NPI Atlas

O43 – Placental disorders

ICD-10-CM 2027 diagnosis code · Maternal care related to the fetus and amniotic cavity and possible delivery problems

Non-billable header

ICD-10-CM code O43

Code: O43 (claims format: O43)
Description: Placental disorders
Billable: No – use a more specific code below
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 15. Pregnancy, childbirth and the puerperium (O00-O9A)
Block: O30-O48 Maternal care related to the fetus and amniotic cavity and possible delivery problems

Billable codes under O43

O43 is a header code and cannot be used on claims. Choose the most specific code:

O43.0 – Placental transfusion syndromesHeader (more codes below)
O43.1 – Malformation of placentaHeader (more codes below)
O43.2 – Morbidly adherent placentaHeader (more codes below)
O43.8 – Other placental disordersHeader (more codes below)
O43.9 – Unspecified placental disorderHeader (more codes below)

Notes for O43

Excludes2 (not included here):

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.-)

Frequently asked questions

What is ICD-10 code O43?

O43 is the ICD-10-CM code for placental disorders, in the block O30-O48 (Maternal care related to the fetus and amniotic cavity and possible delivery problems).

Is O43 a billable code?

No. O43 is a header code with more specific child codes; report one of the billable codes listed above.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.