Pregnancy, childbirth and the puerperium (O00-O9A)

Browse all the diagnosis codes used for pregnancy, childbirth and the puerperium (o00-o9a). For easy navigation, the diagnosis codes are sorted in alphabetical order and grouped by sections. Each section is clearly marked with its description, and the corresponding three-digit code range. This format makes it simple to browse diagnosis codes in this chapter or section and find what you're looking for. We've also added green checkmark icons to label billable codes, and red warning icons for non-billable ones. This makes it easy to identify which codes can be billed.
  • Pregnancy, childbirth and the puerperium (O00-O9A)

    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

    Use additional code from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.

    Excludes1: supervision of normal pregnancy (Z34.-)

    Excludes2: mental and behavioral disorders associated with the puerperium (F53), obstetrical tetanus (A34), postpartum necrosis of pituitary gland (E23.0), puerperal osteomalacia (M83.0)

    • Pregnancy with abortive outcome (O00-O08)

      • Ectopic pregnancy (O00)
      • Hydatidiform mole (O01)
      • Other abnormal products of conception (O02)
      • Spontaneous abortion (O03)
      • Complications following (induced) termination of pregnancy (O04)
      • Failed attempted termination of pregnancy (O07)
      • Complications following ectopic and molar pregnancy (O08)
    • Supervision of high risk pregnancy (O09)

      • Supervision of high risk pregnancy (O09)
    • Edema, proteinuria and hypertensive disorders in pregnancy, childbirth and the puerperium (O10-O16)

      • Pre-existing hypertension complicating pregnancy, childbirth and the puerperium (O10)
      • Pre-existing hypertension with pre-eclampsia (O11)
      • Gestational [pregnancy-induced] edema and proteinuria without hypertension (O12)
      • Gestational [pregnancy-induced] hypertension without significant proteinuria (O13)
      • Pre-eclampsia (O14)
      • Eclampsia (O15)
      • Unspecified maternal hypertension (O16)
    • Other maternal disorders predominantly related to pregnancy (O20-O29)

      • Hemorrhage in early pregnancy (O20)
      • Excessive vomiting in pregnancy (O21)
      • Venous complications and hemorrhoids in pregnancy (O22)
      • Infections of genitourinary tract in pregnancy (O23)
      • Diabetes mellitus in pregnancy, childbirth, and the puerperium (O24)
      • Malnutrition in pregnancy, childbirth and the puerperium (O25)
      • Maternal care for other conditions predominantly related to pregnancy (O26)
      • Abnormal findings on antenatal screening of mother (O28)
      • Complications of anesthesia during pregnancy (O29)
    • Maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)

      • Multiple gestation (O30)
      • Complications specific to multiple gestation (O31)
      • Maternal care for malpresentation of fetus (O32)
      • Maternal care for disproportion (O33)
      • Maternal care for abnormality of pelvic organs (O34)
      • Maternal care for known or suspected fetal abnormality and damage (O35)
      • Maternal care for other fetal problems (O36)
      • Polyhydramnios (O40)
      • Other disorders of amniotic fluid and membranes (O41)
      • Premature rupture of membranes (O42)
      • Placental disorders (O43)
      • Placenta previa (O44)
      • Premature separation of placenta [abruptio placentae] (O45)
      • Antepartum hemorrhage, not elsewhere classified (O46)
      • False labor (O47)
      • Late pregnancy (O48)
    • Complications of labor and delivery (O60-O77)

      • Preterm labor (O60)
      • Failed induction of labor (O61)
      • Abnormalities of forces of labor (O62)
      • Long labor (O63)
      • Obstructed labor due to malposition and malpresentation of fetus (O64)
      • Obstructed labor due to maternal pelvic abnormality (O65)
      • Other obstructed labor (O66)
      • Labor and delivery complicated by intrapartum hemorrhage, not elsewhere classified (O67)
      • Labor and delivery complicated by abnormality of fetal acid-base balance (O68)
      • Labor and delivery complicated by umbilical cord complications (O69)
      • Perineal laceration during delivery (O70)
      • Other obstetric trauma (O71)
      • Postpartum hemorrhage (O72)
      • Retained placenta and membranes, without hemorrhage (O73)
      • Complications of anesthesia during labor and delivery (O74)
      • Other complications of labor and delivery, not elsewhere classified (O75)
      • Abnormality in fetal heart rate and rhythm complicating labor and delivery (O76)
      • Other fetal stress complicating labor and delivery (O77)
    • Encounter for delivery (O80-O82)

      • Encounter for full-term uncomplicated delivery (O80)
      • Encounter for cesarean delivery without indication (O82)
    • Complications predominantly related to the puerperium (O85-O92)

      • Puerperal sepsis (O85)
      • Other puerperal infections (O86)
      • Venous complications and hemorrhoids in the puerperium (O87)
      • Obstetric embolism (O88)
      • Complications of anesthesia during the puerperium (O89)
      • Complications of the puerperium, not elsewhere classified (O90)
      • Infections of breast associated with pregnancy, the puerperium and lactation (O91)
      • Other disorders of breast and disorders of lactation associated with pregnancy and the puerperium (O92)
    • Other obstetric conditions, not elsewhere classified (O94-O9A)

      • Sequelae of complication of pregnancy, childbirth, and the puerperium (O94)
      • Maternal infectious and parasitic diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium (O98)
      • Other maternal diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium (O99)
      • Maternal malignant neoplasms, traumatic injuries and abuse classifiable elsewhere but complicating pregnancy, childbirth and the puerperium (O9A)