DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

O24 Diabetes mellitus in pregnancy, childbirth, and the puerperium

  • Header · not billable

O24 is not billable. The category heads 42 billable codes in FY2027, grouped under 6 subdivisions.

ICD-10 code by name

What is the ICD-10 code for gestational diabetes?
Gestational diabetes ICD-10 code: O24.419 Gestational diabetes mellitus in pregnancy, unspecified control. Alphabetic Index: Diabetes, diabetic (mellitus) (sugar)gestational (in pregnancy) → O24.419. Search ICD-10 for gestational diabetes

Where it sits

  1. Chapter 15 Pregnancy, childbirth and the puerperium (O00-O9A)
  2. O20-O29 Other maternal disorders predominantly related to pregnancy (O20-O29)
  3. O24 Diabetes mellitus in pregnancy, childbirth, and the puerperium
Billable codes
42
Subdivisions
6
CC / MCC codes
25 / 4
HCC V28 codes
0
New FY2027
0
Index entries
39

Codes in O24

  1. O24.0
    Pre-existing type 1 diabetes mellitus, in pregnancy, childbirth and the puerperium
    Header
    Inclusion terms 2, Use additional code 1

    Inclusion terms

    • Juvenile onset diabetes mellitus, in pregnancy, childbirth and the puerperium
    • Ketosis-prone diabetes mellitus in pregnancy, childbirth and the puerperium

    Use additional code

    • code from category E10 to further identify any manifestations E10
  2. O24.01
    Pre-existing type 1 diabetes mellitus, in pregnancy
    Header
  3. O24.011
    Pre-existing type 1 diabetes mellitus, in pregnancy, first trimester
    BillableCC
  4. O24.012
    Pre-existing type 1 diabetes mellitus, in pregnancy, second trimester
    BillableCC
  5. O24.013
    Pre-existing type 1 diabetes mellitus, in pregnancy, third trimester
    BillableCC
  6. O24.019
    Pre-existing type 1 diabetes mellitus, in pregnancy, unspecified trimester
    BillableCC
  7. O24.02
    Pre-existing type 1 diabetes mellitus, in childbirth
    BillableMCC
  8. O24.03
    Pre-existing type 1 diabetes mellitus, in the puerperium
    BillableCC
  9. O24.1
    Pre-existing type 2 diabetes mellitus, in pregnancy, childbirth and the puerperium
    Header
    Inclusion terms 1, Use additional code 4

    Inclusion terms

    • Insulin-resistant diabetes mellitus in pregnancy, childbirth and the puerperium

    Use additional code

    • code (for):
    • from category E11 to further identify any manifestations E11
    • injectable non-insulin antidiabetic drugs (Z79.85) Z79.85
    • long-term (current) use of insulin (Z79.4) Z79.4
  10. O24.11
    Pre-existing type 2 diabetes mellitus, in pregnancy
    Header
  11. O24.111
    Pre-existing type 2 diabetes mellitus, in pregnancy, first trimester
    BillableCC
  12. O24.112
    Pre-existing type 2 diabetes mellitus, in pregnancy, second trimester
    BillableCC
  13. O24.113
    Pre-existing type 2 diabetes mellitus, in pregnancy, third trimester
    BillableCC
  14. O24.119
    Pre-existing type 2 diabetes mellitus, in pregnancy, unspecified trimester
    BillableCC
  15. O24.12
    Pre-existing type 2 diabetes mellitus, in childbirth
    BillableMCC
  16. O24.13
    Pre-existing type 2 diabetes mellitus, in the puerperium
    BillableCC
  17. O24.3
    Unspecified pre-existing diabetes mellitus in pregnancy, childbirth and the puerperium
    Header
    Use additional code 4

    Use additional code

    • code (for):
    • from category E11 to further identify any manifestation E11
    • injectable non-insulin antidiabetic drugs (Z79.85) Z79.85
    • long-term (current) use of insulin (Z79.4) Z79.4
  18. O24.31
    Unspecified pre-existing diabetes mellitus in pregnancy
    Header
  19. O24.311
    Unspecified pre-existing diabetes mellitus in pregnancy, first trimester
    BillableCC
  20. O24.312
    Unspecified pre-existing diabetes mellitus in pregnancy, second trimester
    BillableCC
  21. O24.313
    Unspecified pre-existing diabetes mellitus in pregnancy, third trimester
    BillableCC
  22. O24.319
    Unspecified pre-existing diabetes mellitus in pregnancy, unspecified trimester
    BillableCC
  23. O24.32
    Unspecified pre-existing diabetes mellitus in childbirth
    BillableMCC
  24. O24.33
    Unspecified pre-existing diabetes mellitus in the puerperium
    BillableCC
  25. O24.4
    Gestational diabetes mellitus
    Header
    Inclusion terms 2

