2022

  1. ICD-10-CM Codes
    2. ›
  2. O00-O9A Pregnancy, childbirth and the puerperium
    3. ›
  3. O10-O16 Edema, proteinuria and hypertensive disorders in pregnancy, childbirth and the puerperium
    4. ›
  4. O15- Eclampsia
    5. ›
  5. 2022 ICD-10-CM Diagnosis Code O15.9

2022 ICD-10-CM Diagnosis Code O15.9

Eclampsia, unspecified as to time period

    2016 2017 2018 2019 2020 2021 2022 Billable/Specific Code Maternity Dx (12-55 years)
  • O15.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2022 edition of ICD-10-CM O15.9 became effective on October 1, 2021.
  • This is the American ICD-10-CM version of O15.9 - other international versions of ICD-10 O15.9 may differ.
ICD-10-CM Coding Rules
  • O15.9 is applicable to maternity patients aged 12 - 55 years inclusive.
Applicable To
  • Eclampsia NOS
The following code(s) above O15.9 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 O15.9:
  • O00-O9A
    2022 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
  • O15
    ICD-10-CM Diagnosis Code O15

    Eclampsia

      2016 2017 2018 2019 2020 2021 2022 Non-Billable/Non-Specific Code
    Includes
    • convulsions following conditions in O10-O14 and O16
    Eclampsia
Clinical Information
  • A potentially life-threatening disorder in pregnant or puerperal women manifested by convulsions in association with hypertension, edema, and/or proteinuria.
  • Convulsions and coma occurring in pregnant or puerperal women, associated with hypertension, edema, and proteinuria.
  • Onset of hyperreflexia; seizures; or coma in a previously diagnosed pre-eclamptic patient (pre-eclampsia).
ICD-10-CM O15.9 is grouped within Diagnostic Related Group(s) (MS-DRG v39.0):
  • 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 O15.9 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
  • 2022 (effective 10/1/2021): No change
Code annotations containing back-references to O15.9:
  • Code First: I67.841
    ICD-10-CM Diagnosis Code I67.841

    Reversible cerebrovascular vasoconstriction syndrome

      2016 2017 2018 2019 2020 2021 2022 Billable/Specific Code
    Applicable To
    • Call-Fleming syndrome
    Code First
    • underlying condition, if applicable, such as eclampsia (O15.00-O15.9)

Diagnosis Index entries containing back-references to O15.9:
  • Eclampsia, eclamptic (coma) (convulsions) (delirium) (with hypertension) O15.9
  • 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 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 O15.9
O14.93 …… third trimester
O14.94 …… complicating childbirth
O14.95 …… complicating the puerperium
O15 Eclampsia
O15.0 Eclampsia complicating pregnancy
O15.00 …… unspecified trimester
O15.02 …… second trimester
O15.03 …… third trimester
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

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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