ICD-10-CM > H00-H59 > H10-H11 > H11 > H11.0 > H11.00 H11.00 Unspecified pterygium of eye Non-Billable/Non-Specific Codes H11.001Unspecified pterygium of right eyeH11.002Unspecified pterygium of left eyeH11.003Unspecified pterygium of eye, bilateralH11.009Unspecified pterygium of unspecified eye