ICD-10-CM > H00-H59 > H10-H11 > H11 > H11.0 H11.0 Pterygium of eye Non-Billable/Non-Specific Type 1 Excludes pseudopterygium (H11.81-) Codes H11.00Unspecified pterygium of eyeH11.001Unspecified pterygium of right eyeH11.002Unspecified pterygium of left eyeH11.003Unspecified pterygium of eye, bilateralH11.009Unspecified pterygium of unspecified eyeH11.01Amyloid pterygiumH11.011Amyloid pterygium of right eyeH11.012Amyloid pterygium of left eyeH11.013Amyloid pterygium of eye, bilateralH11.019Amyloid pterygium of unspecified eyeH11.02Central pterygium of eyeH11.021Central pterygium of right eyeH11.022Central pterygium of left eyeH11.023Central pterygium of eye, bilateralH11.029Central pterygium of unspecified eyeH11.03Double pterygium of eyeH11.031Double pterygium of right eyeH11.032Double pterygium of left eyeH11.033Double pterygium of eye, bilateralH11.039Double pterygium of unspecified eyeH11.04Peripheral pterygium of eye, stationaryH11.041Peripheral pterygium, stationary, right eyeH11.042Peripheral pterygium, stationary, left eyeH11.043Peripheral pterygium, stationary, bilateralH11.049Peripheral pterygium, stationary, unspecified eyeH11.05Peripheral pterygium of eye, progressiveH11.051Peripheral pterygium, progressive, right eyeH11.052Peripheral pterygium, progressive, left eyeH11.053Peripheral pterygium, progressive, bilateralH11.059Peripheral pterygium, progressive, unspecified eyeH11.06Recurrent pterygium of eyeH11.061Recurrent pterygium of right eyeH11.062Recurrent pterygium of left eyeH11.063Recurrent pterygium of eye, bilateralH11.069Recurrent pterygium of unspecified eye