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ICD-9-CM diagnosis code (retired)

668.91 — Unspecified complication of anesthesia and 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 668.91

668.91 is an ICD-9-CM diagnosis code for unspecified complication of anesthesia and 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, O74.9 (Complication of anesthesia during labor and delivery, unspecified). The match is approximate, so confirm it against the record.

ICD-10-CM equivalents

Common questions about 668.91

What is the ICD-10 code for ICD-9 668.91?

The GEMs map 668.91 to ICD-10-CM O74.9.

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.