O00.522 – Left cornual ectopic pregnancy with intrauterine pregnancy

ICD-10-CM 2027 diagnosis code · Pregnancy with abortive outcome

Billable code New in 2027

ICD-10-CM code O00.522
Code
O00.522 (claims format: O00522)
Description
Left cornual ectopic pregnancy with intrauterine pregnancy
Billable
Yes – valid for HIPAA-covered transactions
Valid for
Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter
15. Pregnancy, childbirth and the puerperium (O00-O9A)
Block
O00-O08 Pregnancy with abortive outcome
Parent codes
O00 › O00.5 › O00.52

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

O00 – Ectopic pregnancy

Includes:
  • ruptured ectopic pregnancy
Use additional code:
  • code from category O08 to identify any associated complication

Block O00-O08

Excludes1 (not coded here):
  • continuing pregnancy in multiple gestation after abortion of one fetus or more (O31.1-, O31.3-)

Related codes in O00.52

Frequently asked questions

What is ICD-10 code O00.522?

O00.522 is the ICD-10-CM code for left cornual ectopic pregnancy with intrauterine pregnancy, in the block O00-O08 (Pregnancy with abortive outcome).

Is O00.522 a billable code?

Yes. O00.522 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does O00.522 belong to?

It belongs to category O00 – Ectopic pregnancy.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.