2021 ICD-10-CM Diagnosis Code O20.9

Hemorrhage in early pregnancy, unspecified

    2016 2017 2018 2019 2020 2021 Billable/Specific Code Maternity Dx (12-55 years)
  • O20.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2021 edition of ICD-10-CM O20.9 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of O20.9 - other international versions of ICD-10 O20.9 may differ.
ICD-10-CM Coding Rules
  • O20.9 is applicable to maternity patients aged 12 - 55 years inclusive.
The following code(s) above O20.9 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 O20.9:
  • O00-O9A
    2021 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
    2021 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
  • O20
    ICD-10-CM Diagnosis Code O20

    Hemorrhage in early pregnancy

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Includes
    • hemorrhage before completion of 20 weeks gestation
    Type 1 Excludes
    • pregnancy with abortive outcome (O00-O08)
    Hemorrhage in early pregnancy
Approximate Synonyms
  • Hemorrhage in early pregnancy
ICD-10-CM O20.9 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
  • 817 Other antepartum diagnoses with o.r. Procedures with mcc
  • 818 Other antepartum diagnoses with o.r. Procedures with cc
  • 819 Other antepartum diagnoses with o.r. Procedures without cc/mcc
  • 831 Other antepartum diagnoses without o.r. Procedures with mcc
  • 832 Other antepartum diagnoses without o.r. Procedures with cc
  • 833 Other antepartum diagnoses without o.r. Procedures without cc/mcc

Convert O20.9 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

Diagnosis Index entries containing back-references to O20.9:
  • Hemorrhage, hemorrhagic (concealed) R58
    ICD-10-CM Diagnosis Code R58

    Hemorrhage, not elsewhere classified

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    • Hemorrhage NOS
    Type 1 Excludes
    • hemorrhage included with underlying conditions, such as:
    • acute duodenal ulcer with hemorrhage (K26.0)
    • acute gastritis with bleeding (K29.01)
    • ulcerative enterocolitis with rectal bleeding (K51.01)
    • antepartum (with) O46.90
      ICD-10-CM Diagnosis Code O46.90

      Antepartum hemorrhage, unspecified, unspecified trimester

        2016 2017 2018 2019 2020 2021 Billable/Specific Code Maternity Dx (12-55 years)
  • 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 Billable/Specific Code Maternity Dx (12-55 years)
    Applicable To
    • Pregnancy NOS
    • Pregnant state NOS
    Type 1 Excludes
    • complications of pregnancy (O00-O9A)
    • pregnant state, gestational carrier (Z33.3)

ICD-10-CM Codes Adjacent To O20.9
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
O22.0 Varicose veins of lower extremity in pregnancy
O22.00 …… unspecified trimester
O22.01 …… first trimester

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