2023

  1. ICD-10-CM Codes
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  2. O00-O9A
    3. ›
  3. O20-O29
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  4. O20-
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  5. 2023 ICD-10-CM Diagnosis Code O20

2023 ICD-10-CM Diagnosis Code O20

Hemorrhage in early pregnancy

    2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
  • O20 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2023 edition of ICD-10-CM O20 became effective on October 1, 2022.
  • This is the American ICD-10-CM version of O20 - other international versions of ICD-10 O20 may differ.
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 O20. 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.
  • pregnancy with abortive outcome (O00-O08
    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-)
    • O00 Ectopic pregnancy
    • O01 Hydatidiform mole
    • O02 Other abnormal products of conception
    • O03 Spontaneous abortion
    • O04 Complications following (induced) termin...
    • O07 Failed attempted termination of pregnanc...
    • O08 Complications following ectopic and mola...
    )
Includes
Includes Help
"Includes" further defines, or give examples of, the content of the code or category.
  • hemorrhage before completion of 20 weeks gestation
The following code(s) above O20 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 O20:
  • 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
  • O20-O29
    2023 ICD-10-CM Range O20-O29

    Other maternal disorders predominantly related to pregnancy

    Type 2 Excludes
    • maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)
    • maternal diseases classifiable elsewhere but complicating pregnancy, labor and delivery, and the puerperium (O98-O99)
    Other maternal disorders predominantly related to pregnancy
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 O20:
  • Type 1 Excludes: O46
    ICD-10-CM Diagnosis Code O46

    Antepartum hemorrhage, not elsewhere classified

      2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • hemorrhage in early pregnancy (O20.-)
    • intrapartum hemorrhage NEC (O67.-)
    • placenta previa (O44.-)
    • premature separation of placenta [abruptio placentae] (O45.-)
ICD-10-CM Codes Adjacent To O20
O15.1 Eclampsia complicating labor
O15.2 Eclampsia complicating the puerperium
O15.9 Eclampsia, unspecified as to time period
O16 Unspecified maternal hypertension
O16.1 Unspecified maternal hypertension, first trimester
O16.2 Unspecified maternal hypertension, second trimester
O16.3 Unspecified maternal hypertension, third trimester
O16.4 Unspecified maternal hypertension, complicating childbirth
O16.5 Unspecified maternal hypertension, complicating the puerperium
O16.9 Unspecified maternal hypertension, unspecified trimester
O20 Hemorrhage in early pregnancy
O20.0 Threatened abortion
O20.8 Other hemorrhage in early pregnancy
O20.9 Hemorrhage in early pregnancy, unspecified
O21 Excessive vomiting in pregnancy
O21.0 Mild hyperemesis gravidarum
O21.1 Hyperemesis gravidarum with metabolic disturbance
O21.2 Late vomiting of pregnancy
O21.8 Other vomiting complicating pregnancy
O21.9 Vomiting of pregnancy, unspecified
O22 Venous complications and hemorrhoids in pregnancy

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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