ICD-10 Guide

Q99.2

Name: ICD-10-CM Medical Diagnosis Codes
Creator: Centers for Medicare & Medicaid Services
License: https://www.cms.gov/medicare/coding/icd10

Billable

Fragile X chromosome

BILLABLE STATUSYes

IMPLEMENTATION DATEOctober 1, 2015

LAST UPDATED08/26/2025

Code Description

ICD-10 Q99.2 is a billable code used to indicate a diagnosis of fragile x chromosome.

Key Diagnostic Point:

Fragile X chromosome

Q99.2

Code Description

Key Diagnostic Point:

Related ICD-10 Codes

Q99.2

Code Description

Key Diagnostic Point:

Related ICD-10 Codes