ICD-10-CM > S00-T88 > S00-S09 > S01 > S01.4 > S01.40 > S01.402 S01.402 Unspecified open wound of left cheek and temporomandibular area Non-Billable/Non-Specific Codes S01.402A..., initial encounterS01.402D..., subsequent encounterS01.402S..., sequela