ICD-10-CM > H00-H59 > H00-H05 > H05 > H05.0 > H05.03 H05.03 Periostitis of orbit Non-Billable/Non-Specific Codes H05.031Periostitis of right orbitH05.032Periostitis of left orbitH05.033Periostitis of bilateral orbitsH05.039Periostitis of unspecified orbit