Cutaneous abscess of back

This code signifies a localized collection of pus forming within the skin and subcutaneous tissue on a patient's back, excluding the buttocks and flank regions. It indicates an infection that has led to tissue breakdown and purulent exudate.

Apply this code when documentation clearly states a diagnosis of a cutaneous abscess located on the back, such as the thoracic or lumbar spine area, but specifically not involving the gluteal or lateral abdominal regions. Supporting documentation would include physical exam findings describing a fluctuant, tender, erythematous mass, often with accompanying signs of inflammation.

• Ensure the documentation specifies "back" and explicitly excludes the buttock and flank to differentiate from other abscess codes.
• Do not use this code for carbuncles or furuncles; separate codes exist for those conditions.
• Consider an additional code for the causative organism if identified and documented.