2023

  1. ICD-10-CM Codes
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  2. O00-O9A
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  5. 2023 ICD-10-CM Diagnosis Code O02.1

2023 ICD-10-CM Diagnosis Code O02.1

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Missed abortion

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code Maternity Dx (12-55 years) Female Dx
  • O02.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2023 edition of ICD-10-CM O02.1 became effective on October 1, 2022.
  • This is the American ICD-10-CM version of O02.1 - other international versions of ICD-10 O02.1 may differ.
ICD-10-CM Coding Rules
  • O02.1 is applicable to maternity patients aged 12 - 55 years inclusive.
  • O02.1 is applicable to female patients.
Applicable To
  • Early fetal death, before completion of 20 weeks of gestation, with retention of dead fetus
Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as O02.1. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • failed induced abortion (
    ICD-10-CM Diagnosis Code O07
    • O07 Failed attempted termination of pregnancy
      • O07.0 Genital tract and pelvic infection following ...
      • O07.1 Delayed or excessive hemorrhage following fai...
      • O07.2 Embolism following failed attempted terminati...
      • O07.3 Failed attempted termination of pregnancy wit...
        • O07.30 Failed attempted termination of pregnancy wit...
        • O07.31 Shock following failed attempted termination ...
        • O07.32 Renal failure following failed attempted term...
        • O07.33 Metabolic disorder following failed attempted...
        • O07.34 Damage to pelvic organs following failed atte...
        • O07.35 Other venous complications following failed a...
        • O07.36 Cardiac arrest following failed attempted ter...
        • O07.37 Sepsis following failed attempted termination...
        • O07.38 Urinary tract infection following failed atte...
        • O07.39 Failed attempted termination of pregnancy wit...
      • O07.4 Failed attempted termination of pregnancy wit...
    O07.-
    )
  • fetal death (intrauterine) (late) (
    ICD-10-CM Diagnosis Code O36.4

    Maternal care for intrauterine death

      2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
    Applicable To
    • Maternal care for intrauterine fetal death NOS
    • Maternal care for intrauterine fetal death after completion of 20 weeks of gestation
    • Maternal care for late fetal death
    • Maternal care for missed delivery
    Type 1 Excludes
    O36.4
    )
  • missed abortion with blighted ovum (
    ICD-10-CM Diagnosis Code O02.0

    Blighted ovum and nonhydatidiform mole

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code Maternity Dx (12-55 years) Female Dx
    Applicable To
    • Carneous mole
    • Fleshy mole
    • Intrauterine mole NOS
    • Molar pregnancy NEC
    • Pathological ovum
    O02.0
    )
  • missed abortion with hydatidiform mole (
    ICD-10-CM Diagnosis Code O01
    • O01 Hydatidiform mole
      • O01.0 Classical hydatidiform mole
      • O01.1 Incomplete and partial hydatidiform mole
      • O01.9 Hydatidiform mole, unspecified
    O01.-
    )
  • missed abortion with nonhydatidiform (
    ICD-10-CM Diagnosis Code O02.0

    Blighted ovum and nonhydatidiform mole

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code Maternity Dx (12-55 years) Female Dx
    Applicable To
    • Carneous mole
    • Fleshy mole
    • Intrauterine mole NOS
    • Molar pregnancy NEC
    • Pathological ovum
    O02.0
    )
  • missed abortion with other abnormal products of conception (
    ICD-10-CM Diagnosis Code O02.8

    Other specified abnormal products of conception

      2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • abnormal products of conception with blighted ovum (O02.0)
    • abnormal products of conception with hydatidiform mole (O01.-)
    • abnormal products of conception with nonhydatidiform mole (O02.0)
    O02.8-
    )
  • missed delivery (
    ICD-10-CM Diagnosis Code O36.4

    Maternal care for intrauterine death

      2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
    Applicable To
    • Maternal care for intrauterine fetal death NOS
    • Maternal care for intrauterine fetal death after completion of 20 weeks of gestation
    • Maternal care for late fetal death
    • Maternal care for missed delivery
    Type 1 Excludes
    O36.4
    )
  • stillbirth (
    ICD-10-CM Diagnosis Code P95

