2027 ICD-10-CM Diagnosis Code O45Premature separation of placenta [abruptio placentae]

ICD-10-CM Codes›O00-O9A›O30-O48›O45

ICD-10-CM O45
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

O45 is a non-billable ICD-10-CM category code for premature separation of placenta [abruptio placentae], so it cannot be submitted on claims. Use a more specific code from this category instead, such as O45.001, O45.002, O45.003, and O45.009.

Code Identity

ICD-10-CM Code
O45
Billable Status
No — Non-Billable Category
Code Describes
Premature separation of placenta [abruptio placentae]
Short Description
Premature separation of placenta [abruptio placentae]
Same as the full description in the CMS dataset.
Chapter
O30-O48
Maternal care related to the fetus and amniotic cavity and possible delivery problems

Code Classification

ChapterO00-O9APregnancy, childbirth and the puerperium
SectionO30-O48Maternal care related to the fetus and amniotic cavity and possible delivery problems
CategoryO45Premature separation of placenta [abruptio placentae]
This CodeO45Premature separation of placenta [abruptio placentae]

Specific Coding for Premature separation of placenta [abruptio placentae]Overview

Non-specific codes like O45 require more characters. Use one of these billable codes instead:

  • O45.0 for Premature separation of placenta with coagulation defect

  • O45.00 for Premature separation of placenta with coagulation defect, unspecified

  • O45.01 for Premature separation of placenta with afibrinogenemia

  • O45.02 for Premature separation of placenta with disseminated intravascular coagulation

  • O45.09 for Premature separation of placenta with other coagulation defect

  • O45.8 for Other premature separation of placenta

  • O45.8X for Other premature separation of placenta

  • O45.9 for Premature separation of placenta, unspecified

  • Use O45.90 for Premature separation of placenta, unspecified, unspecified trimester

  • Use O45.91 for Premature separation of placenta, unspecified, first trimester

  • Use O45.92 for Premature separation of placenta, unspecified, second trimester

  • Use O45.93 for Premature separation of placenta, unspecified, third trimester

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to O45: its own notes plus those printed at Chapter 15. A note printed at a category, block or chapter applies to every code under it.

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

From Chapter 15 (O00-O9A) Pregnancy, childbirth and the puerperium applies to 2,481 codes
  • supervision of normal pregnancy (Z34.-)

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Chapter 15 (O00-O9A) Pregnancy, childbirth and the puerperium applies to 2,481 codes
  • 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

Add a second code, after this one, to fully describe the condition.

From Chapter 15 (O00-O9A) Pregnancy, childbirth and the puerperium applies to 2,481 codes
  • code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.

Notes

General instructions on how these codes are used.

From Chapter 15 (O00-O9A) Pregnancy, childbirth and the puerperium applies to 2,481 codes
  • CODES FROM THIS CHAPTER ARE FOR USE ONLY ON MATERNAL RECORDS, NEVER ON NEWBORN RECORDS
  • Codes from this chapter are for use for conditions related to or aggravated by the pregnancy, childbirth, or by the puerperium (maternal causes or obstetric causes)
  • Trimesters are counted from the first day of the last menstrual period. They are defined as follows:
  • 1st trimester- less than 14 weeks 0 days
  • 2nd trimester- 14 weeks 0 days to less than 28 weeks 0 days
  • 3rd trimester- 28 weeks 0 days until delivery

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name O45, its category, or a range that includes it.

Excludes1 3

These codes carry an Excludes1 note naming O45: they are not reported together with it, unless the two conditions are unrelated.

  • O46 Antepartum hemorrhage, not elsewhere classified
    premature separation of placenta [abruptio placentae] (O45.-)
  • O67 Labor and delivery complicated by intrapartum hemorrhage, not elsewhere classified
    premature separation of placenta [abruptio placentae] (O45.-)
  • O99.1 Other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating pregnancy, childbirth and the puerperium
    hemorrhage with coagulation defects (O45.-, O46.0-, O67.0, O72.3)

Excludes2 1

These codes carry an Excludes2 note naming O45: its condition is not part of those codes, and both may be reported when the patient has both.

  • O43 Placental disorders
    premature separation of placenta [abruptio placentae] (O45.-)

Clinical InformationClinical

  • Placental Abruption

    placental separation from the uterus with bleeding (concealed or vaginal) before fetal birth, with or without maternal/fetal compromise. (revitalize)

Patient EducationClinical

Childbirth Problems

Childbirth is the process of giving birth to a baby. It includes labor and delivery. Usually everything goes well, but problems can happen. They may cause a risk to the mother, baby, or both. Some of the more common childbirth problems include:

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About O45Overview

What is the ICD-10 code for premature separation of placenta [abruptio placentae]?

O45 is the ICD-10-CM category for premature separation of placenta [abruptio placentae], but it is a non-billable header: claims need a more specific code from this category, listed on this page.

Is O45 (Premature separation of placenta [abruptio placentae]) a billable code?

No. This is a category header that groups the codes for premature separation of placenta [abruptio placentae], and headers cannot be submitted on claims. Claims for premature separation of placenta [abruptio placentae] need a more specific code from this category, such as O45.001, O45.002, and O45.003.