Maternal care for disproportion due to unusually large fetus, fetus 5

supervision of normal pregnancy (Z34.-)

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

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

• 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

the listed conditions as a reason for observation, hospitalization or other obstetric care of the mother, or for cesarean delivery before onset of labor

disproportion with obstructed labor (O65-O66)

• Maternal care for disproportion due to disproportion of fetal origin with normally formed fetus
• Maternal care for disproportion due to fetal disproportion NOS

One of the following 7th characters is to be assigned to code O33.5. 7th character 0 is for single gestations and multiple gestations where the fetus is unspecified. 7th characters 1 through 9 are for cases of multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30, Multiple gestation, must also be assigned when assigning code O33.5 with a 7th character of 1 through 9.