Coding and coverage · ICD-10-CM

Q96 Turner's syndrome

Not billable (header)Chapter 17

Report one of the more specific codes below.

Check coverage with this diagnosis

Codes under this one

  • Q96.0 Karyotype 45, X
  • Q96.1 Karyotype 46, X iso (Xq)
  • Q96.2 Karyotype 46, X with abnormal sex chromosome, except iso (Xq)
  • Q96.3 Mosaicism, 45, X/46, XX or XY
  • Q96.4 Mosaicism, 45, X/other cell line(s) with abnormal sex chromosome
  • Q96.8 Other variants of Turner's syndrome
  • Q96.9 Turner's syndrome, unspecified

Instructional notes

Chapter 17

Excludes2Not included here: the patient may have both; report both when both are present.
  • inborn errors of metabolism (E70-E88)
Notes
  • Codes from this chapter are not for use on maternal records

Section Q90-Q99

Excludes2Not included here: the patient may have both; report both when both are present.
  • mitochondrial metabolic disorders (E88.4-)

This code

Excludes1Not coded here: never report with this code, except when the two conditions are unrelated.

Chapter 17: Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA1) · Q90-Q99 Chromosomal abnormalities, not elsewhere classified (Q90-Q99)

Source: ICD-10-CM FY 2027 code descriptions and tabular list (CMS and CDC National Center for Health Statistics), effective 2026-10-01 through 2027-09-30 · CMS ICD-10 files. HCC mapping: CMS-HCC V28, payment year 2027. As of 2026-11-04.

Coverage and payment depend on the claim details; confirm with the Medicare Administrative Contractor.