Skip to content
Dx

ICD-9-CM diagnosis code (retired)

646.83 — Other specified complications of pregnancy, antepartum 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 646.83

646.83 is an ICD-9-CM diagnosis code for other specified complications of pregnancy, antepartum 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 13 ICD-10-CM codes, such as O26.11 (Low weight gain in pregnancy, first trimester), O26.12 (Low weight gain in pregnancy, second trimester) and O26.13 (Low weight gain in pregnancy, third trimester). All of these are approximate matches, so review the record to pick the right one.

ICD-10-CM equivalents

Common questions about 646.83

What is the ICD-10 code for ICD-9 646.83?

The GEMs map 646.83 to ICD-10-CM O26.11, O26.12, O26.13, O26.41, O26.42, O26.43 and 7 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.