The ICD-9 codes for rheumatoid arthritis are the eight codes between 714.0 and 714.4, according to the Centers for Medicare and Medicaid. The code for general rheumatoid arthritis is 714.0.
According to the Centers for Medicare and Medicaid, 714.1 is the ICD-9 code for Felty's Syndrome, which is a type of long-standing rheumatoid arthritis. The code 714.2 is used for rheumatoid arthritis with visceral or other systemic involvement. The codes 714.30, 714.31, 714.32 and 714.33 are used for different types of juvenile rheumatoid arthritis, including chronic polyarticular, acute polyarticular, pauciarticular and monoarticular. The code 714.4 is used for chronic postrheumatic arthropathy.