2023 ICD-10-CM Diagnosis Code O23

Infections of genitourinary tract in pregnancy

    2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
  • O23 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2023 edition of ICD-10-CM O23 became effective on October 1, 2022.
  • This is the American ICD-10-CM version of O23 - other international versions of ICD-10 O23 may differ.
Use Additional
Use Additional Help
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. In most cases the manifestation codes will have in the code title, "in diseases classified elsewhere." Codes with this title are a component of the etiology/manifestation convention. The code title indicates that it is a manifestation code. "In diseases classified elsewhere" codes are never permitted to be used as first listed or principle diagnosis codes. They must be used in conjunction with an underlying condition code and they must be listed following the underlying condition.
  • code to identify organism (
    ICD-10-CM Diagnosis Code B95
    • B95 Streptococcus, Staphylococcus, and Enterococc...
      • B95.0 Streptococcus, group A, as the cause of disea...
      • B95.1 Streptococcus, group B, as the cause of disea...
      • B95.2 Enterococcus as the cause of diseases classif...
      • B95.3 Streptococcus pneumoniae as the cause of dise...
      • B95.4 Other streptococcus as the cause of diseases ...
      • B95.5 Unspecified streptococcus as the cause of dis...
      • B95.6 Staphylococcus aureus as the cause of disease...
        • B95.61 Methicillin susceptible Staphylococcus aureus...
        • B95.62 Methicillin resistant Staphylococcus aureus i...
      • B95.7 Other staphylococcus as the cause of diseases...
      • B95.8 Unspecified staphylococcus as the cause of di...
    B95.-
    ,
    ICD-10-CM Diagnosis Code B96
    • B96 Other bacterial agents as the cause of diseas...
      • B96.0 Mycoplasma pneumoniae [M. pneumoniae] as the ...
      • B96.1 Klebsiella pneumoniae [K. pneumoniae] as the ...
      • B96.2 Escherichia coli [E. coli ] as the cause of d...
        • B96.20 Unspecified Escherichia coli [E. coli] as the...
        • B96.21 Shiga toxin-producing Escherichia coli [E. co...
        • B96.22 Other specified Shiga toxin-producing Escheri...
        • B96.23 Unspecified Shiga toxin-producing Escherichia...
        • B96.29 Other Escherichia coli [E. coli] as the cause...
      • B96.3 Hemophilus influenzae [H. influenzae] as the ...
      • B96.4 Proteus (mirabilis) (morganii) as the cause o...
      • B96.5 Pseudomonas (aeruginosa) (mallei) (pseudomall...
      • B96.6 Bacteroides fragilis [B. fragilis] as the cau...
      • B96.7 Clostridium perfringens [C. perfringens] as t...
      • B96.8 Other specified bacterial agents as the cause...
        • B96.81 Helicobacter pylori [H. pylori] as the cause ...
        • B96.82 Vibrio vulnificus as the cause of diseases cl...
        • B96.89 Other specified bacterial agents as the cause...
    B96.-
    )
Type 2 Excludes
Type 2 Excludes Help
A type 2 excludes note represents "not included here". A type 2 excludes note indicates that the condition excluded is not part of the condition it is excluded from but a patient may have both conditions at the same time. When a type 2 excludes note appears under a code it is acceptable to use both the code (O23) and the excluded code together.
  • gonococcal infections complicating pregnancy, childbirth and the puerperium (
    ICD-10-CM Diagnosis Code O98.2

    Gonorrhea complicating pregnancy, childbirth and the puerperium

      2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
    Applicable To
    O98.2
    )
  • infections with a predominantly sexual mode of transmission NOS complicating pregnancy, childbirth and the puerperium (
    ICD-10-CM Diagnosis Code O98.3

    Other infections with a predominantly sexual mode of transmission complicating pregnancy, childbirth and the puerperium

      2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
    Applicable To
    O98.3
    )
  • syphilis complicating pregnancy, childbirth and the puerperium (
    ICD-10-CM Diagnosis Code O98.1

    Syphilis complicating pregnancy, childbirth and the puerperium

      2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
    Applicable To
    O98.1
    )
  • tuberculosis of genitourinary system complicating pregnancy, childbirth and the puerperium (
    ICD-10-CM Diagnosis Code O98.0

    Tuberculosis complicating pregnancy, childbirth and the puerperium

      2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
    Applicable To
    O98.0
    )
  • venereal disease NOS complicating pregnancy, childbirth and the puerperium (
    ICD-10-CM Diagnosis Code O98.3

    Other infections with a predominantly sexual mode of transmission complicating pregnancy, childbirth and the puerperium

      2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
    Applicable To
    O98.3
    )
The following code(s) above O23 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:
  • O00-O9A
    2023 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
    2023 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
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
  • 2023 (effective 10/1/2022): No change
Code annotations containing back-references to O23:
  • Type 2 Excludes: O99.8
    ICD-10-CM Diagnosis Code O99.8

    Other specified diseases and conditions complicating pregnancy, childbirth and the puerperium

      2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
    Applicable To
    Type 2 Excludes
    • genitourinary infections in pregnancy (O23.-)
    • infection of genitourinary tract following delivery (O86.1-O86.4)
    • malignant neoplasm complicating pregnancy, childbirth and the puerperium (O9A.1-)
    • maternal care for known or suspected abnormality of maternal pelvic organs (O34.-)
    • postpartum acute kidney failure (O90.4)
    • traumatic injuries in pregnancy (O9A.2-)
    Use Additional
    • code to identify condition
ICD-10-CM Codes Adjacent To O23
O22.8X Other venous complications in pregnancy
O22.8X1 …… first trimester
O22.8X2 …… second trimester
O22.8X3 …… third trimester
O22.8X9 …… unspecified trimester
O22.9 Venous complication in pregnancy, unspecified
O22.90 …… unspecified trimester
O22.91 …… first trimester
O22.92 …… second trimester
O22.93 …… third trimester
O23 Infections of genitourinary tract in pregnancy
O23.0 Infections of kidney in pregnancy
O23.00 …… unspecified trimester
O23.01 …… first trimester
O23.02 …… second trimester
O23.03 …… third trimester
O23.1 Infections of bladder in pregnancy
O23.10 …… unspecified trimester
O23.11 …… first trimester
O23.12 …… second trimester
O23.13 …… third trimester

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