H59.359Postprocedural seroma of unspecified eye and adnexa following an ophthalmic procedure

H59.359 is the ICD-10-CM diagnosis code for postprocedural seroma of unspecified eye and adnexa following an ophthalmic procedure. It belongs to category H59 (intraoperative and postprocedural complications and disorders of eye and adnexa, not elsewhere classified), block H59 (intraoperative and postprocedural complications and disorders of eye and adnexa, not elsewhere classified) and chapter 7 (diseases of the eye and adnexa). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within H59.35, choose H59.359 (unspecified eye and adnexa following an ophthalmic procedure) only when documentation doesn't support a more specific option: right eye and adnexa following an ophthalmic procedure (H59.351), left eye and adnexa following an ophthalmic procedure (H59.352) and bilateral (H59.353).

As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.

In MS-DRG v44.0, it is part of the grouping logic for DRG 919 (Complications of Treatment with MCC, relative weight 1.763), DRG 920 (Complications of Treatment with CC, relative weight 0.9975) and DRG 921 (Complications of Treatment without CC/MCC, relative weight 0.6722), in MDC 21 (Injuries, Poisonings and Toxic Effects of Drugs), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

It is an unspecified code for which a more specific option (often laterality) exists, and the Medicare Code Editor flags it for review on inpatient claims.

It was added in FY2017, effective October 1, 2016.

Before ICD-10, this condition was coded in ICD-9-CM as 998.13 (seroma complicating a procedure).