ICD-10-CM > S00-T88 > S70-S79 > S76 > S76.1 > S76.10 > S76.109 S76.109 Unspecified injury of unspecified quadriceps muscle, fascia and tendon Non-Billable/Non-Specific Codes S76.109A..., initial encounterS76.109D..., subsequent encounterS76.109S..., sequela