ICD-10-CM Code For Placental Disorders: Group Overview

The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group O43 includes placental disorders such as placenta previa, placental insufficiency, and premature separation of the placenta that affect maternal and fetal health. These ICD-10-CM diagnosis codes are used to document clinical scenarios involving placental location, function, or separation, capturing disease severity, gestational timing, and associated complications relevant to this group. Accurate coding within the ICD-10-CM O43 group supports proper claim adjudication and complete clinical documentation for appropriate reimbursement.

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ICD-10-CM O43: Placental Disorders Overview

The ICD-10-CM O43 placental disorders group includes conditions affecting the placenta such as placenta previa, placental insufficiency, and placental separation. These diagnoses target the maternal-fetal interface and can impact fetal growth, maternal hemorrhage risk, and pregnancy outcomes. Accurate coding matters for reimbursement because it documents clinical complexity, guides appropriate claim adjudication, and supports care coordination.

When to Use

Use a code from this group when clinical documentation indicates a diagnosed placental condition such as placenta previa, placenta accreta spectrum, placental insufficiency, or placental abruption. Select the code that reflects the specific placental pathology, severity, and any documented complications or timing in pregnancy.

ICD-10-CM Codes

48 rows

ICD-10-CM Code	Description
O43.011	Fetomaternal placental transfusion syndrome, first trimester
O43.012	Fetomaternal placental transfusion syndrome, second trimester
O43.013	Fetomaternal placental transfusion syndrome, third trimester
O43.019	Fetomaternal placental transfusion syndrome, unspecified trimester
O43.021	Fetus-to-fetus placental transfusion syndrome, first trimester
O43.022	Fetus-to-fetus placental transfusion syndrome, second trimester
O43.023	Fetus-to-fetus placental transfusion syndrome, third trimester
O43.029	Fetus-to-fetus placental transfusion syndrome, unspecified trimester
O43.101	Malformation of placenta, unspecified, first trimester
O43.102	Malformation of placenta, unspecified, second trimester
O43.103	Malformation of placenta, unspecified, third trimester
O43.109	Malformation of placenta, unspecified, unspecified trimester
O43.111	Circumvallate placenta, first trimester
O43.112	Circumvallate placenta, second trimester
O43.113	Circumvallate placenta, third trimester
O43.119	Circumvallate placenta, unspecified trimester
O43.121	Velamentous insertion of umbilical cord, first trimester
O43.122	Velamentous insertion of umbilical cord, second trimester
O43.123	Velamentous insertion of umbilical cord, third trimester
O43.129	Velamentous insertion of umbilical cord, unspecified trimester

Showing 1–20 of 48

DRG Codes

8 rows

DRG Code	Description
769	Postpartum and Post Abortion Diagnoses with O.R. Procedures
776	Postpartum and Post Abortion Diagnoses without O.R. Procedures
817	Other Antepartum Diagnoses with O.R. Procedures with MCC
818	Other Antepartum Diagnoses with O.R. Procedures with CC
819	Other Antepartum Diagnoses with O.R. Procedures without CC/MCC
831	Other Antepartum Diagnoses without O.R. Procedures with MCC
832	Other Antepartum Diagnoses without O.R. Procedures with CC
833	Other Antepartum Diagnoses without O.R. Procedures without CC/MCC

Typical Clinical Scenarios

A pregnant woman at 28 weeks gestation presents to labor and delivery with sudden onset heavy vaginal bleeding and uterine tenderness after a history of hypertension in pregnancy. Ultrasound shows a retroplacental hematoma with partial placental separation and fetal heart rate tracing showing variable decelerations; she requires urgent stabilization and possible delivery. A placental separation disorder code is assigned to document the acute abruption causing maternal hemorrhage and potential fetal compromise. Typical codes: O43.211, O43.212
A patient in her third trimester with a previous cesarean delivery is evaluated during routine prenatal care for placenta previa suspected on ultrasound; she is otherwise stable but requires serial monitoring and delivery planning. Because the placenta overlies or is adjacent to the cervical os and may impact mode and timing of delivery, a placental location disorder code is used to capture this ongoing pregnancy complication and inform obstetric management. Typical codes: O43.113, O43.119
A woman presents to the emergency department postpartum with persistent uterine bleeding and signs of infection after a difficult vaginal delivery complicated by retained placental fragments identified on ultrasound. Management includes uterine evacuation and antibiotics; a code from this group is used to indicate retained placental tissue contributing to hemorrhage and infection as a complication of delivery. Typical codes: O43.891, O43.892}

