Abscess of tendon sheath, left hand

This code signifies an infection with pus formation within the synovial sheath surrounding a tendon in the left hand. This condition, often bacterial, can lead to pain, swelling, and impaired hand function. It represents a localized collection of inflammatory exudate within the tendon's protective covering.

Apply this code when documentation explicitly states an abscess of a tendon sheath located in the left hand. This typically occurs in cases of tenosynovitis with purulent drainage, confirmed by imaging or surgical findings. Supporting documentation includes physician notes detailing the location, presence of pus, and involvement of the tendon sheath.

• Ensure the documentation specifies "abscess" and not just "infection" or "tenosynovitis" without pus formation.
• Verify the laterality is clearly documented as "left hand" to avoid incorrect coding.
• Distinguish from cellulitis or other soft tissue infections not specifically involving the tendon sheath.