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ICD-9-CM diagnosis code (retired)

666.04 — Third-stage postpartum hemorrhage, postpartum condition or complication

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 666.04

666.04 is an ICD-9-CM diagnosis code for Third-stage postpartum hemorrhage, postpartum condition or complication. 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 11 ICD-10-CM codes, such as O43.211 (Placenta accreta, first trimester), O43.212 (Placenta accreta, second trimester) and O43.213 (Placenta accreta, third trimester). All of these are approximate matches, so review the record to pick the right one. Some mappings are combinations: more than one ICD-10 code is needed to fully express the ICD-9 code.

ICD-10-CM equivalents

Common questions about 666.04

What is the ICD-10 code for ICD-9 666.04?

The GEMs map 666.04 to ICD-10-CM O43.211, O43.212, O43.213, O43.221, O43.222, O43.223 and 5 more.

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.