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. O12- Gestational [pregnancy-induced] edema and proteinuria without hypertension
    5. ›
  5. 2021 ICD-10-CM Diagnosis Code O12.20

2021 ICD-10-CM Diagnosis Code O12.20

Gestational edema with proteinuria, unspecified trimester

    2016 2017 2018 2019 2020 2021 Billable/Specific Code Maternity Dx (12-55 years)
  • O12.20 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 O12.20 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of O12.20 - other international versions of ICD-10 O12.20 may differ.
ICD-10-CM Coding Rules
  • O12.20 is applicable to maternity patients aged 12 - 55 years inclusive.
The following code(s) above O12.20 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 O12.20:
  • 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
Approximate Synonyms
  • Gestational edema with proteinuria
  • Gestational edema with proteinuria (protein in urine)
ICD-10-CM O12.20 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 O12.20 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
ICD-10-CM Codes Adjacent To O12.20
O12.04 …… complicating childbirth
O12.05 …… complicating the puerperium
O12.1 Gestational proteinuria
O12.10 …… unspecified trimester
O12.11 …… first trimester
O12.12 …… second trimester
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

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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