O35.1
Maternal care for (suspected) chromosomal abnormality in fetus
- Release
- FY 2027
- Effective
Hierarchy
Where O35.1 sits in the official hierarchy. Each level is the code it is classified under.
- O35 Parent Maternal care for known or suspected fetal abnormality and damage
- O35.1 This code Maternal care for (suspected) chromosomal abnormality in fetus
Official Coding Notes
Reproduced verbatim from the FY 2027 ICD-10-CM files. Notes labelled as inherited are declared on a parent code and apply here too.
Includes
the listed conditions in the fetus as a reason for hospitalization or other obstetric care to the mother, or for termination of pregnancy
Inherited from O35 — Maternal care for known or suspected fetal abnormality and damage
Code Also
any associated maternal condition
Inherited from O35 — Maternal care for known or suspected fetal abnormality and damage
7th Character
One of the following 7th characters is to be assigned to each code under category O35. 7th character 0 is for single gestations and multiple gestations where the fetus is unspecified. 7th characters 1 through 9 are for cases of multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30, Multiple gestation, must also be assigned when assigning a code from category O35 that has a 7th character of 1 through 9.
Inherited from O35 — Maternal care for known or suspected fetal abnormality and damage
7th Character
0 - not applicable or unspecified
Inherited from O35 — Maternal care for known or suspected fetal abnormality and damage
7th Character
1 - fetus 1
Inherited from O35 — Maternal care for known or suspected fetal abnormality and damage
7th Character
2 - fetus 2
Inherited from O35 — Maternal care for known or suspected fetal abnormality and damage
7th Character
3 - fetus 3
Inherited from O35 — Maternal care for known or suspected fetal abnormality and damage
7th Character
4 - fetus 4
Inherited from O35 — Maternal care for known or suspected fetal abnormality and damage
7th Character
5 - fetus 5
Inherited from O35 — Maternal care for known or suspected fetal abnormality and damage
7th Character
9 - other fetus
Inherited from O35 — Maternal care for known or suspected fetal abnormality and damage
More Specific Codes
7 codes under O35.1
- O35.10 Maternal care for (suspected) chromosomal abnormality in fetus, unspecified Has subcodes
- O35.11 Maternal care for (suspected) chromosomal abnormality in fetus, Trisomy 13 Has subcodes
- O35.12 Maternal care for (suspected) chromosomal abnormality in fetus, Trisomy 18 Has subcodes
- O35.13 Maternal care for (suspected) chromosomal abnormality in fetus, Trisomy 21 Has subcodes
- O35.14 Maternal care for (suspected) chromosomal abnormality in fetus, Turner Syndrome Has subcodes
- O35.15 Maternal care for (suspected) chromosomal abnormality in fetus, sex chromosome abnormality Has subcodes
- O35.19 Maternal care for (suspected) chromosomal abnormality in fetus, other chromosomal abnormality Has subcodes
Version History
How O35.1 appears in each release imported from the official files, newest first.
-
FY 2027 Effective
CurrentMaternal care for (suspected) chromosomal abnormality in fetus
-
FY 2026 Effective
UnchangedMaternal care for (suspected) chromosomal abnormality in fetus
Related Codes
Other codes under O35
- O35.0 Maternal care for (suspected) central nervous system malformation in fetus
- O35.A Maternal care for other (suspected) fetal abnormality and damage, fetal facial anomalies
- O35.B Maternal care for other (suspected) fetal abnormality and damage, fetal cardiac anomalies
- O35.C Maternal care for other (suspected) fetal abnormality and damage, fetal pulmonary anomalies
- O35.D Maternal care for other (suspected) fetal abnormality and damage, fetal gastrointestinal anomalies
- O35.E Maternal care for other (suspected) fetal abnormality and damage, fetal genitourinary anomalies
- O35.F Maternal care for other (suspected) fetal abnormality and damage, fetal musculoskeletal anomalies of trunk
- O35.G Maternal care for other (suspected) fetal abnormality and damage, fetal upper extremities anomalies
- O35.H Maternal care for other (suspected) fetal abnormality and damage, fetal lower extremities anomalies
- O35.2 Maternal care for (suspected) hereditary disease in fetus
- O35.3 Maternal care for (suspected) 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 (suspected) damage to fetus by other medical procedures
- O35.8 Maternal care for other (suspected) fetal abnormality and damage
- O35.9 Maternal care for (suspected) fetal abnormality and damage, unspecified
Codes whose official notes reference O35.1
Data Source
Code information on this page is derived from the FY 2027 ICD-10-CM files published by CDC NCHS and CMS.
- Release
- FY 2027
- Effective
- Source file
- icd10cm-code-descriptions-2027.zip
Official ICD-10-CM source files (opens in a new tab)
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