ICD-9-CM diagnosis code (retired)
658.21 — Delayed delivery after spontaneous or unspecified rupture of membranes, delivered, with or without mention of antepartum condition
About ICD-9-CM 658.21
658.21 is an ICD-9-CM diagnosis code for delayed delivery after spontaneous or unspecified rupture of membranes, delivered, with or without mention of antepartum condition. ICD-9-CM was retired for U.S. claims on October 1, 2015, when ICD-10-CM took over.
The CMS General Equivalence Mappings translate it to 5 ICD-10-CM codes, such as O42.10 (Premature rupture of membranes, onset of labor more than 24 hours following rupture, unspecified weeks of gestation), O42.111 (Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture, first trimester) and O42.112 (Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture, second trimester). All of these are approximate matches, so review the record to pick the right one.
ICD-10-CM equivalents
- O42.10Premature rupture of membranes, onset of labor more than 24 hours following rupture, unspecified weeks of gestationapproximate
- O42.111Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture, first trimesterapproximate
- O42.112Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture, second trimesterapproximate
- O42.113Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture, third trimesterapproximate
- O42.12Full-term premature rupture of membranes, onset of labor more than 24 hours following ruptureapproximate
Common questions about 658.21
GEMs are a translation aid, not a substitute for coding from the record. The 2027 ICD-10 code set has changed since the last GEMs release in 2018. Page updated September 29, 2026.