2021

  1. ICD-10-CM Codes
    2. ›
  2. O00-O9A Pregnancy, childbirth and the puerperium
    3. ›
  3. O20-O29 Other maternal disorders predominantly related to pregnancy
    4. ›
  4. O23- Infections of genitourinary tract in pregnancy
    5. ›
  5. 2021 ICD-10-CM Diagnosis Code O23.599

2021 ICD-10-CM Diagnosis Code O23.599

Infection of other part of genital tract in pregnancy, unspecified trimester

    2016 2017 2018 2019 2020 2021 Billable/Specific Code Maternity Dx (12-55 years)
  • O23.599 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • Short description: Infection oth prt genital tract in pregnancy, unsp trimester
  • The 2021 edition of ICD-10-CM O23.599 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of O23.599 - other international versions of ICD-10 O23.599 may differ.
ICD-10-CM Coding Rules
  • O23.599 is applicable to maternity patients aged 12 - 55 years inclusive.
The following code(s) above O23.599 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 O23.599:
  • 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
  • O20-O29
    2021 ICD-10-CM Range O20-O29

    Other maternal disorders predominantly related to pregnancy

    Type 2 Excludes
    • maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)
    • maternal diseases classifiable elsewhere but complicating pregnancy, labor and delivery, and the puerperium (O98-O99)
    Other maternal disorders predominantly related to pregnancy
  • O23
    ICD-10-CM Diagnosis Code O23

    Infections of genitourinary tract in pregnancy

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Type 2 Excludes
    • gonococcal infections complicating pregnancy, childbirth and the puerperium (O98.2)
    • infections with a predominantly sexual mode of transmission NOS complicating pregnancy, childbirth and the puerperium (O98.3)
    • syphilis complicating pregnancy, childbirth and the puerperium (O98.1)
    • tuberculosis of genitourinary system complicating pregnancy, childbirth and the puerperium (O98.0)
    • venereal disease NOS complicating pregnancy, childbirth and the puerperium (O98.3)
    Use Additional
    Infections of genitourinary tract in pregnancy
Approximate Synonyms
  • Bacterial vaginitis in pregnancy
  • Bacterial vaginosis in pregnancy
  • Candida vaginitis in pregnancy
  • Candidiasis of vagina in pregnancy
  • Trichomonal vaginitis in pregnancy
  • Trichomonas vaginitis in pregnancy
  • Vaginitis in pregnancy
ICD-10-CM O23.599 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 O23.599 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 O23.599
O23.519 Infections of cervix in pregnancy, unspecified trimester
O23.52 Salpingo-oophoritis in pregnancy
O23.521 …… first trimester
O23.522 …… second trimester
O23.523 …… third trimester
O23.529 …… unspecified trimester
O23.59 Infection of other part of genital tract in pregnancy
O23.591 …… first trimester
O23.592 …… second trimester
O23.593 …… third trimester
O23.599 …… unspecified trimester
O23.9 Unspecified genitourinary tract infection in pregnancy
O23.90 …… unspecified trimester
O23.91 …… first trimester
O23.92 …… second trimester
O23.93 …… third trimester
O24 Diabetes mellitus in pregnancy, childbirth, and the puerperium
O24.0 Pre-existing type 1 diabetes mellitus, in pregnancy, childbirth and the puerperium
O24.01 Pre-existing type 1 diabetes mellitus, in pregnancy
O24.011 …… first trimester
O24.012 …… second trimester

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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