ICD-10-CM > S00-T88 > S50-S59 > S56 > S56.1 > S56.19 > S56.192 S56.192 Other injury of flexor muscle, fascia and tendon of left index finger at forearm level Non-Billable/Non-Specific Codes S56.192A..., initial encounterS56.192D..., subsequent encounterS56.192S..., sequela