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ICD-10-CM 2027 diagnosis code

Q96.2Karyotype 46, X with abnormal sex chromosome, except iso (Xq)

✓ Billable / specificPOA exemptFemale only

Q96.2 is a valid, billable ICD-10-CM code for karyotype 46, x with abnormal sex chromosome, except iso (xq). It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Karyotype 46, X w abnormal sex chromosome, except iso (Xq)

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About Q96.2

Q96.2 is the ICD-10-CM diagnosis code for karyotype 46, X with abnormal sex chromosome, except iso (Xq). It belongs to category Q96 (Turner's syndrome), block Q90-Q99 (chromosomal abnormalities, not elsewhere classified) and chapter 17 (congenital malformations, deformations, chromosomal abnormalities, and genetic disorders). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within Q96 (Turner's syndrome), Q96.2 is specifically for karyotype 46, X with abnormal sex chromosome, except iso (Xq). Related codes cover karyotype 45, X (Q96.0), karyotype 46, X iso (Xq) (Q96.1), mosaicism, 45, X/46, XX or XY (Q96.3), mosaicism, 45, X/other cell line(s) with abnormal sex chromosome (Q96.4), other variants of Turner's syndrome (Q96.8) and unspecified (Q96.9).

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 742 (Uterine and Adnexa Procedures for Non-Malignancy with CC/MCC, relative weight 1.8456), DRG 743 (Uterine and Adnexa Procedures for Non-Malignancy without CC/MCC, relative weight 1.2974), DRG 760 (Menstrual and Other Female Reproductive System Disorders with CC/MCC, relative weight 1.0129) and DRG 761 (Menstrual and Other Female Reproductive System Disorders without CC/MCC, relative weight 0.7041), in MDC 13 (Diseases and Disorders of the Female Reproductive System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

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

It is exempt from present-on-admission (POA) reporting, so no POA indicator is required.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as 758.6 (Gonadal dysgenesis).

Coding notes

Applicable toConditions and synonyms classified to this code
  • Karyotype 46, X with abnormal sex chromosome, except isochromosome Xq

Notes that apply from higher levels

Instructions written at a parent level also apply to Q96.2.

› From Q96 Turner's syndrome
Excludes1

Broader instructions also apply from Q90-Q99 Chromosomal abnormalities, not elsewhere classified and Chapter 17: Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders.

Alphabetic index entries

1 entries

Terms in the official ICD-10-CM index that lead to Q96.2.

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.

ICD-9-CM equivalent

Converter →
  • 758.6Gonadal dysgenesisapproximate

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

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)
  • No changes since FY2016.

Common questions about Q96.2

Is Q96.2 billable?

Yes. Q96.2 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can Q96.2 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict Q96.2 as a principal diagnosis.

Is Q96.2 a CC or MCC?

No. Q96.2 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does Q96.2 group to?

Q96.2 is used in the MS-DRG v44.0 logic for MS-DRG 742 (Uterine and Adnexa Procedures for Non-Malignancy with CC/MCC), MS-DRG 743 (Uterine and Adnexa Procedures for Non-Malignancy without CC/MCC), MS-DRG 760 (Menstrual and Other Female Reproductive System Disorders with CC/MCC) and MS-DRG 761 (Menstrual and Other Female Reproductive System Disorders without CC/MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.

What is the ICD-9 code for Q96.2?

The CMS General Equivalence Mappings map Q96.2 to ICD-9-CM 758.6.