2027 ICD-10-CM Diagnosis Code O04Complications following (induced) termination of pregnancy

ICD-10-CM Codes›O00-O9A›O00-O08›induced

ICD-10-CM O04
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

O04 is a non-billable ICD-10-CM category code for complications following (induced) termination of pregnancy, so it cannot be submitted on claims. Use a more specific code from this category instead, such as O04.5, O04.6, O04.7, and O04.80.

Code Identity

ICD-10-CM Code
O04
Billable Status
No — Non-Billable Category
Code Describes
Complications following (induced) termination of pregnancy
Short Description
Complications following (induced) termination of pregnancy
Same as the full description in the CMS dataset.
Chapter
O00-O08
Pregnancy with abortive outcome

Code Classification

ChapterO00-O9APregnancy, childbirth and the puerperium
SectionO00-O08Pregnancy with abortive outcome
CategoryinducedComplications following termination of pregnancy (O04)
This CodeO04Complications following (induced) termination of pregnancy

Specific Coding for Complications following (induced) termination of pregnancyOverview

Non-specific codes like O04 require more characters. Use one of these billable codes instead:

  • Use O04.5 for Genital tract and pelvic infection following (induced) termination of pregnancy

  • Use O04.6 for Delayed or excessive hemorrhage following (induced) termination of pregnancy

  • Use O04.7 for Embolism following (induced) termination of pregnancy

  • O04.8 for (Induced) termination of pregnancy with other and unspecified complications

  • Use O04.80 for (Induced) termination of pregnancy with unspecified complications

  • Use O04.81 for Shock following (induced) termination of pregnancy

  • Use O04.82 for Renal failure following (induced) termination of pregnancy

  • Use O04.83 for Metabolic disorder following (induced) termination of pregnancy

  • Use O04.84 for Damage to pelvic organs following (induced) termination of pregnancy

  • Use O04.85 for Other venous complications following (induced) termination of pregnancy

  • Use O04.86 for Cardiac arrest following (induced) termination of pregnancy

  • Use O04.87 for Sepsis following (induced) termination of pregnancy

  • Use O04.88 for Urinary tract infection following (induced) termination of pregnancy

  • Use O04.89 for (Induced) termination of pregnancy with other complications

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to O04: its own notes plus those printed at block O00-O08 and Chapter 15. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

  • complications following (induced) termination of pregnancy

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

From Block O00-O08 Pregnancy with abortive outcome applies to 110 codes
  • continuing pregnancy in multiple gestation after abortion of one fetus or more (O31.1-, O31.3-)
From Chapter 15 (O00-O9A) Pregnancy, childbirth and the puerperium applies to 2,481 codes
  • supervision of normal pregnancy (Z34.-)

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

On O04 itself
  • encounter for elective termination of pregnancy (Z33.2)
  • failed attempted termination of pregnancy (O07.-)
From Chapter 15 (O00-O9A) Pregnancy, childbirth and the puerperium applies to 2,481 codes
  • mental and behavioral disorders associated with the puerperium (F53.-)
  • obstetrical tetanus (A34)
  • postpartum necrosis of pituitary gland (E23.0)
  • puerperal osteomalacia (M83.0)

Use Additional Code

Add a second code, after this one, to fully describe the condition.

From Chapter 15 (O00-O9A) Pregnancy, childbirth and the puerperium applies to 2,481 codes
  • code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.

Notes

General instructions on how these codes are used.

From Chapter 15 (O00-O9A) Pregnancy, childbirth and the puerperium applies to 2,481 codes
  • CODES FROM THIS CHAPTER ARE FOR USE ONLY ON MATERNAL RECORDS, NEVER ON NEWBORN RECORDS
  • Codes from this chapter are for use for conditions related to or aggravated by the pregnancy, childbirth, or by the puerperium (maternal causes or obstetric causes)
  • Trimesters are counted from the first day of the last menstrual period. They are defined as follows:
  • 1st trimester- less than 14 weeks 0 days
  • 2nd trimester- 14 weeks 0 days to less than 28 weeks 0 days
  • 3rd trimester- 28 weeks 0 days until delivery

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name O04, its category, or a range that includes it.

Excludes1 11

These codes carry an Excludes1 note naming O04: they are not reported together with it, unless the two conditions are unrelated.

