O02.81 – Inappropriate change in quantitative human chorionic gonadotropin (hCG) in early pregnancy

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

Billable code

ICD-10-CM code O02.81
Code
O02.81 (claims format: O0281)
Description
Inappropriate change in quantitative human chorionic gonadotropin (hCG) in early pregnancy
Short description
Inapprop chg quantitav hCG in early 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
O02 › O02.8

Notes for O02.81

Applicable to:
  • Biochemical pregnancy
  • Chemical pregnancy
  • Inappropriate level of quantitative human chorionic gonadotropin (hCG) for gestational age in early pregnancy

Notes inherited from parent codes

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

O02 – Other abnormal products of conception

Excludes1 (not coded here):
  • papyraceous fetus (O31.0-)
Use additional code:
  • code from category O08 to identify any associated complication.

O02.8 – Other specified abnormal products of conception

Excludes1 (not coded here):
  • abnormal products of conception with blighted ovum (O02.0)
  • abnormal products of conception with hydatidiform mole (O01.-)
  • abnormal products of conception with nonhydatidiform mole (O02.0)

Block O00-O08

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

Index terms for O02.81

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in O02.8

Frequently asked questions

What is ICD-10 code O02.81?

O02.81 is the ICD-10-CM code for inappropriate change in quantitative human chorionic gonadotropin (hCG) in early pregnancy, in the block O00-O08 (Pregnancy with abortive outcome).

Is O02.81 a billable code?

Yes. O02.81 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does O02.81 belong to?

It belongs to category O02 – Other abnormal products of conception.

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.