ICD-9-CM diagnosis code (retired)
656.63 — Excessive fetal growth, affecting management of mother, antepartum condition or complication
About ICD-9-CM 656.63
656.63 is an ICD-9-CM diagnosis code for excessive fetal growth, affecting management of mother, 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 3 ICD-10-CM codes, such as O36.61X0 (Maternal care for excessive fetal growth, first trimester, not applicable or unspecified), O36.62X0 (Maternal care for excessive fetal growth, second trimester, not applicable or unspecified) and O36.63X0 (Maternal care for excessive fetal growth, third trimester, not applicable or unspecified). All of these are approximate matches, so review the record to pick the right one.
ICD-10-CM equivalents
- O36.61X0Maternal care for excessive fetal growth, first trimester, not applicable or unspecifiedapproximate
- O36.62X0Maternal care for excessive fetal growth, second trimester, not applicable or unspecifiedapproximate
- O36.63X0Maternal care for excessive fetal growth, third trimester, not applicable or unspecifiedapproximate
Common questions about 656.63
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.