O02.81
✓ Billable
Inappropriate change in quantitative human chorionic gonadotropin (hCG) in early pregnancy
ICD-10-CM · FY2026 · Pregnancy, Childbirth and the Puerperium
Code
O02.81
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
Pregnancy, Childbirth and the Puerperium
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code O02.81?
ICD-10-CM code O02.81 represents Inappropriate change in quantitative human chorionic gonadotropin (hCG) in early pregnancy. It is a billable diagnosis code in the Pregnancy, Childbirth and the Puerperium chapter, effective October 1, 2025 – September 30, 2026.
Is O02.81 billable?
Yes. O02.81 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is O02.81 in?
O02.81 belongs to the Pregnancy, Childbirth and the Puerperium chapter (O00–O9A) of ICD-10-CM.
Related codes in the O02 category
O02
Other abnormal products of conception
Non-billable
O02.0
Blighted ovum and nonhydatidiform mole
Billable
O02.1
Missed abortion
Billable
O02.8
Other specified abnormal products of conception
Non-billable
O02.9
Abnormal product of conception, unspecified
Billable
O02.89
Other abnormal products of conception
Billable
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