ICD-10-CM > H00-H59 > H10-H11 > H11 > H11.0 > H11.04 H11.04 Peripheral pterygium of eye, stationary Non-Billable/Non-Specific Codes H11.041Peripheral pterygium, stationary, right eyeH11.042Peripheral pterygium, stationary, left eyeH11.043Peripheral pterygium, stationary, bilateralH11.049Peripheral pterygium, stationary, unspecified eye