ICD-10 Code I97.640 – Postprocedural seroma of a circulatory system organ or structure following a cardiac catheterization (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I97.640 – Postprocedural seroma of a circulatory system organ or structure following a cardiac catheterization
What it is
This code identifies a seroma, or localized fluid collection, that develops after a cardiac catheterization involving a circulatory system organ or structure. Use it when the documentation clearly links the fluid collection to the procedure.
Clinical signs
Typical findings include a postprocedure swelling or fluid pocket near the access or operative site. Clinical features vary; refer to documentation for confirmation of the seroma and its relationship to the catheterization.
When to use this code
Use I97.640 when the provider documents a seroma as a complication following cardiac catheterization. Code it when the record identifies the event as postprocedural and involves a circulatory system organ or structure. Check documentation if the cause or procedure relationship is unclear.
Do not use for
Do not use this code for unrelated edema, hematoma, infection, or routine postprocedure pain. If the chart does not specify a seroma after cardiac catheterization, check documentation.
Coding tip
Verify both the complication and the procedure linkage before assigning I97.640.