All ICD10 Codes
Chapter 15

O00–O9A: Pregnancy, Childbirth and the Puerperium

Pregnancy, Childbirth and the Puerperium diagnostic classification updated for 2026.

Chapter Instructions

Excludes1(Not coded here. Use a different code.)
  • supervision of normal pregnancy (Z34.-)
Excludes2(Not included here. Code separately if applicable.)
  • 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
  • code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.
All CodesBillable Only
Internal Codes
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  • O23.10|

    Infections of bladder in pregnancy, unspecified trimester

  • O23.11|

    Infections of bladder in pregnancy, first trimester

  • O23.12|

    Infections of bladder in pregnancy, second trimester

  • O23.13|

    Infections of bladder in pregnancy, third trimester

  • O23.20|

    Infections of urethra in pregnancy, unspecified trimester

  • O23.21|

    Infections of urethra in pregnancy, first trimester

  • O23.22|

    Infections of urethra in pregnancy, second trimester

  • O23.23|

    Infections of urethra in pregnancy, third trimester

  • O23.30|

    Infections of other parts of urinary tract in pregnancy, unspecified trimester

  • O23.31|

    Infections of other parts of urinary tract in pregnancy, first trimester

  • O23.32|

    Infections of other parts of urinary tract in pregnancy, second trimester

  • O23.33|

    Infections of other parts of urinary tract in pregnancy, third trimester

  • O23.40|

    Unspecified infection of urinary tract in pregnancy, unspecified trimester

  • O23.41|

    Unspecified infection of urinary tract in pregnancy, first trimester

  • O23.42|

    Unspecified infection of urinary tract in pregnancy, second trimester

  • O23.43|

    Unspecified infection of urinary tract in pregnancy, third trimester

  • O23.511|

    Infections of cervix in pregnancy, first trimester

  • O23.512|

    Infections of cervix in pregnancy, second trimester

  • O23.513|

    Infections of cervix in pregnancy, third trimester

  • O23.519|

    Infections of cervix in pregnancy, unspecified trimester

  • O23.521|

    Salpingo-oophoritis in pregnancy, first trimester

  • O23.522|

    Salpingo-oophoritis in pregnancy, second trimester

  • O23.523|

    Salpingo-oophoritis in pregnancy, third trimester

  • O23.529|

    Salpingo-oophoritis in pregnancy, unspecified trimester

  • O23.591|

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

  • O23.592|

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

  • O23.593|

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

  • O23.599|

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

  • O23.90|

    Unspecified genitourinary tract infection in pregnancy, unspecified trimester

  • O23.91|

    Unspecified genitourinary tract infection in pregnancy, first trimester

  • O23.92|

    Unspecified genitourinary tract infection in pregnancy, second trimester

  • O23.93|

    Unspecified genitourinary tract infection in pregnancy, third trimester

  • O24.011|

    Pre-existing type 1 diabetes mellitus, in pregnancy, first trimester

  • O24.012|

    Pre-existing type 1 diabetes mellitus, in pregnancy, second trimester

  • O24.013|

    Pre-existing type 1 diabetes mellitus, in pregnancy, third trimester

  • O24.019|

    Pre-existing type 1 diabetes mellitus, in pregnancy, unspecified trimester

  • O24.02|

    Pre-existing type 1 diabetes mellitus, in childbirth

  • O24.03|

    Pre-existing type 1 diabetes mellitus, in the puerperium

  • O24.111|

    Pre-existing type 2 diabetes mellitus, in pregnancy, first trimester

  • O24.112|

    Pre-existing type 2 diabetes mellitus, in pregnancy, second trimester

  • O24.113|

    Pre-existing type 2 diabetes mellitus, in pregnancy, third trimester

  • O24.119|

    Pre-existing type 2 diabetes mellitus, in pregnancy, unspecified trimester

  • O24.12|

    Pre-existing type 2 diabetes mellitus, in childbirth

  • O24.13|

    Pre-existing type 2 diabetes mellitus, in the puerperium

  • O24.311|

    Unspecified pre-existing diabetes mellitus in pregnancy, first trimester

  • O24.312|

    Unspecified pre-existing diabetes mellitus in pregnancy, second trimester

  • O24.313|

    Unspecified pre-existing diabetes mellitus in pregnancy, third trimester

  • O24.319|

    Unspecified pre-existing diabetes mellitus in pregnancy, unspecified trimester

  • O24.32|

    Unspecified pre-existing diabetes mellitus in childbirth

  • O24.33|

    Unspecified pre-existing diabetes mellitus in the puerperium

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