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ICD-10-CM 2027 diagnosis code

O35.1XX9Maternal care for (suspected) chromosomal abnormality in fetus, other fetus

Deleted in FY2023Requires 7th character

O35.1XX9 was removed from ICD-10-CM in FY2023 and can't be reported for dates of service on or after October 1, 2022.Short description: Maternal care for chromosomal abnormality in fetus, oth

Code last changed in FY2016 (effective October 1, 2015). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About O35.1XX9

O35.1XX9 was the ICD-10-CM code for maternal care for (suspected) chromosomal abnormality in fetus, other fetus until it was deleted in FY2023. It can't be reported for dates of service on or after October 1, 2022.

7th character

9other fetus

Other encounter types for O35.1:

Notes that apply from higher levels

Instructions written at a parent level also apply to O35.1XX9.

› From O35 Maternal care for known or suspected fetal abnormality and damage
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
  • encounter for suspected maternal and fetal conditions ruled out (Z03.7-)
Code also
  • any associated maternal condition

Broader instructions also apply from Chapter 15: Pregnancy, childbirth and the puerperium.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • FY2023 (effective 10/1/2022): Deleted

Common questions about O35.1XX9

Is O35.1XX9 billable?

No. O35.1XX9 was deleted in FY2023.