ICD-10-CM > S00-T88 > S20-S29 > S20 > S20.3 > S20.37 S20.37 Other superficial bite of front wall of thorax Non-Billable/Non-Specific Type 1 Excludes open bite of front wall of thorax (S21.14) Codes S20.371Other superficial bite of right front wall of thoraxS20.371A..., initial encounterS20.371D..., subsequent encounterS20.371S..., sequelaS20.372Other superficial bite of left front wall of thoraxS20.372A..., initial encounterS20.372D..., subsequent encounterS20.372S..., sequelaS20.373Other superficial bite of bilateral front wall of thoraxS20.373A..., initial encounterS20.373D..., subsequent encounterS20.373S..., sequelaS20.374Other superficial bite of middle front wall of thoraxS20.374A..., initial encounterS20.374D..., subsequent encounterS20.374S..., sequelaS20.379Other superficial bite of unspecified front wall of thoraxS20.379A..., initial encounterS20.379D..., subsequent encounterS20.379S..., sequela