Is O46 a billable ICD-10-CM code?

No. O46 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does O46 sit in the tabular list?

Pregnancy, childbirth and the puerperium (O00-O9A), in the block Maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48).

What cannot be coded together with O46?

O46 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter.

O46

O46 — Antepartum hemorrhage, not elsewhere classified

Non-billable headerICD-10-CM

O46 is a non-billable header ICD-10-CM code for antepartum hemorrhage, not elsewhere classified. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

hemorrhage in early pregnancy (O20.-)
intrapartum hemorrhage NEC (O67.-)
placenta previa (O44.-)
premature separation of placenta [abruptio placentae] (O45.-)

Other codes that can never be billed with O46

These codes carry an Excludes1 note pointing at O46. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading O46 alone.

O67Labor and delivery complicated by intrapartum hemorrhage, not elsewhere classified
D65Disseminated intravascular coagulation [defibrination syndrome]
O99.1Other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating pregnancy, childbirth and the puerperium

Risk adjustment

O46 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Code history

O46 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Code to one of these instead O46

3 child codes. Green means billable.

Questions about O46

Is O46 a billable ICD-10-CM code?: No. O46 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does O46 sit in the tabular list?: Pregnancy, childbirth and the puerperium (O00-O9A), in the block Maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48).
What cannot be coded together with O46?: O46 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter.