S00.541 | External constriction of lip | NON-BILLABLE CODE |
S00.541A | External constriction of lip, initial encounter | BILLABLE CODE |
S00.541D | External constriction of lip, subsequent encounter | BILLABLE CODE |
S00.541S | External constriction of lip, sequela | BILLABLE CODE |
S00.542 | External constriction of oral cavity | NON-BILLABLE CODE |
S00.542A | External constriction of oral cavity, initial encounter | BILLABLE CODE |
S00.542D | External constriction of oral cavity, subsequent encounter | BILLABLE CODE |
S00.542S | External constriction of oral cavity, sequela | BILLABLE CODE |