656.50 — Poor fetal growth, affecting management of mother, unspecified as to episode of care or not applicable

656.50 is an ICD-9-CM diagnosis code for poor fetal growth, affecting management of mother, unspecified as to episode of care or not applicable. 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 2 ICD-10-CM codes, such as O36.5190 (Maternal care for known or suspected placental insufficiency, unspecified trimester, not applicable or unspecified) and O36.5990 (Maternal care for other known or suspected poor fetal growth, unspecified trimester, not applicable or unspecified). All of these are approximate matches, so review the record to pick the right one.