O42.90
O42.90 — Premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, unspecified weeks of gestation
Billable / specific codeICD-10-CM
O42.90 is a billable, specific ICD-10-CM code for premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, unspecified weeks of gestation. It is valid for submission on a claim.
Risk adjustment
O42.90 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
How O42.90 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to O42.90.
- Pregnancy›complicated by›hydrorrhea
- Pregnancy›complicated by›premature rupture of membranes
- Delivery›complicated›by›premature rupture, membranes
Related codes at this level
Codes that share O42.9. If O42.90 is not quite right, the correct code is usually one of these.
Questions about O42.90
- Is O42.90 a billable ICD-10-CM code?
- Yes. O42.90 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does O42.90 sit in the tabular list?
- Pregnancy, childbirth and the puerperium (O00-O9A), in the block Maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48).