ICD-10-CM > S00-T88 > S50-S59 > S56 > S56.4 > S56.49 > S56.496 S56.496 Other injury of extensor muscle, fascia and tendon of left ring finger at forearm level Non-Billable/Non-Specific Codes S56.496A..., initial encounterS56.496D..., subsequent encounterS56.496S..., sequela