ICD-10-CM > S00-T88 > S40-S49 > S44 > S44.9 > S44.92 S44.92 Injury of unspecified nerve at shoulder and upper arm level, left arm Non-Billable/Non-Specific Codes S44.92XA..., initial encounterS44.92XD..., subsequent encounterS44.92XS..., sequela