2026 ICD-10-CM Diagnosis Code O44.41Low lying placenta NOS or without hemorrhage, first trimester

ICD-10-CM Codes›O00-O9A›O30-O48›O44

ICD-10-CM O44.41
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

O44.41 is a billable ICD-10-CM diagnosis code for low lying placenta NOS or without hemorrhage, first 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). 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
O44.41
Billable Status
Yes — Valid for Submission
Code Describes
Low lying placenta NOS or without hemorrhage, first trimester
Short Description
Low lying placenta NOS or without hemor, first trimester
Parent Code
O44.4
Low lying placenta 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 CodeO44.41Low lying placenta NOS or without hemorrhage, first trimester

Code EditsBilling

Medicare Code Editor checks that affect claim validity for O44.41.

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).

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

Convert O44.41 to ICD-9-CMHistory

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

ICD-9-CM
641.01 Placenta previa-deliver
Approximate The match is approximate rather than exact.
ICD-9-CM
641.03 Placenta previa-antepart
Approximate The match is approximate rather than exact.

Code History & ChangesHistory

Replacement O44.41 replaces the following previously assigned code(s):

  • O44.01 - Complete placenta previa NOS or without hemor, first tri
  • O44.01 - Placenta previa specified as w/o hemorrhage, first trimester
FY 2018AddedAdded to the ICD-10-CM code setEffective October 1, 2017.
FY 2019–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About O44.41Overview

Is O44.41 (Low lying placenta NOS or without hemorrhage) a billable code?

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

What MS-DRG does O44.41 group to?

When low lying placenta NOS or without hemorrhage, first 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 O44.41 be reported for?

The Medicare Code Editor checks low lying placenta NOS or without hemorrhage, first 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 O44.41?

Under the General Equivalence Mappings, low lying placenta NOS or without hemorrhage, first trimester converts to ICD-9-CM 641.01 (placenta previa-deliver) and 641.03 (placenta previa-antepart). 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.