ICD-10-CM > G00-G99 > G89-G99 > G96 > G96.1 > G96.19 > G96.191 G96.191 Perineural cyst Billable/Specific Copy Code Copy Description Applicable To Cervical nerve root cystLumbar nerve root cystSacral nerve root cystTarlov cystThoracic nerve root cyst