ICD-10-CM > S00-T88 > S00-S09 > S00 > S00.4 > S00.44 S00.44 External constriction of ear Non-Billable/Non-Specific Codes S00.441External constriction of right earS00.441A..., initial encounterS00.441D..., subsequent encounterS00.441S..., sequelaS00.442External constriction of left earS00.442A..., initial encounterS00.442D..., subsequent encounterS00.442S..., sequelaS00.449External constriction of unspecified earS00.449A..., initial encounterS00.449D..., subsequent encounterS00.449S..., sequela