O00
Non-Billable

Ectopic pregnancy

Non-Billable / Non-Specific Code

What is Ectopic pregnancy?

ICD-10-CM O00 is the diagnosis code for Ectopic pregnancy. This code falls under the section "Pregnancy with abortive outcome" within Chapter 15 — Pregnancy, childbirth and the puerperium (O00-O9A). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.

Coding Guidelines for O00

Always refer to the official ICD-10-CM Tabular List for complete coding guidelines. Ensure documentation supports the specificity of the code selected. When in doubt, consult a certified medical coder or the latest CMS guidelines.

ICD-10-CM Code Hierarchy

Understanding where O00 sits in the ICD-10-CM classification helps ensure proper coding:

Sub-Codes 5 entries
O00.0Abdominal pregnancyNon-BillableO00.00Abdominal pregnancy without intrauterine pregnancyBillableO00.01Abdominal pregnancy with intrauterine pregnancyBillableO00.1Tubal pregnancyNon-BillableO00.10Tubal pregnancy without intrauterine pregnancyNon-BillableO00.101Right tubal pregnancy without intrauterine pregnancyBillableO00.102Left tubal pregnancy without intrauterine pregnancyBillableO00.109Unspecified tubal pregnancy without intrauterine pregnancyBillableO00.11Tubal pregnancy with intrauterine pregnancyNon-BillableO00.111Right tubal pregnancy with intrauterine pregnancyBillableO00.112Left tubal pregnancy with intrauterine pregnancyBillableO00.119Unspecified tubal pregnancy with intrauterine pregnancyBillableO00.2Ovarian pregnancyNon-BillableO00.20Ovarian pregnancy without intrauterine pregnancyNon-BillableO00.201Right ovarian pregnancy without intrauterine pregnancyBillableO00.202Left ovarian pregnancy without intrauterine pregnancyBillableO00.209Unspecified ovarian pregnancy without intrauterine pregnancyBillableO00.21Ovarian pregnancy with intrauterine pregnancyNon-BillableO00.211Right ovarian pregnancy with intrauterine pregnancyBillableO00.212Left ovarian pregnancy with intrauterine pregnancyBillableO00.219Unspecified ovarian pregnancy with intrauterine pregnancyBillableO00.8Other ectopic pregnancyNon-BillableO00.80Other ectopic pregnancy without intrauterine pregnancyBillableO00.81Other ectopic pregnancy with intrauterine pregnancyBillableO00.9Ectopic pregnancy, unspecifiedNon-BillableO00.90Unspecified ectopic pregnancy without intrauterine pregnancyBillableO00.91Unspecified ectopic pregnancy with intrauterine pregnancyBillable
Related Codes

Frequently Asked Questions

Is O00 a billable ICD-10-CM code?

No, O00 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.

What does O00 mean?

O00 is the ICD-10-CM diagnosis code for "Ectopic pregnancy". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.

What section is O00 in?

O00 is located in Section O00-O08 — "Pregnancy with abortive outcome" within Chapter 15 of the ICD-10-CM Tabular List.

What are the sub-codes of O00?

O00 has 5 sub-code(s) that provide more specific detail: O00.0, O00.1, O00.2, O00.8, O00.9.

When should I use O00?

Use O00 when the patients documented diagnosis matches "Ectopic pregnancy" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.

People Also Ask

What is the ICD-10 code for Ectopic pregnancy?

The ICD-10-CM code for Ectopic pregnancy is O00.

Can O00 be used for primary diagnosis?

No, O00 is non-billable. Use a more specific sub-code for primary diagnosis billing.

What chapter is O00 in?

O00 is in Chapter 15 of the ICD-10-CM Tabular List.

Is O00 valid for 2026?

Yes, O00 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.

See Also

← PreviousN99.89Other postprocedural complications and disorders of genitourinary systemNext →O00.0Abdominal pregnancy
Code Details
O00
Ectopic pregnancy
Non-Billable / Non-Specific Code
15 — Pregnancy, childbirth and the puerperium (O00-O9A)
O00-O08 — Pregnancy with abortive outcome
2026 ICD-10-CM