M05.66 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
Short description: Rheumatoid arthritis of knee w involv of organs and systems
The 2023 edition of ICD-10-CM M05.66 became effective on October 1, 2022.
This is the American ICD-10-CM version of M05.66 – other international versions of ICD-10 M05.66 may differ.