  • G08 Intracranial and intraspinal phlebitis and thrombophlebitis
    abortion, ectopic or molar pregnancy (O00-O07, O08.7) names O00-O07, which includes this code
  • K65 Peritonitis
    peritonitis with or following abortion or ectopic or molar pregnancy (O00-O07, O08.0) names O00-O07, which includes this code
  • Block N70-N77 Inflammatory diseases of female pelvic organs
    abortion or ectopic or molar pregnancy (O00-O07, O08.0) names O00-O07, which includes this code
  • R34 Anuria and oliguria
    anuria and oliguria complicating abortion or ectopic or molar pregnancy (O00-O07, O08.4) names O00-O07, which includes this code
  • R55 Syncope and collapse
    shock complicating or following abortion or ectopic or molar pregnancy (O00-O07, O08.3) names O00-O07, which includes this code
  • R57 Shock, not elsewhere classified
    shock complicating or following ectopic or molar pregnancy (O00-O07, O08.3) names O00-O07, which includes this code
  • T79.0 Air embolism (traumatic)
    air embolism complicating abortion or ectopic or molar pregnancy (O00-O07, O08.2) names O00-O07, which includes this code
  • T79.1 Fat embolism (traumatic)
    abortion or ectopic or molar pregnancy (O00-O07, O08.2) names O00-O07, which includes this code
  • T79.4 Traumatic shock
    shock complicating abortion or ectopic or molar pregnancy (O00-O07, O08.3) names O00-O07, which includes this code
  • T81.1 Postprocedural shock
    shock following abortion or ectopic or molar pregnancy (O00-O07, O08.3) names O00-O07, which includes this code
  • T81.7 Vascular complications following a procedure, not elsewhere classified
    embolism complicating abortion or ectopic or molar pregnancy (O00-O07, O08.2) names O00-O07, which includes this code

Excludes2 6

These codes carry an Excludes2 note naming O04: its condition is not part of those codes, and both may be reported when the patient has both.

  • D65 Disseminated intravascular coagulation [defibrination syndrome]
    abortion or ectopic or molar pregnancy (O00-O07, O08.1) names O00-O07, which includes this code
  • D68 Other coagulation defects
    coagulation defects complicating abortion or ectopic or molar pregnancy (O00-O07, O08.1) names O00-O07, which includes this code
  • I26 Pulmonary embolism
    pulmonary embolism complicating abortion, ectopic or molar pregnancy (O00-O07, O08.2) names O00-O07, which includes this code
  • K72 Hepatic failure, not elsewhere classified
    hepatic failure complicating abortion or ectopic or molar pregnancy (O00-O07, O08.8) names O00-O07, which includes this code
  • Block N17-N19 Acute kidney failure and chronic kidney disease
    renal failure complicating abortion or ectopic or molar pregnancy (O00-O07, O08.4) names O00-O07, which includes this code
  • Block N30-N39 Other diseases of the urinary system
    abortion or ectopic or molar pregnancy (O00-O07, O08.8) names O00-O07, which includes this code

Code First 6

These codes say to code first a condition named in the note, and O04 is one of the conditions named.

  • I47 Paroxysmal tachycardia
    abortion or ectopic or molar pregnancy (O00-O07, O08.8) names O00-O07, which includes this code
  • I49 Other cardiac arrhythmias
    abortion or ectopic or molar pregnancy (O00-O07, O08.8) names O00-O07, which includes this code
  • I50 Heart failure
    heart failure complicating abortion or ectopic or molar pregnancy (O00-O07, O08.8) names O00-O07, which includes this code
  • I74 Arterial embolism and thrombosis
    embolism and thrombosis complicating abortion or ectopic or molar pregnancy (O00-O07, O08.2) names O00-O07, which includes this code
  • I80 Phlebitis and thrombophlebitis
    if applicable: phlebitis and thrombophlebitis complicating abortion, ectopic or molar pregnancy (O00-O07, O08.7) names O00-O07, which includes this code
  • I82 Other venous embolism and thrombosis
    abortion, ectopic or molar pregnancy (O00-O07, O08.7) names O00-O07, which includes this code

Patient EducationClinical

Abortion

An induced abortion is a procedure to end a pregnancy. It can be done two different ways:

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About O04Overview

What is the ICD-10 code for complications following (induced) termination of pregnancy?

O04 is the ICD-10-CM category for complications following (induced) termination of pregnancy, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

Is O04 (Complications following (induced) termination of pregnancy) a billable code?

No. This is a category header that groups the codes for complications following (induced) termination of pregnancy, and headers cannot be submitted on claims. Claims for complications following (induced) termination of pregnancy need a more specific code from this category, such as O04.5, O04.6, and O04.7.

Can O04 be reported with a code from O31.1?

Not as a rule. The Excludes1 note at block O00-O08, which applies to O04, lists "continuing pregnancy in multiple gestation after abortion of one fetus or more (O31.1-, O31.3-)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).