ICD-10-CM > S00-T88 > S40-S49 > S44 > S44.3 S44.3 Injury of axillary nerve Non-Billable/Non-Specific Codes S44.30Injury of axillary nerve, unspecified armS44.30XA..., initial encounterS44.30XD..., subsequent encounterS44.30XS..., sequelaS44.31Injury of axillary nerve, right armS44.31XA..., initial encounterS44.31XD..., subsequent encounterS44.31XS..., sequelaS44.32Injury of axillary nerve, left armS44.32XA..., initial encounterS44.32XD..., subsequent encounterS44.32XS..., sequela