Q99.0 ICD-10-CA code: Chimera 46,XX/46,XY
Q99.0 is the ICD-10-CA code for “Chimera 46,XX/46,XY” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
Q99.0Chimera 46,XX/46,XY
Short description: Chimera 46 XX/46 XY
ICD-10-CA · Canada · Also written Q990
Index terms
Entries in CIHI’s alphabetical index that lead to Q99.0. Searching the index by the condition the note names is how coders reach this code.
- Hermaphrodite, hermaphroditism (true), 46,XX/46,XY
- Hermaphrodite, hermaphroditism (true), chimera 46,XX/46,XY
Notes for Q99.0
As CIHI prints them, with any note Q99.0 takes from the headings above it.
Includes
- Chimera 46,XX/46,XY true hermaphrodite
Excludes
Conditions classified elsewhere.
- Inborn errors of metabolism (E70-E90)From Chapter 17: Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
Where Q99.0 sits
- 1ChapterChapter 17: Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
- 2Block Q90-Q99Chromosomal abnormalities, not elsewhere classified
- 3Category Q99Other chromosome abnormalities, not elsewhere classified
- 4Valid code Q99.0Chimera 46,XX/46,XY
Source and release
- Data release
- ICD-10-CA · FY 2026–2027
- Effective date
- Apr 1, 2026
- Publisher
- CIHI
This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
What does ICD-10-CA code Q99.0 mean?
Q99.0 is the ICD-10-CA code for “Chimera 46,XX/46,XY” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is Q99.0 in ICD-10-CA?
Q99.0 sits under Q99 Other chromosome abnormalities, not elsewhere classified, within Q90-Q99 Chromosomal abnormalities, not elsewhere classified, within Chapter 17: Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99).
What coding notes apply to Q99.0?
ICD-10-CA lists Includes, Excludes notes for Q99.0, including those from the headings it sits under. They are listed on this page with where each one comes from.
Which ICD-10-CA release does this page use?
It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.