ICD-10 code for orbit disorder

The ICD-10-CM code for orbit disorder is H05.9 (Unspecified disorder of orbit). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on H05.9.

Within H05, choose H05.9 (Unspecified disorder of orbit) only when documentation doesn't support a more specific option: acute inflammation of orbit (H05.0), chronic inflammatory disorders of orbit (H05.1), Exophthalmic conditions (H05.2), deformity of orbit (H05.3), enophthalmos (H05.4), retained (old) foreign body following penetrating wound of orbit (H05.5) and other disorders of orbit (H05.8).

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.