All ICD10 Codes

O35

Non-Billable
ChapterO00–O9A
Rankcategory
Official Description

Maternal care for known or suspected fetal abnormality and damage

Use a more specific code (16 billable, 2 non-billable)
O35.0Maternal care for (suspected) central nervous system malformation in fetushas subcodesO35.1Maternal care for (suspected) chromosomal abnormality in fetushas subcodesO35.2Maternal care for (suspected) hereditary disease in fetusO35.3Maternal care for (suspected) damage to fetus from viral disease in motherO35.4Maternal care for (suspected) damage to fetus from alcoholO35.5Maternal care for (suspected) damage to fetus by drugsO35.6Maternal care for (suspected) damage to fetus by radiationO35.7Maternal care for (suspected) damage to fetus by other medical proceduresO35.8Maternal care for other (suspected) fetal abnormality and damageO35.9Maternal care for (suspected) fetal abnormality and damage, unspecifiedO35.AMaternal care for other (suspected) fetal abnormality and damage, fetal facial anomaliesO35.BMaternal care for other (suspected) fetal abnormality and damage, fetal cardiac anomaliesO35.CMaternal care for other (suspected) fetal abnormality and damage, fetal pulmonary anomaliesO35.DMaternal care for other (suspected) fetal abnormality and damage, fetal gastrointestinal anomaliesO35.EMaternal care for other (suspected) fetal abnormality and damage, fetal genitourinary anomaliesO35.FMaternal care for other (suspected) fetal abnormality and damage, fetal musculoskeletal anomalies of trunkO35.GMaternal care for other (suspected) fetal abnormality and damage, fetal upper extremities anomaliesO35.HMaternal care for other (suspected) fetal abnormality and damage, fetal lower extremities anomalies
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 15: Pregnancy, Childbirth and the Puerperium (O00-O9A).

CH15 Parent Instructions

Excludes1(Not coded here. Use a different code.)
  • supervision of normal pregnancy (Z34.-)
Excludes2(Not included here. Code separately if applicable.)
  • 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

Includes
  • the listed conditions in the fetus as a reason for hospitalization or other obstetric care to the mother, or for termination of pregnancy
Excludes1(Not coded here. Use a different code.)
  • encounter for suspected maternal and fetal conditions ruled out (Z03.7-)
Code Also
  • any associated maternal condition

Clinical Hierarchy

BillableHas subcodes
CH15Pregnancy, childbirth and the puerperium (O00-O9A)
O30-O48Maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)
O35Maternal care for known or suspected fetal abnormality and damageNot billable
O35.0Maternal care for (suspected) central nervous system malformation in fetusSubcodes
O35.1Maternal care for (suspected) chromosomal abnormality in fetusSubcodes
O35.2Maternal care for (suspected) hereditary disease in fetusBillable
O35.3Maternal care for (suspected) damage to fetus from viral disease in motherBillable
O35.4Maternal care for (suspected) damage to fetus from alcoholBillable
O35.5Maternal care for (suspected) damage to fetus by drugsBillable
O35.6Maternal care for (suspected) damage to fetus by radiationBillable
O35.7Maternal care for (suspected) damage to fetus by other medical proceduresBillable
O35.8Maternal care for other (suspected) fetal abnormality and damageBillable
O35.9Maternal care for (suspected) fetal abnormality and damage, unspecifiedBillable
O35.AMaternal care for other (suspected) fetal abnormality and damage, fetal facial anomaliesBillable
O35.BMaternal care for other (suspected) fetal abnormality and damage, fetal cardiac anomaliesBillable
O35.CMaternal care for other (suspected) fetal abnormality and damage, fetal pulmonary anomaliesBillable
O35.DMaternal care for other (suspected) fetal abnormality and damage, fetal gastrointestinal anomaliesBillable
O35.EMaternal care for other (suspected) fetal abnormality and damage, fetal genitourinary anomaliesBillable
O35.FMaternal care for other (suspected) fetal abnormality and damage, fetal musculoskeletal anomalies of trunkBillable
O35.GMaternal care for other (suspected) fetal abnormality and damage, fetal upper extremities anomaliesBillable
O35.HMaternal care for other (suspected) fetal abnormality and damage, fetal lower extremities anomaliesBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to O35:

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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