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U.S. ICD-10-CM · April 2026

O43 ICD-10-CM Code: Placental disorders

A clear reference for the official code description, hierarchy, and related coding information from the April 2026 U.S. release.

Code definition

Official description

O43

Placental disorders

ICD-10-CM diagnosis code · United States clinical modification

Classification

Where O43 sits

  1. 1

    Chapter 15

    Pregnancy, childbirth and the puerperium (O00-O9A)

  2. 2

    Section

    Maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)

  3. 3

    Category O43

    Placental disorders

  4. 4

    Code O43

    Placental disorders

More specific choices

Codes under O43

O43 is a non-billable category. Choose the child code that best matches the documented diagnosis.

Documentation details

Notes for this code

Inclusion terms

No inclusion terms are listed for O43.

Code first

No “code first” instruction is listed for O43.

Use additional code

No “use additional code” instruction is listed for O43.

Excludes1

Conditions that should not be reported together with this code.

No Excludes1 note is listed for O43.

Excludes2

Conditions not included here that may be reported separately when present.

  • 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.-)

Transparency

Source and release

Data release

U.S. ICD-10-CM · April 2026

Effective date

Apr 1, 2026

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code O43 mean?

O43 is the April 2026 U.S. ICD-10-CM code for “Placental disorders.”

Is O43 a billable or specific ICD-10-CM code?

No. O43 has more specific child codes in the April 2026 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.

Where is O43 located in ICD-10-CM?

O43 is listed in Chapter 15, Pregnancy, childbirth and the puerperium (O00-O9A), within Maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48) (O30–O48), under category O43, Placental disorders.

What coding notes are listed for O43?

No inclusion terms are listed for O43 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. Excludes2 notes: 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.-).

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