ICD-10-CM 2027
ICD-10 code for orbit deformity
From the official ICD-10-CM alphabetic index entry “Deformity › orbit (eye) (acquired)”. Page updated September 29, 2026.
About coding orbit deformity
The ICD-10-CM code for orbit deformity is H05.30 (Unspecified deformity of orbit). The official index lists 3 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on H05.30.
Within H05.3, choose H05.30 (Unspecified deformity of orbit) only when documentation doesn't support a more specific option: atrophy of orbit (H05.31), due to bone disease (H05.32), due to trauma or surgery (H05.33), enlargement of orbit (H05.34) and Exostosis of orbit (H05.35).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 124 (Other Disorders of the Eye with MCC or Thrombolytic Agent, relative weight 1.2471) and DRG 125 (Other Disorders of the Eye without MCC, relative weight 0.7702), in MDC 02 (Diseases and Disorders of the Eye), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific orbit deformity codes (official index)
Common questions about orbit deformity ICD-10 codes
What is the ICD-10 code for orbit deformity?
- H05.30 — Unspecified deformity of orbit. More specific codes apply when the documentation supports them: Q10.7, H05.32, H05.33.
What is the ICD-10 code for congenital orbit deformity?
- Q10.7 — Congenital malformation of orbit.
Is H05.30 billable?
- Yes. H05.30 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can H05.30 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict H05.30 as a principal diagnosis.
Is H05.30 a CC or MCC?
- No. H05.30 is neither a CC nor an MCC under MS-DRG v44.0.