O43

Non-Billable
ChapterO00–O9A
Rankcategory
Official Description

Placental disorders

Metadata & Insights
  • •2026 ICD-10-CM Edition - Effective October 1, 2025.
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 15: Pregnancy, Childbirth and the Puerperium (O00-O9A).

CH15 Parent Instructions

Excludes1(Not coded here)
  • supervision of normal pregnancy (Z34.-)
Excludes2(Not included here)
  • mental and behavioral disorders associated with the puerperium (F53.-)
  • obstetrical tetanus (A34)
  • postpartum necrosis of pituitary gland (E23.0)
  • puerperal osteomalacia (M83.0)
Use Additional Code
  • code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.

Instructional Notes

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.-)

Clinical Hierarchy

CH15Pregnancy, childbirth and the puerperium (O00-O9A)
O30-O48Maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)
O43Placental disorders
O43.0Placental transfusion syndromes
O43.1Malformation of placenta
O43.2Morbidly adherent placenta
O43.8Other placental disorders
O43.9Unspecified placental disorder

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to O43:

chapterCH15
Pregnancy, childbirth and the puerperium (O00-O9A)
View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to O43. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

25 raw paths
Accreta placenta1 unique routes
Direct index entry→O43
Battledore placenta1 unique routes
Direct index entry→O43
Circumvallate placenta1 unique routes
Direct index entry→O43
Cyst (colloid) (mucous) (simple) (retention)1 unique routes
placenta→O43
Delivery (childbirth) (labor)10 unique routes
cesarean (for)
fetal-maternal hemorrhage→O43
complicated(9 variants)
by(9 variants)
placenta, placental(8 variants)
abnormality→O43(2 variants)
specified NEC→O43
accreta→O43
disorder→O43(2 variants)
specified NEC→O43
increta→O43
malformation→O43
percreta→O43
velamentous insertion of cord→O43
Hematoma (traumatic) (skin surface intact)1 unique routes
placenta→O43
Increta placenta1 unique routes
Direct index entry→O43
Infarct, infarction1 unique routes
placenta→O43
Insertion1 unique routes
cord (umbilical) lateral or velamentous→O43
Membranacea placenta1 unique routes
Direct index entry→O43
Multipartita placenta1 unique routes
Direct index entry→O43
Percreta placenta1 unique routes
Direct index entry→O43
Pregnancy (single) (uterine)4 unique routes
complicated by (care of) (management affected by)(4 variants)
malformation(2 variants)
placenta, placental (vessel)→O43(2 variants)
specified NEC→O43
placenta accreta→O43
placenta increta→O43

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

Find Procedures (ICD-10-PCS)

Find surgical and procedural codes related to Placental disorders.

Search PCS Codes