ICD-10-CM > S00-T88 > S60-S69 > S66 > S66.3 > S66.30 S66.30 Unspecified injury of extensor muscle, fascia and tendon of other and unspecified finger at wrist and hand level Non-Billable/Non-Specific Codes S66.300Unspecified injury of extensor muscle, fascia and tendon of right index finger at wrist and hand levelS66.300A..., initial encounterS66.300D..., subsequent encounterS66.300S..., sequelaS66.301Unspecified injury of extensor muscle, fascia and tendon of left index finger at wrist and hand levelS66.301A..., initial encounterS66.301D..., subsequent encounterS66.301S..., sequelaS66.302Unspecified injury of extensor muscle, fascia and tendon of right middle finger at wrist and hand levelS66.302A..., initial encounterS66.302D..., subsequent encounterS66.302S..., sequelaS66.303Unspecified injury of extensor muscle, fascia and tendon of left middle finger at wrist and hand levelS66.303A..., initial encounterS66.303D..., subsequent encounterS66.303S..., sequelaS66.304Unspecified injury of extensor muscle, fascia and tendon of right ring finger at wrist and hand levelS66.304A..., initial encounterS66.304D..., subsequent encounterS66.304S..., sequelaS66.305Unspecified injury of extensor muscle, fascia and tendon of left ring finger at wrist and hand levelS66.305A..., initial encounterS66.305D..., subsequent encounterS66.305S..., sequelaS66.306Unspecified injury of extensor muscle, fascia and tendon of right little finger at wrist and hand levelS66.306A..., initial encounterS66.306D..., subsequent encounterS66.306S..., sequelaS66.307Unspecified injury of extensor muscle, fascia and tendon of left little finger at wrist and hand levelS66.307A..., initial encounterS66.307D..., subsequent encounterS66.307S..., sequelaS66.308Unspecified injury of extensor muscle, fascia and tendon of other finger at wrist and hand levelS66.308A..., initial encounterS66.308D..., subsequent encounterS66.308S..., sequelaS66.309Unspecified injury of extensor muscle, fascia and tendon of unspecified finger at wrist and hand levelS66.309A..., initial encounterS66.309D..., subsequent encounterS66.309S..., sequela