ICD-10-CM > H00-H59 > H49-H52 > H50 > H50.6 > H50.66 H50.66 Superior oblique muscle entrapment Non-Billable/Non-Specific Codes H50.661Superior oblique muscle entrapment, right eyeH50.662Superior oblique muscle entrapment, left eyeH50.669Superior oblique muscle entrapment, unspecified eye