H11.0 - Pterygium of eye
H11.00 - Unspecified pterygium of eye
H11.001 - Unspecified pterygium of right eye
H11.002 - Unspecified pterygium of left eye
H11.003 - Unspecified pterygium of eye, bilateral
H11.009 - Unspecified pterygium of unspecified eye