ICD-10-CM > S00-T88 > S00-S09 > S01 > S01.4 > S01.40 S01.40 Unspecified open wound of cheek and temporomandibular area Non-Billable/Non-Specific Codes S01.401Unspecified open wound of right cheek and temporomandibular areaS01.401A..., initial encounterS01.401D..., subsequent encounterS01.401S..., sequelaS01.402Unspecified open wound of left cheek and temporomandibular areaS01.402A..., initial encounterS01.402D..., subsequent encounterS01.402S..., sequelaS01.409Unspecified open wound of unspecified cheek and temporomandibular areaS01.409A..., initial encounterS01.409D..., subsequent encounterS01.409S..., sequela