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ICD-10-CM 2027

ICD-10 code for orbit enlargement

H05.34

Enlargement of orbit

Header — needs a more specific code

From the official ICD-10-CM alphabetic index entry “Enlargement, enlarged › orbit”. Page updated September 29, 2026.

About coding orbit enlargement

The ICD-10-CM code for orbit enlargement is H05.34 (Enlargement of orbit).

Within H05.3 (deformity of orbit), H05.34 is specifically for enlargement of orbit. Related codes cover unspecified deformity of orbit (H05.30), atrophy of orbit (H05.31), due to bone disease (H05.32), due to trauma or surgery (H05.33) and Exostosis of orbit (H05.35).

To report this condition, pick the subcode that matches the documentation: H05.341 (orbit), H05.342 (orbit), H05.343 (orbits) and H05.349 (orbit).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Common questions about orbit enlargement ICD-10 codes

What is the ICD-10 code for orbit enlargement?

H05.34 — Enlargement of orbit (a header code; report a more specific subcode).

Is H05.34 billable?

No. H05.34 is a header code. Report one of its more specific subcodes instead.