Is O43.211 a billable ICD-10-CM code?

Yes. O43.211 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does O43.211 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 O43.211?

O43.211 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above O43.211 (O43.2) and apply to it just the same.

O43.211

O43.211 — Placenta accreta, first trimester

Billable / specific codeICD-10-CM

O43.211 is a billable, specific ICD-10-CM code for placenta accreta, first trimester. It is valid for submission on a claim.

Excludes1 inherited from the categories above O43.211

These are not written on O43.211, but they bind it: a note on a category applies to every code beneath it. Billing O43.211 with anything listed here is a denial.

Written on O43.2 — Morbidly adherent placenta

retained placenta (O73.-)

Excludes2 inherited from the categories above O43.211

Also inherited, and the opposite of Excludes1: these conditions are not part of O43.211, but a patient can have both, so you may code both.

Written on O43 — Placental disorders

maternal care for poor fetal growth due to placental insufficiency (O36.5-)
placenta previa (O44.-)
placental polyp (O90.89)
placentitis (O41.14-)
premature separation of placenta [abruptio placentae] (O45.-)

Risk adjustment

O43.211 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

O43.211 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Related codes at this level

Codes that share O43.21. If O43.211 is not quite right, the correct code is usually one of these.

Questions about O43.211

Is O43.211 a billable ICD-10-CM code?: Yes. O43.211 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does O43.211 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 O43.211?: O43.211 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above O43.211 (O43.2) and apply to it just the same.