Related Codes

O30-MULTIPLE-GESTATION-PREGNANCY

ICD-10-CM Code For Multiple Gestation: Group Overview

O31-COMPLICATIONS-SPECIFIC-TO-MULTIPLE-GESTATION

ICD-10-CM Code For Complications Specific To Multiple Gestation: Group Overview

O32-MALPRESENTATION-OF-FETUS

ICD-10-CM Code For Maternal Care For Malpresentation Of Fetus: Group Overview

O33-MATERNAL-CARE-FOR-DISPROPORTION

ICD-10-CM Code For Maternal Care For Disproportion: Group Overview

O34-ABNORMALITY-OF-PELVIC-ORGANS

ICD-10-CM Code For Maternal Care For Abnormality Of Pelvic Organs: Group Overview

O35-MATERNAL-CARE-FOR-FETAL-ABNORMALITY

ICD-10-CM Code For Maternal Care For Known Or Suspected Fetal Abnormality And Damage: Group Overview

O36-MATERNAL-CARE-OTHER-FETAL-PROBLEMS

ICD-10-CM Code For Maternal Care For Other Fetal Problems: Group Overview

O40-POLYHYDRAMNIOS

ICD-10-CM Code For Polyhydramnios: Group Overview

O41-OTHER-DISORDERS-OF-AMNIOTIC-FLUID

ICD-10-CM Code For Other Disorders Of Amniotic Fluid And Membranes: Group Overview

O42-PREMATURE-RUPTURE-OF-MEMBRANES

ICD-10-CM Code For Premature Rupture Of Membranes: Group Overview

Showing 1–10 of 15

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

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When to Use

ICD-10-CM Codes

48 rows

ICD-10-CM Code	Description
O43.011	Fetomaternal placental transfusion syndrome, first trimester
O43.012	Fetomaternal placental transfusion syndrome, second trimester
O43.013	Fetomaternal placental transfusion syndrome, third trimester
O43.019	Fetomaternal placental transfusion syndrome, unspecified trimester
O43.021	Fetus-to-fetus placental transfusion syndrome, first trimester
O43.022	Fetus-to-fetus placental transfusion syndrome, second trimester
O43.023	Fetus-to-fetus placental transfusion syndrome, third trimester
O43.029	Fetus-to-fetus placental transfusion syndrome, unspecified trimester
O43.101	Malformation of placenta, unspecified, first trimester
O43.102	Malformation of placenta, unspecified, second trimester
O43.103	Malformation of placenta, unspecified, third trimester
O43.109	Malformation of placenta, unspecified, unspecified trimester
O43.111	Circumvallate placenta, first trimester
O43.112	Circumvallate placenta, second trimester
O43.113	Circumvallate placenta, third trimester
O43.119	Circumvallate placenta, unspecified trimester
O43.121	Velamentous insertion of umbilical cord, first trimester
O43.122	Velamentous insertion of umbilical cord, second trimester
O43.123	Velamentous insertion of umbilical cord, third trimester
O43.129	Velamentous insertion of umbilical cord, unspecified trimester

Showing 1–20 of 48

DRG Codes

8 rows

DRG Code	Description
769	Postpartum and Post Abortion Diagnoses with O.R. Procedures
776	Postpartum and Post Abortion Diagnoses without O.R. Procedures
817	Other Antepartum Diagnoses with O.R. Procedures with MCC
818	Other Antepartum Diagnoses with O.R. Procedures with CC
819	Other Antepartum Diagnoses with O.R. Procedures without CC/MCC
831	Other Antepartum Diagnoses without O.R. Procedures with MCC
832	Other Antepartum Diagnoses without O.R. Procedures with CC
833	Other Antepartum Diagnoses without O.R. Procedures without CC/MCC

