ICD-10-CM > S00-T88 > S80-S89 > S83 > S83.2 > S83.23 > S83.239 S83.239 Complex tear of medial meniscus, current injury, unspecified knee Non-Billable/Non-Specific Codes S83.239A..., initial encounterS83.239D..., subsequent encounterS83.239S..., sequela