M05.86 Other rheumatoid arthritis with rheumatoid factor of knee

Non-billable header with 3 child codes.

Applies from M05 Rheumatoid arthritis with rheumatoid factor

Excludes1 (never code together)

• rheumatic fever (I00)
• juvenile rheumatoid arthritis (M08.-)
• rheumatoid arthritis of spine (M45.-)

Codes under M05.86

• M05.861 Other rheumatoid arthritis with rheumatoid factor of right knee
• M05.862 Other rheumatoid arthritis with rheumatoid factor of left knee
• M05.869 Other rheumatoid arthritis with rheumatoid factor of unspecified knee

Code annotations containing back-references to M05.86

Back-references to M05

• Code Also: I27.21 Secondary pulmonary arterial hypertension ("rheumatoid arthritis (M05.-)")
• Type 1 Excludes: R76.81 Abnormal rheumatoid factor and anti-citrullinated protein antibody without rheumatoid arthritis ("rheumatoid arthritis with rheumatoid factor (M05.-)")

Diagnosis Index entries for M05.86

• Arthritis, arthritic (acute) (chronic) (nonpyogenic) (subacute) › rheumatoid › seropositive › specified NEC › knee

Nearby codes

• M05.849 Other rheumatoid arthritis with rheumatoid factor of unspecified hand
• M05.85 Other rheumatoid arthritis with rheumatoid factor of hip
• M05.851 Other rheumatoid arthritis with rheumatoid factor of right hip
• M05.852 Other rheumatoid arthritis with rheumatoid factor of left hip
• M05.859 Other rheumatoid arthritis with rheumatoid factor of unspecified hip
• M05.86 Other rheumatoid arthritis with rheumatoid factor of knee (this code)
• M05.861 Other rheumatoid arthritis with rheumatoid factor of right knee
• M05.862 Other rheumatoid arthritis with rheumatoid factor of left knee
• M05.869 Other rheumatoid arthritis with rheumatoid factor of unspecified knee
• M05.87 Other rheumatoid arthritis with rheumatoid factor of ankle and foot
• M05.871 Other rheumatoid arthritis with rheumatoid factor of right ankle and foot