ICD-10-CM > H00-H59 > H10-H11 > H11 > H11.0 > H11.03 H11.03 Double pterygium of eye Non-Billable/Non-Specific Codes H11.031Double pterygium of right eyeH11.032Double pterygium of left eyeH11.033Double pterygium of eye, bilateralH11.039Double pterygium of unspecified eye