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ICD-10 diagnosis code

O43.1 Malformation of placenta

This page in Swedish

O43.1 is the ICD-10 code for Malformation of placenta. It is a four-character subcategory of O43 (Placental disorders), the most specific level in the WHO edition. It belongs to the block O30–O48 (Maternal care related to the fetus and amniotic cavity and possible delivery problems) in Chapter XV, Pregnancy, childbirth and the puerperium.

Code type
Subcategory (4 characters)
Chapter
XV · O00–O99
Classification
WHO ICD-10, 2019 version

What O43.1 includes

Conditions and terms that are coded here.

  • Abnormal placenta NOS
  • Circumvallate placenta

O43.1 in national editions

Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.

SwedenICD-10-SE

O43.1Missbildning av placenta

NorwayICD-10-NO

O43.1Misdannelse av morkake

DenmarkICD-10-DK

DO431Placenta-anomali

  • DO431ACircumvallat placenta
  • DO431CPlacenta med biplacenta
  • DO431EVasa Prævia
  • DO431FVelamentøs insertion af navlesnoren
FinlandICD-10-FI

O43.1Istukan epämuodostuma

GermanyICD-10-GM

O43.1Fehlbildung der Plazenta

FranceICD-10-FR

O43.1Malformation du placenta

NetherlandsICD-10-NL

O43.1misvorming van placenta

United StatesICD-10-CM

Listed through more specific codes:

  • O43.101Malformation of placenta, unspecified, first trimester
  • O43.102Malformation of placenta, unspecified, second trimester
  • O43.103Malformation of placenta, unspecified, third trimester
  • O43.109Malformation of placenta, unspecified, unspecified trimester
  • O43.111Circumvallate placenta, first trimester
  • O43.112Circumvallate placenta, second trimester
  • O43.113Circumvallate placenta, third trimester
  • O43.119Circumvallate placenta, unspecified trimester
  • and 8 more national subcodes

Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.

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