DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Block · Chapter 15

O00-O08 Pregnancy with abortive outcome (O00-O08)

Block O00-O08 groups 7 categories with 110 billable codes in FY2027. 16 codes are new this year.

Where it sits

  1. Chapter 15 Pregnancy, childbirth and the puerperium (O00-O9A)
  2. O00-O08 Pregnancy with abortive outcome (O00-O08)

Neighbouring blocks

Categories
7
Billable codes
110
CC codes
82
MCC codes
14
HCC V28 codes
0
New FY2027
16

Categories in O00-O08

  • O00

    Ectopic pregnancy

    Cornual gestation or pregnancy → O00.51-

    • 34 billable codes
    • 34 CC
    • 16 new
  • O01

    Hydatidiform mole

    Trophoblastic disease → O01.9

    • 3 billable codes
  • O02

    Other abnormal products of conception

    Breus' mole → O02.0

    • 5 billable codes
  • O03

    Spontaneous abortion

    Miscarriage → O03.9

    • 28 billable codes
    • 19 CC
    • 5 MCC
  • O04

    Complications following (induced) termination of pregnancy

    Abortion (complete) (spontaneous)induced (encounter for)complicated by → O04.80

    • 13 billable codes
    • 9 CC
    • 3 MCC
  • O07

    Failed attempted termination of pregnancy

    Abortion (complete) (spontaneous)attempted (elective) (failed) → O07.4

    • 14 billable codes
    • 10 CC
    • 3 MCC
  • O08

    Complications following ectopic and molar pregnancy

    Shockwith ectopic or molar pregnancy → O08.3

    • 13 billable codes
    • 10 CC
    • 3 MCC

FY2027 changes in O00-O08

  • O00.121 Right interstitial ectopic pregnancy without intrauterine pregnancy New FY2027
  • O00.122 Left interstitial ectopic pregnancy without intrauterine pregnancy New FY2027
  • O00.129 Unspecified interstitial ectopic pregnancy without intrauterine pregnancy New FY2027
  • O00.131 Right interstitial ectopic pregnancy with intrauterine pregnancy New FY2027
  • O00.132 Left interstitial ectopic pregnancy with intrauterine pregnancy New FY2027
  • O00.139 Unspecified interstitial ectopic pregnancy with intrauterine pregnancy New FY2027
  • O00.31 Cesarean scar ectopic pregnancy without intrauterine pregnancy New FY2027
  • O00.32 Cesarean scar ectopic pregnancy with intrauterine pregnancy New FY2027
  • O00.41 Cervical ectopic pregnancy without intrauterine pregnancy New FY2027
  • O00.42 Cervical ectopic pregnancy with intrauterine pregnancy New FY2027
  • O00.511 Right cornual ectopic pregnancy without intrauterine pregnancy New FY2027
  • O00.512 Left cornual ectopic pregnancy without intrauterine pregnancy New FY2027

4 more, and 0 new codes with a 7th character: all FY2027 changes.

Index main terms

  • Abortion (complete) (spontaneous) → O00, O02, O03, O04, O07 (139 entries)
  • Pregnancy (single) (uterine) → O00, O01, O02, O08 (127 entries)
  • Complication(s) (from) (of) → O08 (25 entries)
  • Laceration → O08 (24 entries)
  • Mole (pigmented) → O00, O01, O02 (14 entries)
  • Tear, torn (traumatic) → O08 (14 entries)
  • Perforation, perforated (nontraumatic) (of) → O08 (11 entries)
  • Rupture, ruptured → O00, O08 (11 entries)
  • Embolism (multiple) (paradoxical) → O08 (10 entries)
  • Injury → O08 (9 entries)
  • Shock → O08 (7 entries)
  • Hydatidiform mole (benign) (complicating pregnancy) (delivered) (undelivered) → O01 (5 entries)
  • Blood → O02, O08 (4 entries)
  • Necrosis, necrotic (ischemic) → O08 (4 entries)
  • Retention → O02 (4 entries)

+56 more main terms; the search box finds them by word.

Block instructions

Excludes1

  • continuing pregnancy in multiple gestation after abortion of one fetus or more (O31.1-, O31.3-) O31.1 O31.3

Notes that also apply

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