ICD-10 Code E89.823 – Postprocedural Seroma of an Endocrine System Organ or Structure Following Other Procedure (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E89.823 – Postprocedural seroma of an endocrine system organ or structure following other procedure
What it is
This code identifies a seroma, or localized fluid collection, that develops after a procedure involving an endocrine organ or structure. Use it when the record clearly links the fluid collection to the prior procedure.
Clinical signs
Typical findings include postoperative swelling, a soft or fluctuant mass, and possible discomfort at the surgical site. Clinical features vary; refer to documentation for the specific endocrine organ involved and whether the seroma is confirmed.
When to use this code
Use E89.823 when documentation states a seroma occurred after surgery or another procedure on an endocrine system organ or structure. It is appropriate for postoperative fluid collections described as seroma, not for unrelated edema or infection. Check documentation if the relationship to the procedure is unclear.
Do not use for
Do not use this code for abscess, hematoma, or general postoperative swelling without a documented seroma. Do not assign it when the fluid collection is not linked to an endocrine procedure.
Coding tip
Confirm both the postoperative nature and the endocrine site before assigning E89.823.