S20.34 External constriction of front wall of thoraxNon-billable header with 5 child codes.
S20.341 External constriction of right front wall of thoraxS20.342 External constriction of left front wall of thoraxS20.343 External constriction of bilateral front wall of thoraxS20.344 External constriction of middle front wall of thoraxS20.349 External constriction of unspecified front wall of thoraxS20.324S Blister (nonthermal) of middle front wall of thorax, sequelaS20.329 Blister (nonthermal) of unspecified front wall of thoraxS20.329A Blister (nonthermal) of unspecified front wall of thorax, initial encounterS20.329D Blister (nonthermal) of unspecified front wall of thorax, subsequent encounterS20.329S Blister (nonthermal) of unspecified front wall of thorax, sequelaS20.34 External constriction of front wall of thorax (this code)S20.341 External constriction of right front wall of thoraxS20.341A External constriction of right front wall of thorax, initial encounterS20.341D External constriction of right front wall of thorax, subsequent encounterS20.341S External constriction of right front wall of thorax, sequelaS20.342 External constriction of left front wall of thorax