Pilonidal cyst without abscess

This code describes a pilonidal cyst that is present but does not show signs of acute infection, such as pus formation, inflammation, or swelling. It represents a chronic, non-inflamed epithelial-lined sinus tract typically located in the sacrococcygeal region. The condition often results from hair penetration into the skin, leading to a foreign body reaction and cyst formation.

Use this code when documentation clearly indicates the presence of a pilonidal cyst without any mention of abscess, infection, or inflammation. This is appropriate for elective excisions of asymptomatic or chronically draining pilonidal cysts. Supporting documentation would include physician notes describing a pilonidal cyst with no signs of acute infection or abscess formation.

• Do not use this code if the documentation indicates an abscess, even if the underlying cause is a pilonidal cyst; instead, use a code from L05.0- or L05.2-.
• Ensure the documentation explicitly states the absence of an abscess to avoid miscoding.
• Be mindful of the "Excludes2" notes; congenital sacral dimples (Q82.6) are distinct conditions and should not be coded here.