ICD-10-CM > S00-T88 > S40-S49 > S44 > S44.1 > S44.10 S44.10 Injury of median nerve at upper arm level, unspecified arm Non-Billable/Non-Specific Codes S44.10XA..., initial encounterS44.10XD..., subsequent encounterS44.10XS..., sequela