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Q99.2 - Fragile X chromosome


The ICD 10 Code for Fragile X chromosome is listed as Q99.2.
Additional information concerning this code and description can be found below including ICD 9 crosswalks / GEMS, chapter information, and DRGs where available.

ICD 10 CM Field Value
Diagnosis Code: Q99.2
Description: Fragile X chromosome
  • Fragile X syndrome
Diagnostic Related Groups
(MS-DRG v30.0)
884 - Organic Disturbances & Mental Retardation
Chapter Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
Block Chromosomal abnormalities, not elsewhere classified (Q90-Q99)
Parent Q99 - Other chromosome abnormalities, not elsewhere classified
ICD-9-CM Diagnosis Codes General Equivalence Mappings (GEMS):
ICD 9 Dx Code: 759.83 - Fragile X syndrome
ICD-10-CM Siblings (same level / similar specificity) of Q99.2:
Q99.0 - Chimera 46, XX/46, XY
Q99.1 - 46, XX true hermaphrodite
Q99.8 - Other specified chromosome abnormalities
Q99.9 - Chromosomal abnormality, unspecified