M05.0 Felty's syndrome

Non-billable header with 9 child codes.

Applicable to

• Rheumatoid arthritis with splenoadenomegaly and leukopenia

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 M05.0

• M05.00 Felty's syndrome, unspecified site
• M05.01 Felty's syndrome, shoulder
• M05.02 Felty's syndrome, elbow
• M05.03 Felty's syndrome, wrist
• M05.04 Felty's syndrome, hand
• M05.05 Felty's syndrome, hip
• M05.06 Felty's syndrome, knee
• M05.07 Felty's syndrome, ankle and foot
• M05.09 Felty's syndrome, multiple sites

Code annotations containing back-references to M05.0

Back-references to M05.0

• Type 1 Excludes: M08 Juvenile arthritis ("Felty's syndrome (M05.0)")

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.-)")

Nearby codes

• M05 Rheumatoid arthritis with rheumatoid factor
• M05.0 Felty's syndrome (this code)
• M05.00 Felty's syndrome, unspecified site
• M05.01 Felty's syndrome, shoulder
• M05.011 Felty's syndrome, right shoulder
• M05.012 Felty's syndrome, left shoulder
• M05.019 Felty's syndrome, unspecified shoulder