ICD-10-CM > S00-T88 > S50-S59 > S54 > S54.8 > S54.8X S54.8X Injury of other nerves at forearm level Non-Billable/Non-Specific Codes S54.8X1Injury of other nerves at forearm level, right armS54.8X1A..., initial encounterS54.8X1D..., subsequent encounterS54.8X1S..., sequelaS54.8X2Injury of other nerves at forearm level, left armS54.8X2A..., initial encounterS54.8X2D..., subsequent encounterS54.8X2S..., sequelaS54.8X9Injury of other nerves at forearm level, unspecified armS54.8X9A..., initial encounterS54.8X9D..., subsequent encounterS54.8X9S..., sequela