Version 2024

2024 ICD-10-CM Diagnosis Code O35.1

Maternal care for (suspected) chromosomal abnormality in fetus

ICD-10-CM Code:
O35.1
ICD-10 Code for:
Maternal care for chromosomal abnormality in fetus
Is Billable?
Not Valid for Submission
Code Navigator:

Code Classification

  • Pregnancy, childbirth and the puerperium
    (O00-O9A)
    • Maternal care related to the fetus and amniotic cavity and possible delivery problems
      (O30-O48)
      • Maternal care for known or suspected fetal abnormality and damage
        (O35)

O35.1 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of maternal care for (suspected) chromosomal abnormality in fetus. The code is not specific and is NOT valid for the year 2024 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Specific Coding Applicable to Maternal care for chromosomal abnormality in fetus

Non-specific codes like O35.1 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10-CM codes with a higher level of specificity when coding for maternal care for chromosomal abnormality in fetus:

  • O35.10 for Maternal care for (suspected) chromosomal abnormality in fetus, unspecified - NON-BILLABLE CODE

  • Use O35.10X0 for not applicable or unspecified - BILLABLE CODE

  • Use O35.10X1 for fetus 1 - BILLABLE CODE

  • Use O35.10X2 for fetus 2 - BILLABLE CODE

  • Use O35.10X3 for fetus 3 - BILLABLE CODE

  • Use O35.10X4 for fetus 4 - BILLABLE CODE

  • Use O35.10X5 for fetus 5 - BILLABLE CODE

  • Use O35.10X9 for other fetus - BILLABLE CODE

  • O35.11 for Maternal care for (suspected) chromosomal abnormality in fetus, Trisomy 13 - NON-BILLABLE CODE

  • Use O35.11X0 for not applicable or unspecified - BILLABLE CODE

  • Use O35.11X1 for fetus 1 - BILLABLE CODE

  • Use O35.11X2 for fetus 2 - BILLABLE CODE

  • Use O35.11X3 for fetus 3 - BILLABLE CODE

  • Use O35.11X4 for fetus 4 - BILLABLE CODE

  • Use O35.11X5 for fetus 5 - BILLABLE CODE

  • Use O35.11X9 for other fetus - BILLABLE CODE

  • O35.12 for Maternal care for (suspected) chromosomal abnormality in fetus, Trisomy 18 - NON-BILLABLE CODE

  • Use O35.12X0 for not applicable or unspecified - BILLABLE CODE

  • Use O35.12X1 for fetus 1 - BILLABLE CODE

  • Use O35.12X2 for fetus 2 - BILLABLE CODE

  • Use O35.12X3 for fetus 3 - BILLABLE CODE

  • Use O35.12X4 for fetus 4 - BILLABLE CODE

  • Use O35.12X5 for fetus 5 - BILLABLE CODE

  • Use O35.12X9 for other fetus - BILLABLE CODE

  • O35.13 for Maternal care for (suspected) chromosomal abnormality in fetus, Trisomy 21 - NON-BILLABLE CODE

  • Use O35.13X0 for not applicable or unspecified - BILLABLE CODE

  • Use O35.13X1 for fetus 1 - BILLABLE CODE

  • Use O35.13X2 for fetus 2 - BILLABLE CODE

  • Use O35.13X3 for fetus 3 - BILLABLE CODE

  • Use O35.13X4 for fetus 4 - BILLABLE CODE

  • Use O35.13X5 for fetus 5 - BILLABLE CODE

  • Use O35.13X9 for other fetus - BILLABLE CODE

  • O35.14 for Maternal care for (suspected) chromosomal abnormality in fetus, Turner Syndrome - NON-BILLABLE CODE

  • Use O35.14X0 for not applicable or unspecified - BILLABLE CODE

  • Use O35.14X1 for fetus 1 - BILLABLE CODE

  • Use O35.14X2 for fetus 2 - BILLABLE CODE

  • Use O35.14X3 for fetus 3 - BILLABLE CODE

  • Use O35.14X4 for fetus 4 - BILLABLE CODE

  • Use O35.14X5 for fetus 5 - BILLABLE CODE

  • Use O35.14X9 for other fetus - BILLABLE CODE

  • O35.15 for Maternal care for (suspected) chromosomal abnormality in fetus, sex chromosome abnormality - NON-BILLABLE CODE

  • Use O35.15X0 for not applicable or unspecified - BILLABLE CODE

  • Use O35.15X1 for fetus 1 - BILLABLE CODE

  • Use O35.15X2 for fetus 2 - BILLABLE CODE

  • Use O35.15X3 for fetus 3 - BILLABLE CODE

  • Use O35.15X4 for fetus 4 - BILLABLE CODE

  • Use O35.15X5 for fetus 5 - BILLABLE CODE

  • Use O35.15X9 for other fetus - BILLABLE CODE

  • O35.19 for Maternal care for (suspected) chromosomal abnormality in fetus, other chromosomal abnormality - NON-BILLABLE CODE

  • Use O35.19X0 for not applicable or unspecified - BILLABLE CODE

  • Use O35.19X1 for fetus 1 - BILLABLE CODE

  • Use O35.19X2 for fetus 2 - BILLABLE CODE

  • Use O35.19X3 for fetus 3 - BILLABLE CODE

  • Use O35.19X4 for fetus 4 - BILLABLE CODE

  • Use O35.19X5 for fetus 5 - BILLABLE CODE

  • Use O35.19X9 for other fetus - BILLABLE CODE

Patient Education


Genetic Disorders

Genes are the building blocks of heredity. They are passed from parent to child. They hold DNA, the instructions for making proteins. Proteins do most of the work in cells. They move molecules from one place to another, build structures, break down toxins, and do many other maintenance jobs.

Sometimes there is a mutation, a change in a gene or genes. The mutation changes the gene's instructions for making a protein, so the protein does not work properly or is missing entirely. This can cause a medical condition called a genetic disorder.

You can inherit a gene mutation from one or both parents. A mutation can also happen during your lifetime.

There are three types of genetic disorders:

  • Single-gene disorders, where a mutation affects one gene. Sickle cell anemia is an example.
  • Chromosomal disorders, where chromosomes (or parts of chromosomes) are missing or changed. Chromosomes are the structures that hold our genes. Down syndrome is a chromosomal disorder.
  • Complex disorders, where there are mutations in two or more genes. Often your lifestyle and environment also play a role. Colon cancer is an example.

Genetic tests on blood and other tissue can identify genetic disorders.

NIH: National Library of Medicine


[Learn More in MedlinePlus]

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.