Skip to content
Dx

ICD-10-CM 2027 diagnosis code

O35.14X3Maternal care for (suspected) chromosomal abnormality in fetus, Turner Syndrome, fetus 3

✓ Billable / specificRequires 7th characterMaternity · age 9–64Female only

O35.14X3 is a valid, billable ICD-10-CM code for maternal care for (suspected) chromosomal abnormality in fetus, turner syndrome, fetus 3. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Mat care chromsoml abnlt in fetus, Turner Syndrome, fetus 3

Code last changed in FY2023 (effective October 1, 2022). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About O35.14X3

O35.14X3 is the ICD-10-CM diagnosis code for maternal care for (suspected) chromosomal abnormality in fetus, Turner Syndrome, fetus 3. It belongs to category O35 (maternal care for known or suspected fetal abnormality and damage), block O30-O48 (maternal care related to the fetus and amniotic cavity and possible delivery problems) and chapter 15 (pregnancy, childbirth and the puerperium). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

The 7th character "3" means fetus 3.

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 817 (Other Antepartum Diagnoses with O.R. Procedures with MCC, relative weight 2.0534), DRG 818 (Other Antepartum Diagnoses with O.R. Procedures with CC, relative weight 1.2942), DRG 819 (Other Antepartum Diagnoses with O.R. Procedures without CC/MCC, relative weight 0.7739), DRG 831 (Other Antepartum Diagnoses without O.R. Procedures with MCC, relative weight 1.1558), DRG 832 (Other Antepartum Diagnoses without O.R. Procedures with CC, relative weight 0.7585) and DRG 833 (Other Antepartum Diagnoses without O.R. Procedures without CC/MCC, relative weight 0.5002), in MDC 14 (Pregnancy, Childbirth and the Puerperium), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

The Medicare Code Editor treats this as a maternity diagnosis, expected only for patients age 9 through 64.

It is on the CMS list of diagnoses consistent only with female patients (the sex-conflict edit itself was retired in FY2025).

It was added in FY2023, effective October 1, 2022.

7th character

3fetus 3

Other encounter types for O35.14:

Notes that apply from higher levels

Instructions written at a parent level also apply to O35.14X3.

› 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.

MS-DRG v44.0 grouping

All DRGs →

Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.

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
  • FY2023 (effective 10/1/2022): Added
  • No changes since FY2023.

Common questions about O35.14X3

Is O35.14X3 billable?

Yes. O35.14X3 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

What does the "3" at the end of O35.14X3 mean?

It is the 7th character for fetus 3.

Can O35.14X3 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict O35.14X3 as a principal diagnosis.

Is O35.14X3 a CC or MCC?

No. O35.14X3 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does O35.14X3 group to?

O35.14X3 is used in the MS-DRG v44.0 logic for MS-DRG 817 (Other Antepartum Diagnoses with O.R. Procedures with MCC), MS-DRG 818 (Other Antepartum Diagnoses with O.R. Procedures with CC), MS-DRG 819 (Other Antepartum Diagnoses with O.R. Procedures without CC/MCC), MS-DRG 831 (Other Antepartum Diagnoses without O.R. Procedures with MCC), MS-DRG 832 (Other Antepartum Diagnoses without O.R. Procedures with CC) and MS-DRG 833 (Other Antepartum Diagnoses without O.R. Procedures without CC/MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.