Abscess of tendon sheath, right ankle and foot

This code signifies an infection within the synovial sheath surrounding a tendon in the right ankle or foot, leading to pus formation. This condition, also known as tenosynovial abscess, typically presents with localized pain, swelling, erythema, and impaired tendon function.

Apply this code when documentation clearly indicates an abscess involving a tendon sheath in the right ankle or foot. This often arises from penetrating trauma, spread from adjacent infection, or hematogenous dissemination. Supporting documentation should specify the location (right ankle/foot) and the presence of an abscess within the tendon sheath.

• Differentiate from cellulitis or other soft tissue infections without tendon sheath involvement.
• Ensure laterality (right) and anatomical site (ankle and foot) are explicitly documented.
• Consider an additional code for the underlying cause of the abscess, if known and documented (e.g., open wound, foreign body).