ICD-10 Code L76.3 – Postprocedural hematoma and seroma of skin and subcutaneous tissue following a procedure (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L76.3 – Postprocedural hematoma and seroma of skin and subcutaneous tissue following a procedure
What it is
L76.3 identifies a hematoma or seroma that develops in the skin or subcutaneous tissue after a procedure. Use it when the record clearly links the collection of blood or fluid to the prior procedure.
Clinical signs
Typical findings include localized swelling, tenderness, firmness, bruising, or a fluid-filled area near the procedure site. Clinical features vary; refer to documentation for the exact postoperative complication noted.
When to use this code
Use this code when the clinician documents a postprocedural hematoma or seroma involving skin or subcutaneous tissue. It fits postoperative collections after surgery or another procedure when the complication is described as hematoma or seroma. Check documentation for site and relationship to the procedure.
Do not use for
Do not use it for unrelated abscesses, infections, or routine postoperative pain without a documented hematoma or seroma. Do not assign it if the complication is not clearly tied to a procedure.
Coding tip
Confirm that the provider explicitly states “postprocedural” and identifies hematoma or seroma before coding L76.3.