    Stillbirth

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code Code on Newborn Record
    Applicable To
    • Deadborn fetus NOS
    • Fetal death of unspecified cause
    • Stillbirth NOS
    Type 1 Excludes
    P95
    )
The following code(s) above O02.1 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to O02.1:
  • O00-O9A
    2023 ICD-10-CM Range O00-O9A

    Pregnancy, childbirth and the puerperium

    Note
    • CODES FROM THIS CHAPTER ARE FOR USE ONLY ON MATERNAL RECORDS, NEVER ON NEWBORN RECORDS
    • Codes from this chapter are for use for conditions related to or aggravated by the pregnancy, childbirth, or by the puerperium (maternal causes or obstetric causes)
    • Trimesters are counted from the first day of the last menstrual period. They are defined as follows:
    • 1st trimester- less than 14 weeks 0 days
    • 2nd trimester- 14 weeks 0 days to less than 28 weeks 0 days
    • 3rd trimester- 28 weeks 0 days until delivery
    Type 1 Excludes
    • supervision of normal pregnancy (Z34.-)
    Type 2 Excludes
    • mental and behavioral disorders associated with the puerperium (F53.-)
    • obstetrical tetanus (A34)
    • postpartum necrosis of pituitary gland (E23.0)
    • puerperal osteomalacia (M83.0)
    Use Additional
    • code from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.
    Pregnancy, childbirth and the puerperium
  • O00-O08
    2023 ICD-10-CM Range O00-O08

    Pregnancy with abortive outcome

    Type 1 Excludes
    • continuing pregnancy in multiple gestation after abortion of one fetus or more (O31.1-, O31.3-)
    Pregnancy with abortive outcome
  • O02
    ICD-10-CM Diagnosis Code O02

    Other abnormal products of conception

      2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
    Type 1 Excludes
    Use Additional
    • code from category O08 to identify any associated complication.
    Other abnormal products of conception
Approximate Synonyms
  • Missed miscarriage
  • Past pregnancy loss
Clinical Information
  • Retention in uterus of an abortus that has been dead at least 4 weeks.
  • The retention in the uterus of a dead fetus two months or more after its death.
ICD-10-CM O02.1 is grouped within Diagnostic Related Group(s) (MS-DRG v40.0):
  • 770 Abortion with d&c, aspiration curettage or hysterotomy
  • 779 Abortion without d&c

Convert O02.1 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change
  • 2022 (effective 10/1/2021): No change
  • 2023 (effective 10/1/2022): No change
Code annotations containing back-references to O02.1:
  • Type 1 Excludes: P95
    , Z33.2
    , O36.4
    ICD-10-CM Diagnosis Code P95

    Stillbirth

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code Code on Newborn Record
    Applicable To
    • Deadborn fetus NOS
    • Fetal death of unspecified cause
    • Stillbirth NOS
    Type 1 Excludes
    ICD-10-CM Diagnosis Code Z33.2

    Encounter for elective termination of pregnancy

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code Maternity Dx (12-55 years) Female Dx
    Type 1 Excludes
    • early fetal death with retention of dead fetus (O02.1)
    • late fetal death (O36.4)
    • spontaneous abortion (O03)
    ICD-10-CM Diagnosis Code O36.4

    Maternal care for intrauterine death

      2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
    Applicable To
    • Maternal care for intrauterine fetal death NOS
    • Maternal care for intrauterine fetal death after completion of 20 weeks of gestation
    • Maternal care for late fetal death
    • Maternal care for missed delivery
    Type 1 Excludes

Diagnosis Index entries containing back-references to O02.1:
  • Abortion (complete) (spontaneous) O03.9
    ICD-10-CM Diagnosis Code O03.9

    Complete or unspecified spontaneous abortion without complication

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code Maternity Dx (12-55 years) Female Dx
    Applicable To
    • Miscarriage NOS
    • Spontaneous abortion NOS
    • missed O02.1
  • Dead
    • fetus, retained (mother) O36.4
      ICD-10-CM Diagnosis Code O36.4

      Maternal care for intrauterine death

        2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
      Applicable To
      • Maternal care for intrauterine fetal death NOS
      • Maternal care for intrauterine fetal death after completion of 20 weeks of gestation
      • Maternal care for late fetal death
      • Maternal care for missed delivery
      Type 1 Excludes
      • early pregnancy O02.1
  • Delivery (childbirth) (labor)
    • complicated O75.9
      ICD-10-CM Diagnosis Code O75.9

