O35
Maternal care for known or suspected fetal abnormality and damage
Not billable — category only FY2026 2025-10-01 → 2026-09-30
Exclusions 6 never code together
7th character 7
0 not applicable or unspecified
1 fetus 1
2 fetus 2
3 fetus 3
4 fetus 4
5 fetus 5
9 other fetus
Instructional notes 9
O35code
Includes
- the listed conditions in the fetus as a reason for hospitalization or other obstetric care to the mother, or for termination of pregnancy
Code also
- any associated maternal condition
O00-O9Achapter
Notes
- CODES FROM THIS CHAPTER ARE FOR USE ONLY ON MATERNAL RECORDS, NEVER ON NEWBORN RECORDS
- Codes from this chapter are for use for conditions related to or aggravated by the pregnancy, childbirth, or by the puerperium (maternal causes or obstetric causes)
- Trimesters are counted from the first day of the last menstrual period. They are defined as follows:
- 1st trimester- less than 14 weeks 0 days
- 2nd trimester- 14 weeks 0 days to less than 28 weeks 0 days
- 3rd trimester- 28 weeks 0 days until delivery
Use additional code
- code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.Z3A
Index entries leading here filed at null
No alphabetic index entry points at this code.
Subordinate codes 18
O35.0 Maternal care for (suspected) cnsl malformation in fetus O35.1 Maternal care for chromosomal abnormality in fetus O35.A Mat care other fetal abnlt and damage, fetal facial anomal O35.B Mat care other fetal abnlt and damage, fetal cardiac anomal O35.C Mat care other fetal abnlt and damage, fetal pulm anomal O35.D Mat care other fetal abnlt and damage, fetal GI anomalies O35.E Mat care other fetal abnlt and damage, fetal GU anomalies O35.F Mat care other fetl abnlt and damag, fetl ms anomal of trunk O35.G Mat care other fetl abnlt and damag, fetl upper extrm anomal O35.H Mat care other fetal abnlt and damag, fetal low extrm anomal O35.2 Maternal care for (suspected) hereditary disease in fetus O35.3 Matern care for damage to fetus from viral disease in mother O35.4 Maternal care for (suspected) damage to fetus from alcohol O35.5 Maternal care for (suspected) damage to fetus by drugs O35.6 Maternal care for (suspected) damage to fetus by radiation O35.7 Maternal care for damage to fetus by oth medical procedures O35.8 Maternal care for oth fetal abnormality and damage O35.9 Maternal care for fetal abnormality and damage, unsp
Medications 1
MED-RT files conditions by MeSH, which carves the world differently from ICD-10. These are name matches on this code's description, offered as candidates — not as an assertion that they are this code.
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.