DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

O26 Maternal care for other conditions predominantly related to pregnancy

  • Header · not billable

O26 is not billable. The category heads 72 billable codes in FY2027, grouped under 10 subdivisions.

Index → code

  • Hysteralgia, pregnant uterus → O26.89-
  • Discrepancyuterine size date → O26.84-
  • Nephropathypregnancy-related → O26.83-

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. O26 Maternal care for other conditions predominantly related to pregnancy
Billable codes
72
Subdivisions
10
CC / MCC codes
13 / 0
HCC V28 codes
0
New FY2027
0
Index entries
58

Codes in O26

  1. O26.0
    Excessive weight gain in pregnancy
    Header
    Excludes2 1

    Excludes2

  2. O26.00
    Excessive weight gain in pregnancy, unspecified trimester
    Billable
  3. O26.01
    Excessive weight gain in pregnancy, first trimester
    Billable
  4. O26.02
    Excessive weight gain in pregnancy, second trimester
    Billable
  5. O26.03
    Excessive weight gain in pregnancy, third trimester
    Billable
  6. O26.1
    Low weight gain in pregnancy
    Header
  7. O26.10
    Low weight gain in pregnancy, unspecified trimester
    Billable
  8. O26.11
    Low weight gain in pregnancy, first trimester
    Billable
  9. O26.12
    Low weight gain in pregnancy, second trimester
    Billable
  10. O26.13
    Low weight gain in pregnancy, third trimester
    Billable
  11. O26.2
    Pregnancy care for patient with recurrent pregnancy loss
    Header
  12. O26.20
    Pregnancy care for patient with recurrent pregnancy loss, unspecified trimester
    Billable
  13. O26.21
    Pregnancy care for patient with recurrent pregnancy loss, first trimester
    Billable
  14. O26.22
    Pregnancy care for patient with recurrent pregnancy loss, second trimester
    Billable
  15. O26.23
    Pregnancy care for patient with recurrent pregnancy loss, third trimester
    Billable
  16. O26.3
    Retained intrauterine contraceptive device in pregnancy
    Header
  17. O26.30
    Retained intrauterine contraceptive device in pregnancy, unspecified trimester
    Billable
  18. O26.31
    Retained intrauterine contraceptive device in pregnancy, first trimester
    Billable
  19. O26.32
    Retained intrauterine contraceptive device in pregnancy, second trimester
    Billable
  20. O26.33
    Retained intrauterine contraceptive device in pregnancy, third trimester
    Billable
  21. O26.4
    Herpes gestationis
    Header
  22. O26.40
    Herpes gestationis, unspecified trimester
    Billable
  23. O26.41
    Herpes gestationis, first trimester
    Billable
  24. O26.42
    Herpes gestationis, second trimester
    Billable
  25. O26.43
    Herpes gestationis, third trimester
    Billable
  26. O26.5
    Maternal hypotension syndrome
    Header
    Inclusion terms 1

    Inclusion terms

    • Supine hypotensive syndrome
  27. O26.50
    Maternal hypotension syndrome, unspecified trimester
    Billable
  28. O26.51
    Maternal hypotension syndrome, first trimester
    Billable
  29. O26.52
    Maternal hypotension syndrome, second trimester
    Billable
  30. O26.53
    Maternal hypotension syndrome, third trimester
    Billable
  31. O26.6
    Liver and biliary tract disorders in pregnancy, childbirth and the puerperium
    Header
    Excludes2 1, Use additional code 1

    Excludes2

    • hepatorenal syndrome following labor and delivery (O90.41) O90.41

    Use additional code

    • code to identify the specific disorder
  32. O26.61
    Liver and biliary tract disorders in pregnancy
    Header
  33. O26.611
    Liver and biliary tract disorders in pregnancy, first trimester
    BillableCC
  34. O26.612
    Liver and biliary tract disorders in pregnancy, second trimester
    BillableCC
  35. O26.613
    Liver and biliary tract disorders in pregnancy, third trimester
    BillableCC
  36. O26.619
    Liver and biliary tract disorders in pregnancy, unspecified trimester
    Billable
  37. O26.62
    Liver and biliary tract disorders in childbirth
    BillableCC
  38. O26.63
    Liver and biliary tract disorders in the puerperium
    Billable
  39. O26.64
    Intrahepatic cholestasis of pregnancy
    Header
    Use additional code 1

    Use additional code

    • code for hepatic obstruction (K76.89) K76.89
  40. O26.641
    Intrahepatic cholestasis of pregnancy, first trimester
    BillableCC
  41. O26.642
    Intrahepatic cholestasis of pregnancy, second trimester
    BillableCC
  42. O26.643
    Intrahepatic cholestasis of pregnancy, third trimester
    BillableCC
  43. O26.649
    Intrahepatic cholestasis of pregnancy, unspecified trimester
    Billable
  44. O26.7
    Subluxation of symphysis (pubis) in pregnancy, childbirth and the puerperium
    Header
    Excludes1 1

