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ICD-10-CM 2027 diagnosis code

O46.01Antepartum hemorrhage with afibrinogenemia

Not billable — use a more specific code

O46.01 is a header code, so it can't be reported by itself. Choose one of the 4 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About O46.01

O46.01 is the ICD-10-CM diagnosis code for antepartum hemorrhage with afibrinogenemia. It belongs to category O46 (antepartum hemorrhage, not elsewhere classified), block O30-O48 (maternal care related to the fetus and amniotic cavity and possible delivery problems) and chapter 15 (pregnancy, childbirth and the puerperium). It is a header code, so it can't be reported by itself; one of its 4 subcodes must be used instead.

Within O46.0 (antepartum hemorrhage with coagulation defect), O46.01 is specifically for antepartum hemorrhage with afibrinogenemia. Related codes cover unspecified (O46.00), disseminated intravascular coagulation (O46.02) and other coagulation defect (O46.09).

To report this condition, pick the subcode that matches the documentation: O46.011 (first trimester), O46.012 (second trimester), O46.013 (third trimester) and O46.019 (unspecified trimester).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under O46.01

Coding notes

Applicable toConditions and synonyms classified to this code
  • Antepartum hemorrhage with hypofibrinogenemia

Notes that apply from higher levels

Instructions written at a parent level also apply to O46.01.

› From O46 Antepartum hemorrhage, not elsewhere classified
Excludes1
  • hemorrhage in early pregnancy (O20.-)
  • intrapartum hemorrhage NEC (O67.-)
  • placenta previa (O44.-)
  • premature separation of placenta [abruptio placentae] (O45.-)

Broader instructions also apply from Chapter 15: Pregnancy, childbirth and the puerperium.

Alphabetic index entries

2 entries

Terms in the official ICD-10-CM index that lead to O46.01.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about O46.01

Is O46.01 billable?

No. O46.01 is a header code. Report one of its more specific subcodes instead.