    Inclusion terms

    • Diabetes mellitus arising in pregnancy
    • Gestational diabetes mellitus NOS
  26. O24.41
    Gestational diabetes mellitus in pregnancy
    Header
  27. O24.410
    Gestational diabetes mellitus in pregnancy, diet controlled
    Billable
  28. O24.414
    Gestational diabetes mellitus in pregnancy, insulin controlled
    Billable
  29. O24.415
    Gestational diabetes mellitus in pregnancy, controlled by oral hypoglycemic drugs
    Billable
    Inclusion terms 1

    Inclusion terms

    • Gestational diabetes mellitus in pregnancy, controlled by oral antidiabetic drugs
  30. O24.419
    Gestational diabetes mellitus in pregnancy, unspecified control
    Billable
  31. O24.42
    Gestational diabetes mellitus in childbirth
    Header
  32. O24.420
    Gestational diabetes mellitus in childbirth, diet controlled
    Billable
  33. O24.424
    Gestational diabetes mellitus in childbirth, insulin controlled
    Billable
  34. O24.425
    Gestational diabetes mellitus in childbirth, controlled by oral hypoglycemic drugs
    Billable
    Inclusion terms 1

    Inclusion terms

    • Gestational diabetes mellitus in childbirth, controlled by oral antidiabetic drugs
  35. O24.429
    Gestational diabetes mellitus in childbirth, unspecified control
    Billable
  36. O24.43
    Gestational diabetes mellitus in the puerperium
    Header
  37. O24.430
    Gestational diabetes mellitus in the puerperium, diet controlled
    Billable
  38. O24.434
    Gestational diabetes mellitus in the puerperium, insulin controlled
    Billable
  39. O24.435
    Gestational diabetes mellitus in puerperium, controlled by oral hypoglycemic drugs
    Billable
    Inclusion terms 1

    Inclusion terms

    • Gestational diabetes mellitus in puerperium, controlled by oral antidiabetic drugs
  40. O24.439
    Gestational diabetes mellitus in the puerperium, unspecified control
    Billable
  41. O24.8
    Other pre-existing diabetes mellitus in pregnancy, childbirth, and the puerperium
    Header
    Use additional code 4

    Use additional code

    • code (for):
    • from categories E08, E09 and E13 to further identify any manifestation E08 E09 E13
    • injectable non-insulin antidiabetic drugs (Z79.85) Z79.85
    • long-term (current) use of insulin (Z79.4) Z79.4
  42. O24.81
    Other pre-existing diabetes mellitus in pregnancy
    Header
  43. O24.811
    Other pre-existing diabetes mellitus in pregnancy, first trimester
    BillableCC
  44. O24.812
    Other pre-existing diabetes mellitus in pregnancy, second trimester
    BillableCC
  45. O24.813
    Other pre-existing diabetes mellitus in pregnancy, third trimester
    BillableCC
  46. O24.819
    Other pre-existing diabetes mellitus in pregnancy, unspecified trimester
    BillableCC
  47. O24.82
    Other pre-existing diabetes mellitus in childbirth
    BillableMCC
  48. O24.83
    Other pre-existing diabetes mellitus in the puerperium
    BillableCC
  49. O24.9
    Unspecified diabetes mellitus in pregnancy, childbirth and the puerperium
    Header
    Use additional code 4

    Use additional code

    • code (for):
    • from categories E08, E09 and E13 to further identify any manifestation E08 E09 E13
    • injectable non-insulin antidiabetic drugs (Z79.85) Z79.85
    • long-term (current) use of insulin (Z79.4) Z79.4
  50. O24.91
    Unspecified diabetes mellitus in pregnancy
    Header
  51. O24.911
    Unspecified diabetes mellitus in pregnancy, first trimester
    BillableCC
  52. O24.912
    Unspecified diabetes mellitus in pregnancy, second trimester
    BillableCC
  53. O24.913
    Unspecified diabetes mellitus in pregnancy, third trimester
    BillableCC
  54. O24.919
    Unspecified diabetes mellitus in pregnancy, unspecified trimester
    BillableCC
  55. O24.92
    Unspecified diabetes mellitus in childbirth
    Billable
  56. O24.93
    Unspecified diabetes mellitus in the puerperium
    BillableCC

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

Block O20-O29 instructions (Excludes2 2): printed on the block page.

