Wiki ICD-10 O code questions

[jrhinelander]

This may be a silly question, but I am fairly new to OB coding, and sometimes I wonder about code usage with deliveries. Specifically these two codes:

O42.013
Preterm premature rupture of membranes, onset of labor within 24 hours of rupture, third trimester
O42.02
Full-term premature rupture of membranes, onset of labor within 24 hours of rupture

Is there an actual week that separates preterm from Full-term? Also, if the Full-term one is actual full term as in 39 weeks, why would it still be a "premature rupture"?

Also, if it is a single baby, on the O codes that have you specify which fetus it is (like O36.59), do you end with a 0 for not applicable or unspecified, or a 1? The book says to use 0, but Medicaid doesn't tend to like it because it is unspecified.

Thank you,
Joe

 

[Palmtoptiger]

Hi,

Pre term = before 37 completed weeks of gestation
Full term = after 37 completed weeks of gestation

Premature rupture of membrane could happen even at full term if the amniotic sac breaks and the labor has not yet started.


Thanks,

 

[Palmtoptiger]

O36.59- example

For single gestation, you will need to choose "0" for Not Applicable

For multiple gestation, if the fetus is unspecified, choose "0" but if the fetus is specified choose from 1-5 or 9.