Typical Clinical Scenarios

A pregnant woman at 28 weeks gestation presents to labor and delivery with sudden onset heavy vaginal bleeding and uterine tenderness after a history of hypertension in pregnancy. Ultrasound shows a retroplacental hematoma with partial placental separation and fetal heart rate tracing showing variable decelerations; she requires urgent stabilization and possible delivery. A placental separation disorder code is assigned to document the acute abruption causing maternal hemorrhage and potential fetal compromise. Typical codes: O43.211, O43.212
A patient in her third trimester with a previous cesarean delivery is evaluated during routine prenatal care for placenta previa suspected on ultrasound; she is otherwise stable but requires serial monitoring and delivery planning. Because the placenta overlies or is adjacent to the cervical os and may impact mode and timing of delivery, a placental location disorder code is used to capture this ongoing pregnancy complication and inform obstetric management. Typical codes: O43.113, O43.119
A woman presents to the emergency department postpartum with persistent uterine bleeding and signs of infection after a difficult vaginal delivery complicated by retained placental fragments identified on ultrasound. Management includes uterine evacuation and antibiotics; a code from this group is used to indicate retained placental tissue contributing to hemorrhage and infection as a complication of delivery. Typical codes: O43.891, O43.892}

Related Codes

O30-MULTIPLE-GESTATION-PREGNANCY

ICD-10-CM Code For Multiple Gestation: Group Overview

O31-COMPLICATIONS-SPECIFIC-TO-MULTIPLE-GESTATION

ICD-10-CM Code For Complications Specific To Multiple Gestation: Group Overview

O32-MALPRESENTATION-OF-FETUS

ICD-10-CM Code For Maternal Care For Malpresentation Of Fetus: Group Overview

O33-MATERNAL-CARE-FOR-DISPROPORTION

ICD-10-CM Code For Maternal Care For Disproportion: Group Overview

O34-ABNORMALITY-OF-PELVIC-ORGANS

ICD-10-CM Code For Maternal Care For Abnormality Of Pelvic Organs: Group Overview

O35-MATERNAL-CARE-FOR-FETAL-ABNORMALITY

ICD-10-CM Code For Maternal Care For Known Or Suspected Fetal Abnormality And Damage: Group Overview

O36-MATERNAL-CARE-OTHER-FETAL-PROBLEMS

ICD-10-CM Code For Maternal Care For Other Fetal Problems: Group Overview

O40-POLYHYDRAMNIOS

ICD-10-CM Code For Polyhydramnios: Group Overview

O41-OTHER-DISORDERS-OF-AMNIOTIC-FLUID

ICD-10-CM Code For Other Disorders Of Amniotic Fluid And Membranes: Group Overview

O42-PREMATURE-RUPTURE-OF-MEMBRANES

ICD-10-CM Code For Premature Rupture Of Membranes: Group Overview

Showing 1–10 of 15

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

Published by

Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

ICD-10-CM Code For Placental Disorders: Group Overview

Sign up for ICD-10-CM Code For Placental Disorders: Group Overview policy alerts

ICD-10-CM O43: Placental Disorders Overview

ICD-10-CM Code For Placental Disorders: Group Overview

Sign up for ICD-10-CM Code For Placental Disorders: Group Overview policy alerts

ICD-10-CM O43: Placental Disorders Overview

When to Use

ICD-10-CM Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which conditions are included in the ICD-10-CM O43 placental disorders group?

How does the O43 code set capture timing of the placental disorder?

How should coders document conditions in the placenta accreta spectrum using O43 codes?

Which DRGs are related to O43 placental disorder diagnoses for reimbursement grouping?

What coding detail is important for accurate claim adjudication when using O43 codes?

References

When to Use

ICD-10-CM Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which conditions are included in the ICD-10-CM O43 placental disorders group?

How does the O43 code set capture timing of the placental disorder?

How should coders document conditions in the placenta accreta spectrum using O43 codes?

Which DRGs are related to O43 placental disorder diagnoses for reimbursement grouping?

What coding detail is important for accurate claim adjudication when using O43 codes?

References