions hinge on the atypical location and increased risk of hemorrhage. A site-specific ectopic pregnancy code for other specified ectopic locations is assigned to reflect the non-tubal implantation and inform subsequent specialty care. Typical codes: O00.80, O00.81.

    Related Codes

    O01-HYDATIDIFORM-MOLE

    ICD-10-CM Code For Hydatidiform Mole: Group Overview

    O02-OTHER-ABNORMAL-PRODUCTS-OF-CONCEPTION

    ICD-10-CM Code For Other Abnormal Products Of Conception: Group Overview

    O03-SPONTANEOUS-ABORTION

    ICD-10-CM Code For Spontaneous Abortion: Group Overview

    O04-COMPLICATIONS-FOLLOWING-TERMINATION-OF-PREGNANCY

    ICD-10-CM Code For Complications Following Induced Termination Of Pregnancy: Group Overview

    O07-FAILED-ATTEMPTED-TERMINATION-OF-PREGNANCY

    ICD-10-CM Code For Failed Attempted Termination Of Pregnancy: Group Overview

    O08-COMPLICATIONS-FOLLOWING-ECTOPIC-AND-MOLAR-PREGNANCY

    ICD-10-CM Code For Complications Following Ectopic And Molar Pregnancy: Group Overview

    Frequently Asked Questions

    References

    1. 1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
    2. 2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
    3. 3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.
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