648 Other current conditions in the mother classifiable elsewhere, but complicating pregnancy, childbirth, or the puerperium
Use additional code(s) to identify the condition
Requires fifth digit; valid digits are in [brackets] under each code. See beginning of section 640-649 for definitions.
the listed conditions when complicating the pregnant state, aggravated by the pregnancy, or when a main reason for obstetric care
those conditions in the mother known or suspected to have affected the fetus (655.0-655.9)