U.S. ICD-10-CM · FY 2027

O00 ICD-10-CM Code: Ectopic pregnancy

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Code definition

Official description

O00

Ectopic pregnancy

ICD-10-CM diagnosis code · United States clinical modification

Classification

Where O00 sits

  1. 1

    Chapter 15

    Pregnancy, childbirth and the puerperium (O00-O9A)

  2. 2

    Section

    Pregnancy with abortive outcome (O00-O08)

  3. 3

    Category O00

    Ectopic pregnancy

  4. 4

    Code O00

    Ectopic pregnancy

More specific choices

Codes under O00

O00 is a non-billable category. Choose the child code that best matches the documented diagnosis.

Documentation details

Notes for this code

Inclusion terms

No inclusion terms are listed for O00.

Code first

No “code first” instruction is listed for O00.

Use additional code

  • code from category O08 to identify any associated complication

Excludes1

Conditions that should not be reported together with this code.

No Excludes1 note is listed for O00.

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for O00.

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code O00 mean?

O00 is the FY 2027 U.S. ICD-10-CM code for “Ectopic pregnancy.”

Is O00 a billable or specific ICD-10-CM code?

No. O00 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.

Where is O00 located in ICD-10-CM?

O00 is listed in Chapter 15, Pregnancy, childbirth and the puerperium (O00-O9A), within Pregnancy with abortive outcome (O00-O08) (O00–O08), under category O00, Ectopic pregnancy.

What coding notes are listed for O00?

No inclusion terms are listed for O00 in this reference record. No code-first instruction is listed. Additional-code instructions: code from category O08 to identify any associated complication. No Excludes1 note is listed. No Excludes2 note is listed.

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