ICD-9-CM diagnosis code (retired)
668.21 — Central nervous system complications of anesthesia or other sedation in labor and delivery, delivered, with or without mention of antepartum condition
ICD-9-CM was replaced by ICD-10 on October 1, 2015. These are the ICD-10-CM equivalents from the CMS General Equivalence Mappings.
About ICD-9-CM 668.21
668.21 is an ICD-9-CM diagnosis code for central nervous system complications of anesthesia or other sedation in labor and delivery, 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 one ICD-10-CM code, O74.3 (Central nervous system complications of anesthesia during labor and delivery). The match is approximate, so confirm it against the record.
ICD-10-CM equivalents
- O74.3Central nervous system complications of anesthesia during labor and deliveryapproximate
Common questions about 668.21
What is the ICD-10 code for ICD-9 668.21?
- The GEMs map 668.21 to ICD-10-CM O74.3.
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.