H05.359 Exostosis of unspecified orbit

Billable ICD-10-CM code, FY2026.

Applies from H05 Disorders of orbit

Excludes1 (never code together)

• congenital malformation of orbit (Q10.7)

Applies from H05.3 Deformity of orbit

Excludes1 (never code together)

• congenital deformity of orbit (Q10.7)
• hypertelorism (Q75.2)

MS-DRG index

Defines the logic of DRG(s) 124-125 in MDC 02.

Approximate ICD-9-CM (GEMs)

• 376.42 Exostosis of orbit (approximate)

Nearby codes

• H05.349 Enlargement of unspecified orbit
• H05.35 Exostosis of orbit
• H05.351 Exostosis of right orbit
• H05.352 Exostosis of left orbit
• H05.353 Exostosis of bilateral orbits
• H05.359 Exostosis of unspecified orbit (this code)
• H05.4 Enophthalmos
• H05.40 Unspecified enophthalmos
• H05.401 Unspecified enophthalmos, right eye
• H05.402 Unspecified enophthalmos, left eye
• H05.403 Unspecified enophthalmos, bilateral