2027 ICD-10-CM Diagnosis Code O44.41Low lying placenta NOS or without hemorrhage, first trimester
ICD-10-CM Codes›O00-O9A›O30-O48›O44
- Billable — Valid for Submission
- CC — Complication or Comorbidity
- Not Chronic
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 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 817 through 819, 831 through 833. As a secondary diagnosis, it counts as a complication or comorbidity (CC) and moves an inpatient stay to a higher severity level within its MS-DRG family. It does not count, however, when the principal diagnosis is one of 247 closely related codes. 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
Code Classification
Code EditsBilling
Medicare Code Editor checks that affect claim validity for O44.41.
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to O44.41: 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.
- 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.
Use Additional Code
Add a second code, after this one, to fully describe the condition.
- 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.
- 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 O44.41, its category, or a range that includes it.
Excludes1 2
These codes carry an Excludes1 note naming O44.41: they are not reported together with it, unless the two conditions are unrelated.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Low-Lying Placenta
a condition in which the placental edge is within 2 cm of but not covering the cervical os.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.
Patient EducationClinical
Health Problems in Pregnancy
A health problem in pregnancy is any disease or condition that could affect your health or the health of your fetus. Some health problems may make it more likely that you will have a high-risk pregnancy. A high-risk pregnancy is one in which you, your fetus, or both are at higher risk for health problems than in a typical pregnancy.
The full article covers:
- What are health problems in pregnancy?
- What raises my risk for health problems during pregnancy?
- Can chronic health conditions cause problems in pregnancy?
- Can health problems in pregnancy be prevented?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert O44.41 to ICD-9-CMHistory
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
Questions About O44.41Overview
What is the ICD-10 code for low lying placenta NOS or without hemorrhage, first trimester?
The ICD-10-CM code for low lying placenta NOS or without hemorrhage, first trimester is O44.41 (sometimes written as O4441). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
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, 2026 through September 30, 2027.
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 833, 832, 831, 819, 818, 817, with relative weights from 0.5000 to 1.7586 depending on complications. Higher weights mean higher Medicare reimbursement.
Is O44.41 a CC or MCC?
CMS lists O44.41 as a CC (complication or comorbidity) for FY 2027. Reported as a secondary diagnosis, it moves the inpatient stay to a higher-weighted DRG within its severity family. It does not count when the principal diagnosis is one of the 247 closely related codes in its exclusion list.
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.
