O20-O29

Non-Billable
ChapterO00–O9A
Rankblock
Official Description

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

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.

Instructional Notes

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)

Clinical Hierarchy

CH15Pregnancy, childbirth and the puerperium (O00-O9A)
O20-O29Other maternal disorders predominantly related to pregnancy (O20-O29)
O20Hemorrhage in early pregnancy
O21Excessive vomiting in pregnancy
O22Venous complications and hemorrhoids in pregnancy
O23Infections of genitourinary tract in pregnancy
O24Diabetes mellitus in pregnancy, childbirth, and the puerperium
O25Malnutrition in pregnancy, childbirth and the puerperium
O26Maternal care for other conditions predominantly related to pregnancy
O28Abnormal findings on antenatal screening of mother
O29Complications of anesthesia during pregnancy

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to O20-O29:

chapterCH15
Pregnancy, childbirth and the puerperium (O00-O9A)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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