ICD-10 Code H59.363 – Postprocedural seroma of eye and adnexa following other procedure, bilateral (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H59.363 – Postprocedural seroma of eye and adnexa following other procedure, bilateral
What it is
This code identifies a seroma, or fluid collection, that develops in both eyes or adnexa after a procedure other than cataract surgery. Use it when the documentation clearly states a postprocedural seroma affecting both sides.
Clinical signs
Clinical features vary; refer to documentation. You may see postoperative swelling, localized fluid collection, or signs noted on exam or imaging in the eye or surrounding adnexal tissues.
When to use this code
Use H59.363 when the provider documents a bilateral postprocedural seroma involving the eye or adnexa and links it to a prior procedure. It is appropriate for postoperative complication coding when the seroma is the focus of care. Check documentation if the record does not clearly identify both laterality and the procedure relationship.
Do not use for
Do not use this code for seromas unrelated to a procedure, or when the condition is not documented as bilateral. Do not assign it if the record describes a different postoperative eye complication. Check documentation.
Coding tip
Confirm both the postprocedural cause and bilateral involvement before assigning H59.363.