O02.1

Missed abortion

Billable / specific

O02.1 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.

Inclusion terms

Early fetal death, before completion of 20 weeks of gestation, with retention of dead fetus

Note: CODES FROM THIS CHAPTER ARE FOR USE ONLY ON MATERNAL RECORDS, NEVER ON NEWBORN RECORDS
Note: Codes from this chapter are for use for conditions related to or aggravated by the pregnancy, childbirth, or by the puerperium (maternal causes or obstetric causes)
Note: Trimesters are counted from the first day of the last menstrual period. They are defined as follows:
Note: 1st trimester- less than 14 weeks 0 days
Note: 2nd trimester- 14 weeks 0 days to less than 28 weeks 0 days
Note: 3rd trimester- 28 weeks 0 days until delivery

Not coded here — never report together with this code.

failed induced abortion (O07.-)
fetal death (intrauterine) (late) (O36.4)
missed abortion with blighted ovum (O02.0)
missed abortion with hydatidiform mole (O01.-)
missed abortion with nonhydatidiform (O02.0)
missed abortion with other abnormal products of conception (O02.8-)
missed delivery (O36.4)
stillbirth (P95)
supervision of normal pregnancy (Z34.-) (from O02)
continuing pregnancy in multiple gestation after abortion of one fetus or more (O31.1-, O31.3-) (from O02)
papyraceous fetus (O31.0-) (from O02)

Not included here — may be reported together when both conditions exist.

mental and behavioral disorders associated with the puerperium (F53.-) (from O02)
obstetrical tetanus (A34) (from O02)
postpartum necrosis of pituitary gland (E23.0) (from O02)
puerperal osteomalacia (M83.0) (from O02)

Add a code to identify the following, if applicable.

code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known. (from O02)
code from category O08 to identify any associated complication. (from O02)

Early fetal death, before completion of 20 weeks of gestation, with retention of dead fetus
Abortion, missed
Dead, fetus, retained, early pregnancy
Delivery, complicated, by intrauterine fetal death, early
Missed, abortion
Pregnancy, complicated by, death of fetus, early pregnancy
Pregnancy, complicated by, intrauterine fetal death, early pregnancy
Pregnancy, complicated by, missed, abortion
Retention, dead, fetus, early fetal death
Retention, fetus, dead, early
Retention, products of conception, early pregnancy