Billable / Specific Code
ICD-10-CM O02.81 is the diagnosis code for Inappropriate change in quantitative human chorionic gonadotropin (hCG) in early pregnancy. This code falls under the section "Pregnancy with abortive outcome" within Chapter 15 — Pregnancy, childbirth and the puerperium (O00-O9A). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Understanding where O02.81 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, O02.81 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
O02.81 is the ICD-10-CM diagnosis code for "Inappropriate change in quantitative human chorionic gonadotropin (hCG) in early pregnancy". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of O02.81 is O02.8 ("Other specified abnormal products of conception"). O02.81 provides a more specific classification within this category.
O02.81 is located in Section O00-O08 — "Pregnancy with abortive outcome" within Chapter 15 of the ICD-10-CM Tabular List.
Use O02.81 when the patients documented diagnosis matches "Inappropriate change in quantitative human chorionic gonadotropin (hCG) in early pregnancy" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Inappropriate change in quantitative human chorionic gonadotropin (hCG) in early pregnancy is O02.81.
Yes, O02.81 can be used as a primary diagnosis code since it is billable and specific.
O02.81 is in Chapter 15 of the ICD-10-CM Tabular List.
Yes, O02.81 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.