DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

O15 Eclampsia

  • Header · not billable

O15 is not billable. The category heads 6 billable codes in FY2027, grouped under 4 subdivisions.

Index → code

  • Eclampsia, eclamptic (coma) (convulsions) (delirium) (with hypertension) NEC → O15.9
  • Puerperal, puerperium (complicated by, complications)eclampsia (with pre-existing hypertension) → O15.2
  • Puerperal, puerperium (complicated by, complications)toxemia (eclamptic) (pre-eclamptic) (with convulsions) → O15.2

Where it sits

  1. Chapter 15 Pregnancy, childbirth and the puerperium (O00-O9A)
  2. O10-O16 Edema, proteinuria and hypertensive disorders in pregnancy, childbirth and the puerperium (O10-O16)
  3. O15 Eclampsia
Billable codes
6
Subdivisions
4
CC / MCC codes
0 / 4
HCC V28 codes
0
New FY2027
0
Index entries
10

Codes in O15

  1. O15.0
    Eclampsia complicating pregnancy
    Header
  2. O15.00
    Eclampsia complicating pregnancy, unspecified trimester
    Billable
  3. O15.02
    Eclampsia complicating pregnancy, second trimester
    BillableMCC
  4. O15.03
    Eclampsia complicating pregnancy, third trimester
    BillableMCC
  5. O15.1
    Eclampsia complicating labor
    BillableMCC
  6. O15.2
    Eclampsia complicating the puerperium
    BillableMCC
  7. O15.9
    Eclampsia, unspecified as to time period
    Billable
    Inclusion terms 1

    Inclusion terms

    • Eclampsia NOS

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 O15

Includes

  • convulsions following conditions in O10-O14 and O16 O10 O14 O16

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

  • Eclampsia, eclamptic (coma) (convulsions) (delirium) (with hypertension) NEC → O15.9
  • Puerperal, puerperium (complicated by, complications)eclampsia (with pre-existing hypertension) → O15.2
  • Puerperal, puerperium (complicated by, complications)toxemia (eclamptic) (pre-eclamptic) (with convulsions) → O15.2
  • Pregnancy (single) (uterine)complicated by (care of) (management affected by)eclampsia, eclamptic (coma) (convulsions) (delirium) (nephritis) (uremia) → O15.-
  • Eclampsia, eclamptic (coma) (convulsions) (delirium) (with hypertension) NECcomplicatingpregnancy → O15.0-
  • Eclampsia, eclamptic (coma) (convulsions) (delirium) (with hypertension) NECcomplicatinglabor and delivery → O15.1
  • Eclampsia, eclamptic (coma) (convulsions) (delirium) (with hypertension) NECcomplicatingpostpartum → O15.2
  • Eclampsia, eclamptic (coma) (convulsions) (delirium) (with hypertension) NECcomplicatingpuerperium → O15.2
  • Pregnancy (single) (uterine)complicated by (care of) (management affected by)convulsions (eclamptic) (uremic) → O15.9-
  • Delivery (childbirth) (labor)complicatedbyeclampsia → O15.1

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

Hierarchy