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Q99.0

Chimera 46, XX/46, XY

Billable FY2026 2025-10-01 → 2026-09-30
Exclusions 1 never code together
Q90-Q99block
Excludes2
  • mitochondrial metabolic disorders (E88.4-)E88.4-

Excludes2 — not included here, but the patient may have both. Code both when documented.

Instructional notes 1
Q99.0code
Inclusion terms
  • Chimera 46, XX/46, XY true hermaphrodite
Index entries leading here 2
  • Hermaphrodite, hermaphroditism (true) Q56.0
  • Chimera 46,XX/46,XY Q99.0
Alongside this code 4 same parent — Q99
Q99.1 46, XX true hermaphrodite Q99.2 Fragile X chromosome Q99.8 Other specified chromosome abnormalities category Q99.9 Chromosomal abnormality, unspecified
Additional references
AHA Coding Clinic® Licence required

Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.

Risk adjustment

Maps to no condition category in any loaded model.

Presence is a property of the code. Untick a model to hide it everywhere.

This code

Billable
yes
Code set
FY2026
Parent
Q99
Block
Q90-Q99
Siblings
4

Present FY2024–FY2027.