O46.001 Antepartum hemorrhage with coagulation defect, unspecified, first trimester

The ICD-10-CM code for Antepartum hemorrhage with coagulation defect, unspecified, first trimester is O46.001 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

Chapter

15: Pregnancy, childbirth and the puerperium (O00-O9A)

Section

O30-O48: Maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)

Category O46

33 codes (24 billable)

FY2026 Status

Stable since FY2024

U.S. Hospital Utilization

O46.001 appeared in too few sampled U.S. inpatient stays in 2022 to report a national estimate (AHRQ suppresses counts of 10 or fewer) — a rare inpatient diagnosis.

Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.

References

• CMS — ICD-10-CM Official Code Set and Guidelines, FY2026
• CDC/NCHS — ICD-10-CM Files and Browser Tool
• AHRQ — HCUP National Inpatient Sample, Frequencies by Diagnosis Code (2016–2023)

Cite This Page

Reference O46.001 with the canonical source and edition:

O46.001 — Antepartum hemorrhage with coagulation defect, unspecified, first trimester. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/O46.001

Canonical URL: https://icd10codingpro.com/codes/O46.001