H05.31Non-Billable (Header)Atrophy of orbitChild CodesH05.311Atrophy of right orbitH05.312Atrophy of left orbitH05.313Atrophy of bilateral orbitH05.319Atrophy of unspecified orbitCode Hierarchy└H05Disorders of orbit└H05.3Deformity of orbit└H05.31Atrophy of orbit└H05.31Atrophy of orbit