ICD-10-CM 2027 diagnosis code

O00.20Ovarian pregnancy without intrauterine pregnancy

Not billable — use a more specific code

O00.20 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it.

Code last changed in FY2018 (effective October 1, 2017). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About O00.20

O00.20 is the ICD-10-CM diagnosis code for ovarian pregnancy without intrauterine pregnancy. It belongs to category O00 (ectopic pregnancy), block O00-O08 (pregnancy with abortive outcome) and chapter 15 (pregnancy, childbirth and the puerperium). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.

Within O00.2, choose O00.20 (without intrauterine pregnancy) only when documentation doesn't support a more specific option: with intrauterine pregnancy (O00.21).

To report this condition, pick the subcode that matches the documentation: O00.201 (pregnancy), O00.202 (pregnancy) and O00.209 (pregnancy).

Use an additional code from category O08 to identify any associated complication.

It was added in FY2017, effective October 1, 2016, and changed in FY2018.

Specific codes under O00.20

Coding notes

Applicable toConditions and synonyms classified to this code

Ovarian pregnancy NOS

Notes that apply from higher levels

Instructions written at a parent level also apply to O00.20.

› From O00 Ectopic pregnancy

Includes

ruptured ectopic pregnancy

Use additional code

code from category O08 to identify any associated complication

Broader instructions also apply from O00-O08 Pregnancy with abortive outcome and Chapter 15: Pregnancy, childbirth and the puerperium.

Alphabetic index entries

2 entries

Terms in the official ICD-10-CM index that lead to O00.20.

Code history

2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027

FY2017 (effective 10/1/2016): Added
FY2018 (effective 10/1/2017): Expanded — no longer billable

Common questions about O00.20

Is O00.20 billable?: No. O00.20 is a header code. Report one of its more specific subcodes instead.