2019 ICD-10-CM Diagnosis Code O11.2

Pre-existing hypertension with pre-eclampsia, second trimester

ICD-10-CM Coding Rules
The following code(s) above O11.2 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 O11.2:
  • O00-O9A
    2019 ICD-10-CM Range O00-O9A

    Pregnancy, childbirth and the puerperium

    • 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 Non-Billable/Non-Specific Code
    • 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 O11.2 is grouped within Diagnostic Related Group(s) (MS-DRG v36.0):

Convert O11.2 to ICD-9-CM

Code History
ICD-10-CM Codes Adjacent To O11.2
O10.9 Unspecified pre-existing hypertension complicating pregnancy, childbirth and the puerperium
O10.91 Unspecified pre-existing hypertension complicating pregnancy
O10.911 …… first trimester
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

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