Other sex chromosome abnormalities, female phenotype, not elsewhere classified (Q97) ICD-10-CM
The Q97 code range covers other sex chromosome abnormalities, female phenotype, not elsewhere classified with 7 ICD-10-CM diagnosis codes. 6 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
- Turner's syndrome Q96
Codes in the Q97 Range 7 codes · 6 billable
- Q97 Other sex chromosome abnormalities, female phenotype, not elsewhere classifiedNon-billable
- Q97.0 Karyotype 47, XXX
- Q97.1 Female with more than three X chromosomes
- Q97.2 Mosaicism, lines with various numbers of X chromosomes
- Q97.3 Female with 46, XY karyotype
- Q97.8 Other specified sex chromosome abnormalities, female phenotype
- Q97.9 Sex chromosome abnormality, female phenotype, unspecified
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the Q97 range.
Gigantism
The condition of accelerated and excessive GROWTH in children or adolescents who are exposed to excess HUMAN GROWTH HORMONE before the closure of EPIPHYSES. It is usually caused by somatotroph hyperplasia or a GROWTH HORMONE-SECRETING PITUITARY ADENOMA. These patients are of abnormally tall stature, more than 3 standard deviations above normal mean height for age.
Sotos Syndrome
Congenital or postnatal overgrowth syndrome most often in height and occipitofrontal circumference with variable delayed motor and cognitive development. Other associated features include advanced bone age, seizures, NEONATAL JAUNDICE; HYPOTONIA; and SCOLIOSIS. It is also associated with increased risk of developing neoplasms in adulthood. Mutations in the NSD1 protein and its HAPLOINSUFFICIENCY are associated with the syndrome.
About the Q97 Code Range
The ICD-10 code Q97 covers various rare sex chromosome abnormalities in individuals with a female phenotype that are not classified elsewhere. These codes identify different chromosomal patterns, such as 47, XXX (Q97.0) known as Triple X syndrome, and other complex variations involving multiple X chromosomes or mosaicism.
This section is used to document conditions like Trisomy X syndrome (Q97.0), where there are three X chromosomes; Four or more X chromosomes (Q97.1), sometimes called Four X or Penta X syndrome; and mosaicism with different X chromosome combinations (Q97.2). It also includes females with a 46,XY karyotype (Q97.3), a disorder involving sex development variations despite a typically male chromosome pattern. Other specified abnormalities (Q97.8) and unspecified female sex chromosome anomalies (Q97.9) are also covered. This classification helps medical coders precisely capture and report chromosomal disorders related to female phenotypes, facilitating accurate diagnosis and research.
Questions About This Page
How many billable codes are in the Q97 range?
Of the 7 codes in this range, 6 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the Q97 range classify?
The range classifies other sex chromosome abnormalities, female phenotype, not elsewhere classified. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
