ICD-10-CM > S00-T88 > S80-S89 > S83 > S83.2 > S83.22 > S83.221 S83.221 Peripheral tear of medial meniscus, current injury, right knee Non-Billable/Non-Specific Codes S83.221A..., initial encounterS83.221D..., subsequent encounterS83.221S..., sequela