2020 ICD-10-CM Diagnosis Code O13

Gestational [pregnancy-induced] hypertension without significant proteinuria

    2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
  • O13 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • Short description: Gestational hypertension without significant proteinuria
  • The 2020 edition of ICD-10-CM O13 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of O13 - other international versions of ICD-10 O13 may differ.
Includes
Includes Help
"Includes" further defines, or give examples of, the content of the code or category.
  • gestational hypertension NOS
  • transient hypertension of pregnancy
The following code(s) above O13 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 O13:
  • O00-O9A
    2020 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
Clinical Information
  • A condition in pregnant women with elevated systolic (>140 mm hg) and diastolic (>90 mm hg) blood pressure on at least two occasions 6 h apart. Hypertension complicates 8-10% of all pregnancies, generally after 20 weeks of gestation. Gestational hypertension can be divided into several broad categories according to the complexity and associated symptoms, such as edema; proteinuria; seizures; abnormalities in blood coagulation and liver functions.
  • The most common complication of pregnancy. It may appear as chronic hypertension or preeclampsia. It may cause brain hemorrhage, pulmonary edema, abruptio placentae, gestational diabetes mellitus, renal failure, premature delivery and fetal growth abnormalities.
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
ICD-10-CM Codes Adjacent To O13
O12.13 …… third trimester
O12.14 …… complicating childbirth
O12.15 …… complicating the puerperium
O12.2 Gestational edema with proteinuria
O12.20 …… unspecified trimester
O12.21 …… first trimester
O12.22 …… second trimester
O12.23 …… third trimester
O12.24 …… complicating childbirth
O12.25 …… complicating the puerperium
O13 Gestational [pregnancy-induced] hypertension without significant proteinuria
O13.1 Gestational [pregnancy-induced] hypertension without significant proteinuria, first trimester
O13.2 Gestational [pregnancy-induced] hypertension without significant proteinuria, second trimester
O13.3 Gestational [pregnancy-induced] hypertension without significant proteinuria, third trimester
O13.4 Gestational [pregnancy-induced] hypertension without significant proteinuria, complicating childbirth
O13.5 Gestational [pregnancy-induced] hypertension without significant proteinuria, complicating the puerperium
O13.9 Gestational [pregnancy-induced] hypertension without significant proteinuria, unspecified trimester
O14 Pre-eclampsia
O14.0 Mild to moderate pre-eclampsia
O14.00 …… unspecified trimester
O14.02 …… second trimester

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