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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  • O99.519—

    Diseases of the respiratory system complicating pregnancy, unspecified trimester

  • O99.52—

    Diseases of the respiratory system complicating childbirth

  • O99.53—

    Diseases of the respiratory system complicating the puerperium

  • O99.611—

    Diseases of the digestive system complicating pregnancy, first trimester

  • O99.612—

    Diseases of the digestive system complicating pregnancy, second trimester

  • O99.613—

    Diseases of the digestive system complicating pregnancy, third trimester

  • O99.619—

    Diseases of the digestive system complicating pregnancy, unspecified trimester

  • O99.62—

    Diseases of the digestive system complicating childbirth

  • O99.63—

    Diseases of the digestive system complicating the puerperium

  • O99.711—

    Diseases of the skin and subcutaneous tissue complicating pregnancy, first trimester

  • O99.712—

    Diseases of the skin and subcutaneous tissue complicating pregnancy, second trimester

  • O99.713—

    Diseases of the skin and subcutaneous tissue complicating pregnancy, third trimester

  • O99.719—

    Diseases of the skin and subcutaneous tissue complicating pregnancy, unspecified trimester

  • O99.72—

    Diseases of the skin and subcutaneous tissue complicating childbirth

  • O99.73—

    Diseases of the skin and subcutaneous tissue complicating the puerperium

  • O99.810—

    Abnormal glucose complicating pregnancy

  • O99.814—

    Abnormal glucose complicating childbirth

  • O99.815—

    Abnormal glucose complicating the puerperium

  • O99.820—

    Streptococcus B carrier state complicating pregnancy

  • O99.824—

    Streptococcus B carrier state complicating childbirth

  • O99.825—

    Streptococcus B carrier state complicating the puerperium

  • O99.830—

    Other infection carrier state complicating pregnancy

  • O99.834—

    Other infection carrier state complicating childbirth

  • O99.835—

    Other infection carrier state complicating the puerperium

  • O99.840—

    Bariatric surgery status complicating pregnancy, unspecified trimester

  • O99.841—

    Bariatric surgery status complicating pregnancy, first trimester

  • O99.842—

    Bariatric surgery status complicating pregnancy, second trimester

  • O99.843—

    Bariatric surgery status complicating pregnancy, third trimester

  • O99.844—

    Bariatric surgery status complicating childbirth

  • O99.845—

    Bariatric surgery status complicating the puerperium

  • O99.891—

    Other specified diseases and conditions complicating pregnancy

  • O99.892—

    Other specified diseases and conditions complicating childbirth

  • O99.893—

    Other specified diseases and conditions complicating puerperium

  • O9A.111—

    Malignant neoplasm complicating pregnancy, first trimester

  • O9A.112—

    Malignant neoplasm complicating pregnancy, second trimester

  • O9A.113—

    Malignant neoplasm complicating pregnancy, third trimester

  • O9A.119—

    Malignant neoplasm complicating pregnancy, unspecified trimester

  • O9A.12—

    Malignant neoplasm complicating childbirth

  • O9A.13—

    Malignant neoplasm complicating the puerperium

  • O9A.211—

    Injury, poisoning and certain other consequences of external causes complicating pregnancy, first trimester

  • O9A.212—

    Injury, poisoning and certain other consequences of external causes complicating pregnancy, second trimester

  • O9A.213—

    Injury, poisoning and certain other consequences of external causes complicating pregnancy, third trimester

  • O9A.219—

    Injury, poisoning and certain other consequences of external causes complicating pregnancy, unspecified trimester

  • O9A.22—

    Injury, poisoning and certain other consequences of external causes complicating childbirth

  • O9A.23—

    Injury, poisoning and certain other consequences of external causes complicating the puerperium

  • O9A.311—

    Physical abuse complicating pregnancy, first trimester

  • O9A.312—

    Physical abuse complicating pregnancy, second trimester

  • O9A.313—

    Physical abuse complicating pregnancy, third trimester

  • O9A.319—

    Physical abuse complicating pregnancy, unspecified trimester

  • O9A.32—

    Physical abuse complicating childbirth

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