| Full description | Inappropriate change in quantitative human chorionic gonadotropin (hCG) in early pregnancy |
| Billable | Yes |
| Chapter | Chapter 15: Pregnancy, childbirth and the puerperium (O00-O9A) |
| Section | Pregnancy with abortive outcome (O00-O08) |
| Parent code | O02.8 — Other specified abnormal products of conception |