Kodex O01.9

Hierarchy

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

O01.9

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

chorioadenoma (destruens) (D39.2)
- D39.2 Neoplasm of uncertain behavior of placenta
malignant hydatidiform mole (D39.2)
- D39.2 Neoplasm of uncertain behavior of placenta

continuing pregnancy in multiple gestation after abortion of one fetus or more (O31.1-, O31.3-)
- O31.1 Continuing pregnancy after spontaneous abortion of one fetus or more
- O31.3 Continuing pregnancy after elective fetal reduction of one fetus or more

supervision of normal pregnancy (Z34.-)
- Z34 Encounter for supervision of normal pregnancy

mental and behavioral disorders associated with the puerperium (F53.-)
- F53 Mental and behavioral disorders associated with the puerperium, not elsewhere classified
A34 Obstetrical tetanus
postpartum necrosis of pituitary gland (E23.0)
- E23.0 Hypopituitarism
M83.0 Puerperal osteomalacia