ICD-10-CM 2027
ICD-10 code for enophthalmos
From the official ICD-10-CM alphabetic index entry “Enophthalmos”. Page updated September 29, 2026.
About coding enophthalmos
The ICD-10-CM code for enophthalmos is H05.40 (Unspecified enophthalmos). The official index lists 2 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on H05.40.
Within H05.4, choose H05.40 (Unspecified enophthalmos) only when documentation doesn't support a more specific option: due to atrophy of orbital tissue (H05.41) and due to trauma or surgery (H05.42).
To report this condition, pick the subcode that matches the documentation: H05.401 (right eye), H05.402 (left eye), H05.403 (bilateral) and H05.409 (unspecified eye).
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
More specific enophthalmos codes (official index)
Common questions about enophthalmos ICD-10 codes
What is the ICD-10 code for enophthalmos?
- H05.40 — Unspecified enophthalmos (a header code; report a more specific subcode). More specific codes apply when the documentation supports them: H05.41, H05.42.
Is H05.40 billable?
- No. H05.40 is a header code. Report one of its more specific subcodes instead.