ICD-10-CM > S00-T88 > S50-S59 > S54 > S54.1 S54.1 Injury of median nerve at forearm level Non-Billable/Non-Specific Applicable To Injury of median nerve NOS Codes S54.10Injury of median nerve at forearm level, unspecified armS54.10XA..., initial encounterS54.10XD..., subsequent encounterS54.10XS..., sequelaS54.11Injury of median nerve at forearm level, right armS54.11XA..., initial encounterS54.11XD..., subsequent encounterS54.11XS..., sequelaS54.12Injury of median nerve at forearm level, left armS54.12XA..., initial encounterS54.12XD..., subsequent encounterS54.12XS..., sequela