2027 ICD-10-CM Diagnosis Code O08Complications following ectopic and molar pregnancy

ICD-10-CM Codes›O00-O9A›O00-O08›O08

ICD-10-CM O08
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

O08 is a non-billable ICD-10-CM category code for complications following ectopic and molar pregnancy, so it cannot be submitted on claims. Use a more specific code from this category instead, such as O08.0, O08.1, O08.2, and O08.3.

Code Identity

ICD-10-CM Code
O08
Billable Status
No — Non-Billable Category
Code Describes
Complications following ectopic and molar pregnancy
Short Description
Complications following ectopic and molar 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
CategoryO08Complications following ectopic and molar pregnancy
This CodeO08Complications following ectopic and molar pregnancy

Specific Coding for Complications following ectopic and molar pregnancyOverview

Non-specific codes like O08 require more characters. Use one of these billable codes instead:

  • Use O08.0 for Genital tract and pelvic infection following ectopic and molar pregnancy

  • Use O08.1 for Delayed or excessive hemorrhage following ectopic and molar pregnancy

  • Use O08.2 for Embolism following ectopic and molar pregnancy

  • Use O08.3 for Shock following ectopic and molar pregnancy

  • Use O08.4 for Renal failure following ectopic and molar pregnancy

  • Use O08.5 for Metabolic disorders following an ectopic and molar pregnancy

  • Use O08.6 for Damage to pelvic organs and tissues following an ectopic and molar pregnancy

  • Use O08.7 for Other venous complications following an ectopic and molar pregnancy

  • O08.8 for Other complications following an ectopic and molar pregnancy

  • Use O08.81 for Cardiac arrest following an ectopic and molar pregnancy

  • Use O08.82 for Sepsis following ectopic and molar pregnancy

  • Use O08.83 for Urinary tract infection following an ectopic and molar pregnancy

  • Use O08.89 for Other complications following an ectopic and molar pregnancy

  • Use O08.9 for Unspecified complication following an ectopic and molar pregnancy

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to O08: 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.

Applicable To

Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.

  • This category is for use with categories O00-O02 to identify any associated complications

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.

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 O08, its category, or a range that includes it.

Use Additional Code 3

These codes say to use an additional code from the note, and O08 is one of the codes named.

  • O00 Ectopic pregnancy
    code from category O08 to identify any associated complication
  • O01 Hydatidiform mole
    code from category O08 to identify any associated complication.
  • O02 Other abnormal products of conception
    code from category O08 to identify any associated complication.

Patient EducationClinical

Ectopic Pregnancy

The uterus, or womb, is the place where a fetus grows during pregnancy. In an ectopic pregnancy, the fertilized egg grows in the wrong place outside the uterus. It usually occurs in the fallopian tubes. These tubes carry eggs from the ovaries to the uterus.

The full article covers:

  • What is an ectopic pregnancy?
  • What increases my risk of an ectopic pregnancy?
  • What are the symptoms of an ectopic pregnancy?
  • How is an ectopic pregnancy diagnosed?
  • What is the treatment for an ectopic pregnancy?

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 O08Overview

What is the ICD-10 code for complications following ectopic and molar pregnancy?

O08 is the ICD-10-CM category for complications following ectopic and molar pregnancy, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

Is O08 (Complications following ectopic and molar pregnancy) a billable code?

No. This is a category header that groups the codes for complications following ectopic and molar pregnancy, and headers cannot be submitted on claims. Claims for complications following ectopic and molar pregnancy need a more specific code from this category, such as O08.0, O08.1, and O08.2.

Can O08 be reported with a code from O31.1?

Not as a rule. The Excludes1 note at block O00-O08, which applies to O08, 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).