2026 ICD-10-CM Diagnosis Code O44.00Complete placenta previa NOS or without hemorrhage, unspecified trimester

ICD-10-CM Codes›O00-O9A›O30-O48›O44

ICD-10-CM O44.00
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

O44.00 is a billable ICD-10-CM diagnosis code for complete placenta previa NOS or without hemorrhage, unspecified trimester. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 817 through 819, 831 through 833. The code is restricted by the Medicare Code Editor to maternity cases (age 9 through 64). Coders also document this condition as placenta previa. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Maternal care related to disorders of the placenta and placental implantation.

Code Identity

ICD-10-CM Code
O44.00
Billable Status
Yes — Valid for Submission
Code Describes
Complete placenta previa NOS or without hemorrhage, unspecified trimester
Short Description
Complete placenta previa NOS or without hemor, unsp tri
Parent Code
O44.0
Complete placenta previa NOS or without hemorrhage

Code Classification

ChapterO00-O9APregnancy, childbirth and the puerperium
SectionO30-O48Maternal care related to the fetus and amniotic cavity and possible delivery problems
CategoryO44Placenta previa
This CodeO44.00Complete placenta previa NOS or without hemorrhage, unspecified trimester

Code EditsBilling

Medicare Code Editor checks that affect claim validity for O44.00.

Maternity diagnoses
The Medicare Code Editor detects inconsistencies in maternity cases by checking a patient's age and any diagnosis on the patient's record. The maternity code edits apply to patients age ange is 9–64 years inclusive (e.g., diabetes in pregnancy, antepartum pulmonary complication).

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Placenta previa
  • Placenta previa centralis
  • Placenta previa without hemorrhage
  • Postpartum hemorrhage
  • Postpartum hemorrhage due to total placenta previa

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR PRG018
Maternal care related to disorders of the placenta and placental implantation
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Placenta Previa

    abnormal placentation in which the placenta implants in the lower segment of the uterus (the zone of dilation) and may cover part or all of the opening of the cervix. it is often associated with serious antepartum bleeding and premature labor.

  • Postpartum Hemorrhage

    excess blood loss from uterine bleeding associated with obstetric labor or childbirth. it is defined as blood loss greater than 500 ml or of the amount that adversely affects the maternal physiology, such as blood pressure and hematocrit. postpartum hemorrhage is divided into two categories, immediate (within first 24 hours after birth) or delayed (after 24 hours postpartum).

  • GAIA Level 1 Placenta Previa|Global Alignment of Immunization safety Assessment in pregnancy Level 1 Placenta Previa|Level 1 Placenta Previa

    gaia level 1 placenta previa is defined by a second or third trimester ultrasound (and/or mri) that demonstrates evidence of placental tissue overlying or abutting the internal cervical os.

  • GAIA Level 2 Placenta Previa|Global Alignment of Immunization safety Assessment in pregnancy Level 2 Placenta Previa|Level 2 Placenta Previa

    gaia level 2 placenta previa is defined by three criteria: first, painless vaginal bleeding during the second or third trimester; second, a high presenting part or abnormal fetal lie; third, pelvic exam with fullness palpable in the fornices (avoiding digital cervical exam) or a speculum exam with placental tissue visible through an open cervical os.

  • Placenta Previa

    a condition in which the placenta covers or is within 1 cm of the cervical os.

  • Early Postpartum Hemorrhage|Primary Postpartum Hemorrhage|Primary Postpartum Hemorrhage

    cumulative blood loss of greater than or equal to 1000 ml or blood loss accompanied by signs or symptoms of hypovolemia within 24 hours following the birth process (includes intrapartum loss). (revitalize)

  • GAIA Level 1 Postpartum Hemorrhage|Global Alignment of Immunization safety Assessment in pregnancy Level 1 Postpartum Hemorrhage|Level 1 Postpartum Haemorrhage

    gaia level 1 postpartum hemorrhage is the presence of genital bleeding after delivery, leading to severe maternal outcome (maternal death or maternal near miss) as defined by who.

  • GAIA Level 2 Postpartum Hemorrhage|Global Alignment of Immunization safety Assessment in pregnancy Level 2 Postpartum Hemorrhage|Level 2 Postpartum Haemorrhage

    gaia level 2 postpartum hemorrhage is defined by the presence of the following criteria: genital bleeding after delivery with at least one of the following: a) measured abnormal bleeding (1000ml or more); or b) any bleeding leading to hypotension or blood transfusion.

  • GAIA Level 3 Postpartum Hemorrhage|Global Alignment of Immunization safety Assessment in pregnancy Level 3 Postpartum Hemorrhage|Level 3 Postpartum Haemorrhage

    gaia level 3 postpartum hemorrhage is defined by the presence of genital bleeding after delivery that is estimated at 1000ml or more.

  • GAIA Postpartum Hemorrhage Level of Diagnostic Certainty Terminology|Global Alignment of Immunization safety Assessment in pregnancy Postpartum Hemorrhage Level of Diagnostic Certainty Terminology

    a subset of terminology related to postpartum hemorrhage, developed by the global alignment of immunization safety assessment in pregnancy consortium to aid in monitoring and improving fetal and maternal outcomes.

  • GAIA Postpartum Hemorrhage Level of Diagnostic Certainty|Global Alignment of Immunization safety Assessment in pregnancy Postpartum Hemorrhage Level of Diagnostic Certainty|Postpartum Hemorrhage Level of Diagnostic Certainty

    a classification of maternal and fetal outcomes relating to postpartum hemorrhage, developed by the global alignment of immunization safety assessment in pregnancy, based on the extent to which the diagnosis has been confirmed.

  • Late Postpartum Hemorrhage|Delayed Postpartum Hemorrhage|Delayed Postpartum Hemorrhage|Secondary Postpartum Hemorrhage|Secondary Postpartum Hemorrhage

    excessive blood loss between 24 hours after delivery through four weeks that requires intervention.

  • Postpartum Hemorrhage

    hemorrhage defined as a blood loss in excess of 500 ml after vaginal delivery or more than 1000 ml after a cesarean delivery.

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.

Convert O44.00 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
641.00 Placenta previa-unspec
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About O44.00Overview

Is O44.00 (Complete placenta previa NOS or without hemorrhage) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report complete placenta previa NOS or without hemorrhage, unspecified trimester on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does O44.00 group to?

When complete placenta previa NOS or without hemorrhage, unspecified trimester is the principal diagnosis on an inpatient stay, it groups to MS-DRG 817, 818, 819, 831, 832, 833, with relative weights from 0.5229 to 1.6880 depending on complications. Higher weights mean higher Medicare reimbursement.

Who can O44.00 be reported for?

The Medicare Code Editor checks complete placenta previa NOS or without hemorrhage, unspecified trimester against patient demographics: this code is intended for maternity cases (age 9 through 64). Claims outside these limits are flagged as inconsistent.

What is the ICD-9 equivalent of O44.00?

Under the General Equivalence Mappings, complete placenta previa NOS or without hemorrhage, unspecified trimester converts to ICD-9-CM 641.00 (placenta previa-unspec). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.