ICD-10 Code H95.21 – Intraoperative hemorrhage and hematoma of ear and mastoid process complicating a procedure on the ear and mastoid process (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H95.21 – Intraoperative hemorrhage and hematoma of ear and mastoid process complicating a procedure on the ear and mastoid process
What it is
This code identifies bleeding or a hematoma that occurs during an ear or mastoid procedure and complicates the operation. It applies when the event involves the ear or mastoid process and is documented as intraoperative.
Clinical signs
Clinical features vary; refer to documentation. Typical findings include unexpected surgical bleeding, visible hematoma formation, or need for added hemostasis during the procedure.
When to use this code
Use H95.21 when the operative note clearly states an intraoperative hemorrhage or hematoma affecting the ear or mastoid process. Code it when the complication is documented as arising during the procedure, not as a postoperative issue. Check documentation if the site or timing is unclear.
Do not use for
Do not use this code for postoperative bleeding, routine surgical blood loss, or hemorrhage unrelated to an ear or mastoid procedure. If the record does not specify an intraoperative complication, check documentation.
Coding tip
Verify both the anatomic site and the timing in the operative report before assigning H95.21.