    Excludes1

    • traumatic separation of symphysis (pubis) during childbirth (O71.6) O71.6
  45. O26.71
    Subluxation of symphysis (pubis) in pregnancy
    Header
  46. O26.711
    Subluxation of symphysis (pubis) in pregnancy, first trimester
    Billable
  47. O26.712
    Subluxation of symphysis (pubis) in pregnancy, second trimester
    Billable
  48. O26.713
    Subluxation of symphysis (pubis) in pregnancy, third trimester
    Billable
  49. O26.719
    Subluxation of symphysis (pubis) in pregnancy, unspecified trimester
    Billable
  50. O26.72
    Subluxation of symphysis (pubis) in childbirth
    Billable
  51. O26.73
    Subluxation of symphysis (pubis) in the puerperium
    Billable
  52. O26.8
    Other specified pregnancy related conditions
    Header
  53. O26.81
    Pregnancy related exhaustion and fatigue
    Header
  54. O26.811
    Pregnancy related exhaustion and fatigue, first trimester
    Billable
  55. O26.812
    Pregnancy related exhaustion and fatigue, second trimester
    Billable
  56. O26.813
    Pregnancy related exhaustion and fatigue, third trimester
    Billable
  57. O26.819
    Pregnancy related exhaustion and fatigue, unspecified trimester
    Billable
  58. O26.82
    Pregnancy related peripheral neuritis
    Header
  59. O26.821
    Pregnancy related peripheral neuritis, first trimester
    Billable
  60. O26.822
    Pregnancy related peripheral neuritis, second trimester
    Billable
  61. O26.823
    Pregnancy related peripheral neuritis, third trimester
    Billable
  62. O26.829
    Pregnancy related peripheral neuritis, unspecified trimester
    Billable
  63. O26.83
    Pregnancy related renal disease
    Header
    Use additional code 1

    Use additional code

    • code to identify the specific disorder
  64. O26.831
    Pregnancy related renal disease, first trimester
    BillableCC
  65. O26.832
    Pregnancy related renal disease, second trimester
    BillableCC
  66. O26.833
    Pregnancy related renal disease, third trimester
    BillableCC
  67. O26.839
    Pregnancy related renal disease, unspecified trimester
    Billable
  68. O26.84
    Uterine size-date discrepancy complicating pregnancy
    Header
    Excludes1 1

    Excludes1

    • encounter for suspected problem with fetal growth ruled out (Z03.74) Z03.74
  69. O26.841
    Uterine size-date discrepancy, first trimester
    Billable
  70. O26.842
    Uterine size-date discrepancy, second trimester
    Billable
  71. O26.843
    Uterine size-date discrepancy, third trimester
    Billable
  72. O26.849
    Uterine size-date discrepancy, unspecified trimester
    Billable
  73. O26.85
    Spotting complicating pregnancy
    Header
  74. O26.851
    Spotting complicating pregnancy, first trimester
    Billable
  75. O26.852
    Spotting complicating pregnancy, second trimester
    Billable
  76. O26.853
    Spotting complicating pregnancy, third trimester
    Billable
  77. O26.859
    Spotting complicating pregnancy, unspecified trimester
    Billable
  78. O26.86
    Pruritic urticarial papules and plaques of pregnancy (PUPPP)
    Billable
    Inclusion terms 1

    Inclusion terms

    • Polymorphic eruption of pregnancy
  79. O26.87
    Cervical shortening
    Header
    Excludes1 1

    Excludes1

    • encounter for suspected cervical shortening ruled out (Z03.75) Z03.75
  80. O26.872
    Cervical shortening, second trimester
    BillableCC
  81. O26.873
    Cervical shortening, third trimester
    BillableCC
  82. O26.879
    Cervical shortening, unspecified trimester
    BillableCC
  83. O26.89
    Other specified pregnancy related conditions
    Header
    Use additional code 1

    Use additional code

    • code, if applicable, to identify specific condition such as insulin resistance (E88.81-) E88.81
  84. O26.891
    Other specified pregnancy related conditions, first trimester
    Billable
  85. O26.892
    Other specified pregnancy related conditions, second trimester
    Billable
  86. O26.893
    Other specified pregnancy related conditions, third trimester
    Billable
  87. O26.899
    Other specified pregnancy related conditions, unspecified trimester
    Billable
  88. O26.9
    Pregnancy related conditions, unspecified
    Header
  89. O26.90
    Pregnancy related conditions, unspecified, unspecified trimester
    Billable
  90. O26.91
    Pregnancy related conditions, unspecified, first trimester
    Billable
  91. O26.92
    Pregnancy related conditions, unspecified, second trimester
    Billable
  92. O26.93
    Pregnancy related conditions, 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

