O43
⚠ Non-billable
Placental disorders
ICD-10-CM · FY2026 · Pregnancy, Childbirth and the Puerperium
Code
O43
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Pregnancy, Childbirth and the Puerperium
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Official coding notes
From CMS's ICD-10-CM Tabular List.
Excludes2 — not included here, but may code together
- 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?
ICD-10-CM code O43 represents Placental disorders. It is a non-billable header code requiring a more specific subcategory in the Pregnancy, Childbirth and the Puerperium chapter, effective October 1, 2025 – September 30, 2026.
Is O43 billable?
No. O43 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is O43 in?
O43 belongs to the Pregnancy, Childbirth and the Puerperium chapter (O00–O9A) of ICD-10-CM.
Related codes in the O43 category
O43.0
Placental transfusion syndromes
Non-billable
O43.1
Malformation of placenta
Non-billable
O43.2
Morbidly adherent placenta
Non-billable
O43.8
Other placental disorders
Non-billable
O43.01
Fetomaternal placental transfusion syndrome
Non-billable
O43.02
Fetus-to-fetus placental transfusion syndrome
Non-billable
O43.10
Malformation of placenta, unspecified
Non-billable
O43.11
Circumvallate placenta
Non-billable
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