ICD-10 Code K91.873 – Postprocedural Seroma of a Digestive System Organ or Structure Following Other Procedure (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K91.873 – Postprocedural seroma of a digestive system organ or structure following other procedure
What it is
K91.873 identifies a seroma that develops after a procedure involving a digestive system organ or structure. It means fluid has collected in the postoperative space or tissue area after surgery or another intervention.
Clinical signs
Typical findings include localized swelling, a soft or fluctuant mass, and possible discomfort near the operative site. Clinical features vary; refer to documentation when the record describes postoperative fluid collection or seroma.
When to use this code
Use this code when the provider documents a postprocedural seroma affecting a digestive system organ or structure after a procedure. It is appropriate when the seroma is clearly linked to the operation and not described as another complication. Check documentation if the note only mentions postoperative swelling without confirming seroma.
Do not use for
Do not use this code for abscess, hematoma, infection, or unspecified postoperative swelling. If the record does not identify a seroma or does not link it to a digestive system procedure, check documentation.
Coding tip
Code only when the provider documents seroma and the postoperative relationship; otherwise, query or check documentation.