Suzie Smitz presents for admission due to threatened premature labor at 26 weeks. Contractions stopped after two hours, and she was confined to bed rest. No delivery occurred. Select the appropriate ICD-9-CM code(s)

644 Early or threatened labor

644.03 Threatened premature labor
Premature labor after 22 weeks, but before 37 completed weeks of gestation without delivery

644.13 Other threatened labor
False labor:
Not otherwise specified, without delivery
After 37 completed weeks of gestation, without delivery
Threatened labor, not otherwise specified, without delivery

644.23 Early onset of delivery
Onset (spontaneous) of delivery, before 37 completed weeks of gestation
Premature labor with onset of delivery, before 37 completed weeks of gestation
A) 644
B) 644.03
C) 644.13
D) 644.23

B