      Complication of labor and delivery, unspecified

        2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code Maternity Dx (12-55 years) Female Dx
      • by
        • fetal
          • death, early O02.1
        • intrauterine fetal death, early O02.1
  • Missed
    • abortion O02.1
  • Pregnancy (single) (uterine) Z33.1
    - see also Delivery and Puerperal
    ICD-10-CM Diagnosis Code Z33.1

    Pregnant state, incidental

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code Maternity Dx (12-55 years) Female Dx
    Applicable To
    • Pregnancy NOS
    • Pregnant state NOS
    Type 1 Excludes
    • complications of pregnancy (O00-O9A)
    • pregnant state, gestational carrier (Z33.3)
    • complicated by (care of) (management affected by)
      • death of fetus (near term) O36.4
        ICD-10-CM Diagnosis Code O36.4

        Maternal care for intrauterine death

          2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
        Applicable To
        • Maternal care for intrauterine fetal death NOS
        • Maternal care for intrauterine fetal death after completion of 20 weeks of gestation
        • Maternal care for late fetal death
        • Maternal care for missed delivery
        Type 1 Excludes
        • early pregnancy O02.1
      • fetal (maternal care for)
        • death (near term) O36.4
          ICD-10-CM Diagnosis Code O36.4

          Maternal care for intrauterine death

            2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
          Applicable To
          • Maternal care for intrauterine fetal death NOS
          • Maternal care for intrauterine fetal death after completion of 20 weeks of gestation
          • Maternal care for late fetal death
          • Maternal care for missed delivery
          Type 1 Excludes
          • early pregnancy O02.1
      • intrauterine fetal death (near term) O36.4
        ICD-10-CM Diagnosis Code O36.4

        Maternal care for intrauterine death

          2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
        Applicable To
        • Maternal care for intrauterine fetal death NOS
        • Maternal care for intrauterine fetal death after completion of 20 weeks of gestation
        • Maternal care for late fetal death
        • Maternal care for missed delivery
        Type 1 Excludes
        • early pregnancy O02.1
      • missed
        • abortion O02.1
  • Retention - see also Retained
    • dead
      • fetus (at or near term) (mother) O36.4
        ICD-10-CM Diagnosis Code O36.4

        Maternal care for intrauterine death

          2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
        Applicable To
        • Maternal care for intrauterine fetal death NOS
        • Maternal care for intrauterine fetal death after completion of 20 weeks of gestation
        • Maternal care for late fetal death
        • Maternal care for missed delivery
        Type 1 Excludes
        • early fetal death O02.1
    • fetus
      • dead O36.4
        ICD-10-CM Diagnosis Code O36.4

        Maternal care for intrauterine death

          2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
        Applicable To
        • Maternal care for intrauterine fetal death NOS
        • Maternal care for intrauterine fetal death after completion of 20 weeks of gestation
        • Maternal care for late fetal death
        • Maternal care for missed delivery
        Type 1 Excludes
        • early O02.1
    • products of conception
      • early pregnancy O02.1 (dead fetus)

ICD-10-CM Codes Adjacent To O02.1
O00.81 …… with intrauterine pregnancy
O00.9 Ectopic pregnancy, unspecified
O00.90 Unspecified ectopic pregnancy without intrauterine pregnancy
O00.91 Unspecified ectopic pregnancy with intrauterine pregnancy
O01 Hydatidiform mole
O01.0 Classical hydatidiform mole
O01.1 Incomplete and partial hydatidiform mole
O01.9 Hydatidiform mole, unspecified
O02 Other abnormal products of conception
O02.0 Blighted ovum and nonhydatidiform mole
O02.1 Missed abortion
O02.8 Other specified abnormal products of conception
O02.81 Inappropriate change in quantitative human chorionic gonadotropin (hCG) in early pregnancy
O02.89 Other abnormal products of conception
O02.9 Abnormal product of conception, unspecified
O03 Spontaneous abortion
O03.0 Genital tract and pelvic infection following incomplete spontaneous abortion
O03.1 Delayed or excessive hemorrhage following incomplete spontaneous abortion
O03.2 Embolism following incomplete spontaneous abortion
O03.3 Other and unspecified complications following incomplete spontaneous abortion
O03.30 Unspecified complication following incomplete spontaneous abortion

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

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