All ICD10 Codes

O02.81

Billable
ChapterO00–O9A
Ranksubcategory
Official Description

Inappropriate change in quantitative human chorionic gonadotropin (hCG) in early pregnancy

Metadata & Insights
  • •2026 ICD-10-CM Edition - Effective October 1, 2025.
  • •Billable/specific code (valid for reimbursement).
  • •Chapter 15: Pregnancy, Childbirth and the Puerperium (O00-O9A).

Instructional Notes

Includes
  • Biochemical pregnancy
  • Chemical pregnancy
  • Inappropriate level of quantitative human chorionic gonadotropin (hCG) for gestational age in early pregnancy
General instructions are available for the parent sections:
View CH15 NotesView O00-O08 NotesView O02 NotesView O02.8 Notes

Clinical Hierarchy

CH15Pregnancy, childbirth and the puerperium (O00-O9A)
O00-O08Pregnancy with abortive outcome (O00-O08)
O02Other abnormal products of conception
O02.8Other specified abnormal products of conception
O02.81Inappropriate change in quantitative human chorionic gonadotropin (hCG) in early pregnancy

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to O02.81:

subcategoryO02.8
Other specified abnormal products of conception
View context instructions
categoryO02
Other abnormal products of conception
View context instructions
blockO00-O08
Pregnancy with abortive outcome (O00-O08)
View context instructions
chapterCH15
Pregnancy, childbirth and the puerperium (O00-O9A)
View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to O02.81. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

4 raw paths
Inappropriate2 unique routes
change in quantitative human chorionic gonadotropin (hCG) in early pregnancy→O02.81
level of quantitative human chorionic gonadotropin (hCG) for gestational age in early pregnancy→O02.81
Pregnancy (single) (uterine)2 unique routes
biochemical→O02.81
chemical→O02.81

MS-DRG Classification

2026 v43.1

This code is grouped within the following Diagnosis Related Group(s) for clinical reimbursement:

DRG 817
Other Antepartum Diagnoses with O.R. Procedures with MCC
DRG 818
Other Antepartum Diagnoses with O.R. Procedures with CC
DRG 819
Other Antepartum Diagnoses with O.R. Procedures without CC/MCC
DRG 831
Other Antepartum Diagnoses without O.R. Procedures with MCC
DRG 832
Other Antepartum Diagnoses without O.R. Procedures with CC
DRG 833
Other Antepartum Diagnoses without O.R. Procedures without CC/MCC

Cross Reference

Find Procedures (ICD-10-PCS)

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