Abscess of tendon sheath, unspecified thigh

This code signifies an infection with pus formation within the synovial sheath surrounding a tendon in the thigh. It indicates an inflammatory process affecting the tendon's protective covering, without further specification of the exact thigh region.

Apply this code when documentation clearly states an abscess of a tendon sheath located in the thigh, and the specific anatomical site within the thigh (e.g., right, left, anterior, posterior) is not identified. This diagnosis is typically supported by physical examination findings of localized swelling, pain, warmth, and possibly fluctuance, often confirmed by imaging or surgical exploration.

• Ensure documentation specifies "abscess" and "tendon sheath" in the thigh.
• Avoid using this code if a more specific location within the thigh is documented (e.g., right or left thigh).
• Do not confuse with cellulitis or other soft tissue infections that do not specifically involve the tendon sheath.