M05.77 Rheumatoid arthritis with rheumatoid factor of ankle and foot without organ or systems involvement

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 M05.77

• M05.771 Rheumatoid arthritis with rheumatoid factor of right ankle and foot without organ or systems involvement
• M05.772 Rheumatoid arthritis with rheumatoid factor of left ankle and foot without organ or systems involvement
• M05.779 Rheumatoid arthritis with rheumatoid factor of unspecified ankle and foot without organ or systems involvement

Code annotations containing back-references to M05.77

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 M05.77

• Arthritis, arthritic (acute) (chronic) (nonpyogenic) (subacute) › rheumatoid › seropositive › without organ involvement › ankle
• Arthritis, arthritic (acute) (chronic) (nonpyogenic) (subacute) › rheumatoid › seropositive › without organ involvement › foot joint

Nearby codes

• M05.759 Rheumatoid arthritis with rheumatoid factor of unspecified hip without organ or systems involvement
• M05.76 Rheumatoid arthritis with rheumatoid factor of knee without organ or systems involvement
• M05.761 Rheumatoid arthritis with rheumatoid factor of right knee without organ or systems involvement
• M05.762 Rheumatoid arthritis with rheumatoid factor of left knee without organ or systems involvement
• M05.769 Rheumatoid arthritis with rheumatoid factor of unspecified knee without organ or systems involvement
• M05.77 Rheumatoid arthritis with rheumatoid factor of ankle and foot without organ or systems involvement (this code)
• M05.771 Rheumatoid arthritis with rheumatoid factor of right ankle and foot without organ or systems involvement
• M05.772 Rheumatoid arthritis with rheumatoid factor of left ankle and foot without organ or systems involvement
• M05.779 Rheumatoid arthritis with rheumatoid factor of unspecified ankle and foot without organ or systems involvement
• M05.79 Rheumatoid arthritis with rheumatoid factor of multiple sites without organ or systems involvement
• M05.7A Rheumatoid arthritis with rheumatoid factor of other specified site without organ or systems involvement