Q97.8 ICD-10-CA code: Other specified sex chromosome abnormalities, female phenotype
Q97.8 is the ICD-10-CA code for “Other specified sex chromosome abnormalities, female phenotype” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
Q97.8Other specified sex chromosome abnormalities, female phenotype
Short description: Oth spec sex chromsm abn femle phntype
ICD-10-CA · Canada · Also written Q978
Index terms
Entries in CIHI’s alphabetical index that lead to Q97.8. Searching the index by the condition the note names is how coders reach this code.
- Sex, chromosome mosaics
- Mosaicism, mosaic (autosomal) (chromosomal), sex chromosome, female NEC
- Accessory (congenital), chromosome(s) NEC (non sex), sex, female phenotype
- Absence (organ or part) (complete or partial), sex chromosome, female phenotype
- Abnormal, abnormality, abnormalities, chromosome, chromosomal, sex, female phenotype, specified NEC
- Anomaly, anomalous (congenital) (unspecified type), chromosomes, chromosomal, sex, female phenotype, specified NEC
Notes for Q97.8
As CIHI prints them, with any note Q97.8 takes from the headings above it.
Excludes
Conditions classified elsewhere.
- Turner's syndrome (Q96.-)From Q97 Other sex chromosome abnormalities, female phenotype, not elsewhere classified
- Inborn errors of metabolism (E70-E90)From Chapter 17: Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
Where Q97.8 sits
- 1ChapterChapter 17: Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
- 2Block Q90-Q99Chromosomal abnormalities, not elsewhere classified
- 3Category Q97Other sex chromosome abnormalities, female phenotype, not elsewhere classified
- 4Valid code Q97.8Other specified sex chromosome abnormalities, female phenotype
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 Q97.8 mean?
Q97.8 is the ICD-10-CA code for “Other specified sex chromosome abnormalities, female phenotype” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is Q97.8 in ICD-10-CA?
Q97.8 sits under Q97 Other sex chromosome abnormalities, female phenotype, 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 Q97.8?
ICD-10-CA lists Excludes notes for Q97.8, 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.