ICD-10-CM > S00-T88 > S50-S59 > S56 > S56.9 > S56.90 > S56.902 S56.902 Unspecified injury of unspecified muscles, fascia and tendons at forearm level, left arm Non-Billable/Non-Specific Codes S56.902A..., initial encounterS56.902D..., subsequent encounterS56.902S..., sequela