Dir infct of right ank/ft in infec/parastc dis classd elswhr

This code signifies an inflammatory arthropathy of the right ankle and/or foot that is directly caused by an infectious or parasitic agent. The infection is not primarily within the joint itself, but rather an underlying systemic infectious disease that has manifested in the joint.

Use this code when documentation clearly indicates an infectious arthritis of the right ankle and foot secondary to a systemic infectious or parasitic disease. Examples include Lyme arthritis affecting the ankle, or joint involvement in tuberculosis or syphilis. Documentation must specify the infectious agent and the affected joint.

• Always sequence the underlying infectious or parasitic disease code first, followed by this code.
• Ensure the documentation specifies "right ankle and foot" to justify laterality.
• Do not use for septic arthritis where the infection originates within the joint itself; refer to codes in chapter 13 for those cases.