DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

O46 Antepartum hemorrhage, not elsewhere classified

  • Header · not billable

O46 is not billable. The category heads 24 billable codes in FY2027, grouped under 3 subdivisions.

Index → code

  • Hemorrhage, hemorrhagic (concealed)antepartum (with) → O46.90
  • Hemorrhage, hemorrhagic (concealed)antepartum (with)specified cause NEC → O46.8X-
  • Hemorrhage, hemorrhagic (concealed)antepartum (with)with coagulation defect → O46.00-

Where it sits

  1. Chapter 15 Pregnancy, childbirth and the puerperium (O00-O9A)
  2. O30-O48 Maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)
  3. O46 Antepartum hemorrhage, not elsewhere classified
Billable codes
24
Subdivisions
3
CC / MCC codes
0 / 12
HCC V28 codes
0
New FY2027
0
Index entries
9

Codes in O46

  1. O46.0
    Antepartum hemorrhage with coagulation defect
    Header
  2. O46.00
    Antepartum hemorrhage with coagulation defect, unspecified
    Header
  3. O46.001
    Antepartum hemorrhage with coagulation defect, unspecified, first trimester
    BillableMCC
  4. O46.002
    Antepartum hemorrhage with coagulation defect, unspecified, second trimester
    BillableMCC
  5. O46.003
    Antepartum hemorrhage with coagulation defect, unspecified, third trimester
    BillableMCC
  6. O46.009
    Antepartum hemorrhage with coagulation defect, unspecified, unspecified trimester
    Billable
  7. O46.01
    Antepartum hemorrhage with afibrinogenemia
    Header
    Inclusion terms 1

    Inclusion terms

    • Antepartum hemorrhage with hypofibrinogenemia
  8. O46.011
    Antepartum hemorrhage with afibrinogenemia, first trimester
    BillableMCC
  9. O46.012
    Antepartum hemorrhage with afibrinogenemia, second trimester
    BillableMCC
  10. O46.013
    Antepartum hemorrhage with afibrinogenemia, third trimester
    BillableMCC
  11. O46.019
    Antepartum hemorrhage with afibrinogenemia, unspecified trimester
    Billable
  12. O46.02
    Antepartum hemorrhage with disseminated intravascular coagulation
    Header
  13. O46.021
    Antepartum hemorrhage with disseminated intravascular coagulation, first trimester
    BillableMCC
  14. O46.022
    Antepartum hemorrhage with disseminated intravascular coagulation, second trimester
    BillableMCC
  15. O46.023
    Antepartum hemorrhage with disseminated intravascular coagulation, third trimester
    BillableMCC
  16. O46.029
    Antepartum hemorrhage with disseminated intravascular coagulation, unspecified trimester
    Billable
  17. O46.09
    Antepartum hemorrhage with other coagulation defect
    Header
  18. O46.091
    Antepartum hemorrhage with other coagulation defect, first trimester
    BillableMCC
  19. O46.092
    Antepartum hemorrhage with other coagulation defect, second trimester
    BillableMCC
  20. O46.093
    Antepartum hemorrhage with other coagulation defect, third trimester
    BillableMCC
  21. O46.099
    Antepartum hemorrhage with other coagulation defect, unspecified trimester
    Billable
  22. O46.8
    Other antepartum hemorrhage
    Header
  23. O46.8X
    Other antepartum hemorrhage
    Header
  24. O46.8X1
    Other antepartum hemorrhage, first trimester
    Billable
  25. O46.8X2
    Other antepartum hemorrhage, second trimester
    Billable
  26. O46.8X3
    Other antepartum hemorrhage, third trimester
    Billable
  27. O46.8X9
    Other antepartum hemorrhage, unspecified trimester
    Billable
  28. O46.9
    Antepartum hemorrhage, unspecified
    Header
  29. O46.90
    Antepartum hemorrhage, unspecified, unspecified trimester
    Billable
  30. O46.91
    Antepartum hemorrhage, unspecified, first trimester
    Billable
  31. O46.92
    Antepartum hemorrhage, unspecified, second trimester
    Billable
  32. O46.93
    Antepartum hemorrhage, unspecified, third trimester
    Billable

CC/MCC: as a secondary diagnosis, unless the principal diagnosis is on the code’s PDX exclusion list (MS-DRG v44 Appendix C; list on the code card).

Sources of each column.

Instructions

At O46

Excludes1

  • hemorrhage in early pregnancy (O20.-) O20
  • intrapartum hemorrhage NEC (O67.-) O67
  • placenta previa (O44.-) O44
  • premature separation of placenta [abruptio placentae] (O45.-) O45

Notes that also apply

Chapter 15 instructions (Notes 6, Excludes1 1, Excludes2 4, Use additional code 1): printed on the chapter 15 page.

Index entries

  • Hemorrhage, hemorrhagic (concealed)antepartum (with) → O46.90
  • Hemorrhage, hemorrhagic (concealed)antepartum (with)with coagulation defect → O46.00-
  • Hemorrhage, hemorrhagic (concealed)antepartum (with)specified cause NEC → O46.8X-
  • Pregnancy (single) (uterine)complicated by (care of) (management affected by)antepartum hemorrhage → O46.9-
  • Hemorrhage, hemorrhagic (concealed)antepartum (with)with coagulation defectafibrinogenemia → O46.01-
  • Hemorrhage, hemorrhagic (concealed)antepartum (with)with coagulation defecthypofibrinogenemia → O46.01-
  • Hemorrhage, hemorrhagic (concealed)antepartum (with)with coagulation defectdisseminated intravascular coagulation → O46.02-
  • Hemorrhage, hemorrhagic (concealed)antepartum (with)with coagulation defectspecified defect NEC → O46.09-
  • Pregnancy (single) (uterine)complicated by (care of) (management affected by)antepartum hemorrhagespecified NEC → O46.8X-

NCHS Alphabetic Index. Index first, then the Tabular List.

Hierarchy