Open wound of thoracic wall NOS
S21.9 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
The 2023 edition of ICD-10-CM S21.9 became effective on October 1, 2022.
This is the American ICD-10-CM version of S21.9 – other international versions of ICD-10 S21.9 may differ.