ICD-10 Code H59.369 – Postprocedural seroma of unspecified eye and adnexa following other procedure (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H59.369 – Postprocedural seroma of unspecified eye and adnexa following other procedure
What it is
This code identifies a seroma, or fluid collection, that develops in the eye or adnexal tissues after another procedure. Use it when the record documents a postoperative seroma but does not specify a more exact eye or adnexal site.
Clinical signs
Clinical features vary; refer to documentation. A seroma is typically noted as localized postoperative swelling or a fluid-filled collection near the surgical site, sometimes with pressure or visible enlargement.
When to use this code
Use H59.369 when the provider documents a postprocedural seroma involving an unspecified eye or adnexal structure after a procedure other than the one creating the code’s primary context. It is appropriate when the site is not further identified in the chart. Check documentation if the complication is described differently, such as infection or hemorrhage.
Do not use for
Do not use this code for routine postoperative edema, bruising, or an abscess without seroma documentation. If the record specifies a different eye complication or a more precise anatomic site, code that instead.
Coding tip
Confirm that the provider links the seroma to the procedure and that the eye/adnexal site is truly unspecified before assigning H59.369.