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

Index entries

  • Diabetes, diabetic (mellitus) (sugar)gestational (in pregnancy) → O24.419
  • Puerperal, puerperium (complicated by, complications)diabetes → O24.93
  • Puerperal, puerperium (complicated by, complications)diabetespre-existing → O24.33
  • Diabetes, diabetic (mellitus) (sugar)gestational (in pregnancy)diet controlled → O24.410
  • Diabetes, diabetic (mellitus) (sugar)gestational (in pregnancy)insulin (and diet) controlled → O24.414
  • Diabetes, diabetic (mellitus) (sugar)gestational (in pregnancy)oral drug controlled (antidiabetic) (hypoglycemic) → O24.415
  • Diabetes, diabetic (mellitus) (sugar)gestational (in pregnancy)in childbirth → O24.429
  • Diabetes, diabetic (mellitus) (sugar)gestational (in pregnancy)puerperal → O24.439
  • Puerperal, puerperium (complicated by, complications)gestationaldiabetes → O24.439
  • Pregnancy (single) (uterine)complicated by (care of) (management affected by)diabetes (mellitus) → O24.91-
  • Puerperal, puerperium (complicated by, complications)diabetespre-existingtype 1 → O24.03
  • Puerperal, puerperium (complicated by, complications)diabetespre-existingtype 2 → O24.13
  • Pregnancy (single) (uterine)complicated by (care of) (management affected by)diabetes (mellitus)pre-existing → O24.31-
  • Diabetes, diabetic (mellitus) (sugar)gestational (in pregnancy)in childbirthdiet controlled → O24.420
  • Diabetes, diabetic (mellitus) (sugar)gestational (in pregnancy)in childbirthinsulin (and diet) controlled → O24.424
  • Diabetes, diabetic (mellitus) (sugar)gestational (in pregnancy)in childbirthoral drug controlled (antidiabetic) (hypoglycemic) → O24.425
  • Diabetes, diabetic (mellitus) (sugar)gestational (in pregnancy)puerperaldiet controlled → O24.430
  • Puerperal, puerperium (complicated by, complications)gestationaldiabetesdiet controlled → O24.430
  • Diabetes, diabetic (mellitus) (sugar)gestational (in pregnancy)puerperalinsulin (and diet) controlled → O24.434
  • Puerperal, puerperium (complicated by, complications)gestationaldiabetesinsulin (and diet) controlled → O24.434
  • Diabetes, diabetic (mellitus) (sugar)gestational (in pregnancy)puerperaloral drug controlled (antidiabetic) (hypoglycemic) → O24.435
  • Puerperal, puerperium (complicated by, complications)gestationaldiabetesoral drug controlled (antidiabetic) (hypoglycemic) → O24.435
  • Puerperal, puerperium (complicated by, complications)diabetespre-existingspecified NEC → O24.83
  • Delivery (childbirth) (labor)complicatedbydiabetes → O24.92
  • Pregnancy (single) (uterine)complicated by (care of) (management affected by)diabetes (mellitus)pre-existingtype 1 → O24.01-
  • Pregnancy (single) (uterine)complicated by (care of) (management affected by)diabetes (mellitus)pre-existingtype 2 → O24.11-
  • Delivery (childbirth) (labor)complicatedbydiabetespre-existing → O24.32
  • Delivery (childbirth) (labor)complicatedbydiabetesgestational → O24.429
  • Delivery (childbirth) (labor)complicatedbygestationaldiabetes → O24.429
  • Pregnancy (single) (uterine)complicated by (care of) (management affected by)diabetes (mellitus)pre-existingspecified NEC → O24.81-
  • Delivery (childbirth) (labor)complicatedbydiabetespre-existingtype 1 → O24.02
  • Delivery (childbirth) (labor)complicatedbydiabetespre-existingtype 2 → O24.12
  • Delivery (childbirth) (labor)complicatedbydiabetesgestationaldiet controlled → O24.420
  • Delivery (childbirth) (labor)complicatedbygestationaldiabetesdiet controlled → O24.420
  • Delivery (childbirth) (labor)complicatedbydiabetesgestationalinsulin controlled → O24.424
  • Delivery (childbirth) (labor)complicatedbygestationaldiabetesinsulin (and diet) controlled → O24.424
  • Delivery (childbirth) (labor)complicatedbydiabetesgestationaloral drug controlled (antidiabetic) (hypoglycemic) → O24.425
  • Delivery (childbirth) (labor)complicatedbygestationaldiabetesoral drug controlled (antidiabetic) (hypoglycemic) → O24.425
  • Delivery (childbirth) (labor)complicatedbydiabetespre-existingspecified NEC → O24.82

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

Hierarchy