2026 ICD-10-CM Diagnosis Code O46.029Antepartum hemorrhage with disseminated intravascular coagulation, unspecified trimester
ICD-10-CM Codes›O00-O9A›O30-O48›O46
- Billable — Valid for Submission
- Not Chronic
O46.029 is a billable ICD-10-CM diagnosis code for antepartum hemorrhage with disseminated intravascular coagulation, 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 antepartum hemorrhage associated with coagulation defect. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Early, first or unspecified trimester hemorrhage.
Code Identity
Code Classification
Code EditsBilling
Medicare Code Editor checks that affect claim validity for O46.029.
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Antepartum hemorrhage associated with coagulation defect
- Antepartum hemorrhage with disseminated intravascular coagulation
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Bleeding Disorders
Normally, if you get hurt, your body forms a blood clot to stop the bleeding. For blood to clot, your body needs cells called platelets and proteins known as clotting factors. If you have a bleeding disorder, you either do not have enough platelets or clotting factors or they don't work the way they should.
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Convert O46.029 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About O46.029Overview
Is O46.029 a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report antepartum hemorrhage with disseminated intravascular coagulation, unspecified trimester on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does O46.029 group to?
When antepartum hemorrhage with disseminated intravascular coagulation, 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 O46.029 be reported for?
The Medicare Code Editor checks antepartum hemorrhage with disseminated intravascular coagulation, 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 O46.029?
Under the General Equivalence Mappings, antepartum hemorrhage with disseminated intravascular coagulation, unspecified trimester converts to ICD-9-CM 641.30 (coag def hemorr-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.
