Pilonidal cyst with abscess

This code signifies an infected pilonidal cyst, characterized by a localized collection of pus (abscess) within the cyst. A pilonidal cyst is a sac-like structure typically found at the top of the natal cleft, often containing hair and skin debris. The presence of an abscess indicates an acute inflammatory process requiring intervention.

Use this code when documentation clearly states a diagnosis of a pilonidal cyst that has become acutely infected and formed an abscess. This applies to patients presenting with pain, swelling, redness, and purulent drainage from the sacrococcygeal region, consistent with an abscessed pilonidal cyst. Supporting documentation would include physician notes detailing the presence of an abscess.

• Differentiate from an uncomplicated pilonidal cyst (without abscess) which would be coded differently.
• Ensure the documentation explicitly mentions "abscess" or describes purulent drainage and inflammation indicative of an abscess.
• Review for any associated complications or procedures (e.g., incision and drainage) that may require additional coding.