ICD-10-CM > S00-T88 > S50-S59 > S56 > S56.1 > S56.19 > S56.196 S56.196 Other injury of flexor muscle, fascia and tendon of left ring finger at forearm level Non-Billable/Non-Specific Codes S56.196A..., initial encounterS56.196D..., subsequent encounterS56.196S..., sequela