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

  • Hysteralgia, pregnant uterus → O26.89-
  • Intrauterine contraceptive deviceretention in pregnancy → O26.3-
  • Herpes, herpesvirus, herpeticgestational, gestationis → O26.4-
  • Hypotension (arterial) (constitutional)maternal, syndrome (following labor and delivery) → O26.5-
  • Syndromehypotension, maternal → O26.5-
  • Puerperal, puerperium (complicated by, complications)necrosis, liver (acute) (subacute) (conditions in subcategory K72.0) → O26.63
  • Puerperal, puerperium (complicated by, complications)subluxation of symphysis (pubis) → O26.73
  • Nephritis, nephritic (albuminuric) (azotemic) (congenital) (disseminated) (epithelial) (familial) (focal) (granulomatous) (hemorrhagic) (infantile) (nonsuppurative, excretory) (uremic)complicating pregnancy → O26.83-
  • Nephropathypregnancy-related → O26.83-
  • Discrepancyuterine size date → O26.84-
  • Spots, spotting (in) (of)pregnancy → O26.85-
  • Cervicalshortening (complicating pregnancy) → O26.87-
  • Short, shortening, shortnesscervical (complicating pregnancy) → O26.87-
  • Pregnancy (single) (uterine)complicated NOS → O26.9-
  • Pregnancy (single) (uterine)complicated by (care of) (management affected by)excessive weight gain → O26.0-
  • Abortion (complete) (spontaneous)habitual or recurrentcare in current pregnancy → O26.2-
  • Loss (of)pregnancy, recurrentcare in current pregnancy → O26.2-
  • Pregnancy (single) (uterine)complicated by (care of) (management affected by)recurrent pregnancy loss → O26.2-
  • Pregnancy (single) (uterine)complicated by (care of) (management affected by)hypotension → O26.5-
  • Pregnancy (single) (uterine)complicated by (care of) (management affected by)maternal hypotension syndrome → O26.5-
  • Pregnancy (single) (uterine)complicated by (care of) (management affected by)atrophy (yellow) (acute) liver (subacute) → O26.61-
  • Pregnancy (single) (uterine)complicated by (care of) (management affected by)biliary tract problems → O26.61-
  • Pregnancy (single) (uterine)complicated by (care of) (management affected by)fatty metamorphosis of liver → O26.61-
  • Pregnancy (single) (uterine)complicated by (care of) (management affected by)necrosis, liver (conditions in K72) → O26.61-
  • Puerperal, puerperium (complicated by, complications)disorderbiliary tract → O26.63
  • Puerperal, puerperium (complicated by, complications)disorderliver → O26.63
  • Pregnancy (single) (uterine)complicated by (care of) (management affected by)cholestasis (intrahepatic) → O26.64-
  • Pregnancy (single) (uterine)complicated by (care of) (management affected by)subluxation of symphysis (pubis) → O26.71-
  • Pregnancy (single) (uterine)complicated by (care of) (management affected by)exhaustion → O26.81-
  • Pregnancy (single) (uterine)complicated by (care of) (management affected by)fatigue → O26.81-
  • Pregnancy (single) (uterine)complicated by (care of) (management affected by)peripheral neuritis → O26.82-
  • Pregnancy (single) (uterine)complicated by (care of) (management affected by)glomerular diseases (conditions in N00-N07) → O26.83-
  • Pregnancy (single) (uterine)complicated by (care of) (management affected by)nephropathy NEC → O26.83-
  • Pregnancy (single) (uterine)complicated by (care of) (management affected by)renal disease or failure NEC → O26.83-
  • Pregnancy (single) (uterine)complicated by (care of) (management affected by)size date discrepancy (uterine) → O26.84-
  • Pregnancy (single) (uterine)complicated by (care of) (management affected by)uterine size date discrepancy → O26.84-
  • Pregnancy (single) (uterine)complicated by (care of) (management affected by)spotting → O26.85-
  • Pregnancy (single) (uterine)complicated by (care of) (management affected by)polymorphic eruption of pregnancy → O26.86
  • Pregnancy (single) (uterine)complicated by (care of) (management affected by)pruritic urticarial papules and plaques of pregnancy (PUPPP) → O26.86
  • Pregnancy (single) (uterine)complicated by (care of) (management affected by)PUPPP (pruritic urticarial papules and plaques of pregnancy) → O26.86

18 more, longer entries are not listed; the search box finds them by word.

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

Hierarchy