ICD-10-CM 2027
ICD-10 code for sex chromosome mosaicism
Choose a code from the options below based on the documentation.
From the official ICD-10-CM alphabetic index entry “Mosaicism, mosaic (autosomal) (chromosomal) › sex chromosome”. Page updated September 29, 2026.
About coding sex chromosome mosaicism
The official ICD-10-CM index doesn't give a single default code for sex chromosome mosaicism; the code depends on the details below.