2021

  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. O11- Pre-existing hypertension with pre-eclampsia
    5. ›
  5. 2021 ICD-10-CM Diagnosis Code O11.5

2021 ICD-10-CM Diagnosis Code O11.5

Pre-existing hypertension with pre-eclampsia, complicating the puerperium

    2017 - New Code 2018 2019 2020 2021 Billable/Specific Code Maternity Dx (12-55 years)
  • O11.5 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • Short description: Pre-existing htn with pre-eclampsia, comp the puerperium
  • The 2021 edition of ICD-10-CM O11.5 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of O11.5 - other international versions of ICD-10 O11.5 may differ.
ICD-10-CM Coding Rules
  • O11.5 is applicable to maternity patients aged 12 - 55 years inclusive.
The following code(s) above O11.5 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 O11.5:
  • 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
  • O11
    ICD-10-CM Diagnosis Code O11

    Pre-existing hypertension with pre-eclampsia

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Includes
    • conditions in Ol0 complicated by pre-eclampsia
    • pre-eclampsia superimposed pre-existing hypertension
    Use Additional
    • code from O10 to identify the type of hypertension
    Pre-existing hypertension with pre-eclampsia
ICD-10-CM O11.5 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
  • 769 Postpartum and post abortion diagnoses with o.r. Procedure
  • 776 Postpartum and post abortion diagnoses without o.r. Procedure

Convert O11.5 to ICD-9-CM

Code History
  • 2017 (effective 10/1/2016): New code
  • 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 O11.5:
  • Hypertension, hypertensive (accelerated) (benign) (essential) (idiopathic) (malignant) (systemic) I10
    ICD-10-CM Diagnosis Code I10

    Essential (primary) hypertension

      2016 2017 2018 2019 2020 2021 Billable/Specific Code Questionable As Admission Dx
    Includes
    • high blood pressure
    • hypertension (arterial) (benign) (essential) (malignant) (primary) (systemic)
    Type 1 Excludes
    • hypertensive disease complicating pregnancy, childbirth and the puerperium (O10-O11, O13-O16)
    Type 2 Excludes
    • essential (primary) hypertension involving vessels of brain (I60-I69)
    • essential (primary) hypertension involving vessels of eye (H35.0-)

ICD-10-CM Codes Adjacent To O11.5
O10.912 …… second trimester
O10.913 …… third trimester
O10.919 …… unspecified trimester
O10.92 Unspecified pre-existing hypertension complicating childbirth
O10.93 Unspecified pre-existing hypertension complicating the puerperium
O11 Pre-existing hypertension with pre-eclampsia
O11.1 Pre-existing hypertension with pre-eclampsia, first trimester
O11.2 Pre-existing hypertension with pre-eclampsia, second trimester
O11.3 Pre-existing hypertension with pre-eclampsia, third trimester
O11.4 Pre-existing hypertension with pre-eclampsia, complicating childbirth
O11.5 Pre-existing hypertension with pre-eclampsia, complicating the puerperium
O11.9 Pre-existing hypertension with pre-eclampsia, unspecified trimester
O12 Gestational [pregnancy-induced] edema and proteinuria without hypertension
O12.0 Gestational edema
O12.00 …… unspecified trimester
O12.01 …… first trimester
O12.02 …… second trimester
O12.03 …… third trimester
O12.04 …… complicating childbirth
O12.05 …… complicating the puerperium
O12.1 Gestational proteinuria

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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