O20

Non-Billable

ChapterO00–O9A

Rankcategory

Official Description

Hemorrhage in early pregnancy

Metadata & Insights

•2026 ICD-10-CM Edition - Effective October 1, 2025.
•Non-billable category (requires more specific sub-code).
•Chapter 15: Pregnancy, Childbirth and the Puerperium (O00-O9A).

CH15 Parent Instructions

Excludes1(Not coded here)

supervision of normal pregnancy (Z34.-)

Excludes2(Not included here)

mental and behavioral disorders associated with the puerperium (F53.-)
obstetrical tetanus (A34)
postpartum necrosis of pituitary gland (E23.0)
puerperal osteomalacia (M83.0)

Use Additional Code

code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.

O20-O29 Parent Instructions

Excludes2(Not included here)

maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)
maternal diseases classifiable elsewhere but complicating pregnancy, labor and delivery, and the puerperium (O98-O99)

Instructional Notes

Includes

hemorrhage before completion of 20 weeks gestation

Excludes1(Not coded here)

pregnancy with abortive outcome (O00-O08)

Clinical Hierarchy

CH15Pregnancy, childbirth and the puerperium (O00-O9A)

O20-O29Other maternal disorders predominantly related to pregnancy (O20-O29)

O20Hemorrhage in early pregnancy

O20.0Threatened abortion

O20.8Other hemorrhage in early pregnancy

O20.9Hemorrhage in early pregnancy, unspecified

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to O20:

blockO20-O29

Other maternal disorders predominantly related to pregnancy (O20-O29)

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 O20. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

14 raw paths

Abortion (complete) (spontaneous)2 unique routes

spontaneous

threatened→O20

threatened (spontaneous)→O20

Hemorrhage, hemorrhagic (concealed)3 unique routes

antepartum (with)(3 variants)

before 20 weeks gestation→O20(3 variants)

specified type NEC→O20

threatened abortion→O20

Menstruation1 unique routes

during pregnancy→O20