DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

O12 Gestational [pregnancy-induced] edema and proteinuria without hypertension

  • Header · not billable

O12 is not billable. The category heads 18 billable codes in FY2027, grouped under 3 subdivisions.

Index → code

  • Proteinuriapuerperal → O12.15
  • Puerperal, puerperium (complicated by, complications)gestationaledema → O12.05
  • Puerperal, puerperium (complicated by, complications)gestationalproteinuria → O12.15

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. O12 Gestational [pregnancy-induced] edema and proteinuria without hypertension
Billable codes
18
Subdivisions
3
CC / MCC codes
6 / 0
HCC V28 codes
0
New FY2027
0
Index entries
16

Codes in O12

  1. O12.0
    Gestational edema
    Header
  2. O12.00
    Gestational edema, unspecified trimester
    Billable
  3. O12.01
    Gestational edema, first trimester
    Billable
  4. O12.02
    Gestational edema, second trimester
    Billable
  5. O12.03
    Gestational edema, third trimester
    Billable
  6. O12.04
    Gestational edema, complicating childbirth
    Billable
  7. O12.05
    Gestational edema, complicating the puerperium
    Billable
  8. O12.1
    Gestational proteinuria
    Header
  9. O12.10
    Gestational proteinuria, unspecified trimester
    Billable
  10. O12.11
    Gestational proteinuria, first trimester
    BillableCC
  11. O12.12
    Gestational proteinuria, second trimester
    BillableCC
  12. O12.13
    Gestational proteinuria, third trimester
    BillableCC
  13. O12.14
    Gestational proteinuria, complicating childbirth
    Billable
  14. O12.15
    Gestational proteinuria, complicating the puerperium
    Billable
  15. O12.2
    Gestational edema with proteinuria
    Header
  16. O12.20
    Gestational edema with proteinuria, unspecified trimester
    Billable
  17. O12.21
    Gestational edema with proteinuria, first trimester
    BillableCC
  18. O12.22
    Gestational edema with proteinuria, second trimester
    BillableCC
  19. O12.23
    Gestational edema with proteinuria, third trimester
    BillableCC
  20. O12.24
    Gestational edema with proteinuria, complicating childbirth
    Billable
  21. O12.25
    Gestational edema with proteinuria, complicating the puerperium
    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

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

  • Proteinuriapuerperal → O12.15
  • Pregnancy (single) (uterine)complicated by (care of) (management affected by)edema → O12.0-
  • Puerperal, puerperium (complicated by, complications)gestationaledema → O12.05
  • Pregnancy (single) (uterine)complicated by (care of) (management affected by)albuminuria → O12.1-
  • Pregnancy (single) (uterine)complicated by (care of) (management affected by)proteinuria (gestational) → O12.1-
  • Puerperal, puerperium (complicated by, complications)gestationalproteinuria → O12.15
  • Proteinuriagestationalcomplicatingpregnancy → O12.1-
  • Proteinuriagestationalcomplicatingchildbirth → O12.14
  • Proteinuriagestationalcomplicatingpuerperium → O12.15
  • Pregnancy (single) (uterine)complicated by (care of) (management affected by)proteinuria (gestational)with edema → O12.2-
  • Puerperal, puerperium (complicated by, complications)gestationaledemawith proteinuria → O12.25
  • Delivery (childbirth) (labor)complicatedbygestationaledema → O12.04
  • Delivery (childbirth) (labor)complicatedbygestationalproteinuria → O12.14
  • Pregnancy (single) (uterine)complicated by (care of) (management affected by)edemawithproteinuria → O12.2-
  • Proteinuriagestationalcomplicatingpregnancywith edema → O12.2-
  • Delivery (childbirth) (labor)complicatedbygestationaledemawith proteinuria → O12.24

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

Hierarchy