ICD-10 Code L05.92 – Pilonidal sinus without abscess (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L05.92 – Pilonidal sinus without abscess
What it is
This code identifies a pilonidal sinus in the natal cleft or nearby sacrococcygeal area when no abscess is present. It reflects a chronic or recurrent sinus tract, not an acute infected collection.
Clinical signs
Typical findings include a midline pit, draining sinus opening, or intermittent serous or bloody discharge in the cleft. Clinical features vary; refer to documentation.
When to use this code
Use L05.92 when the record documents pilonidal sinus without abscess, including chronic drainage or a noninfected sinus tract. Choose it when the provider specifically notes absence of abscess or acute suppuration. If the note is unclear, check documentation before assigning the code.
Do not use for
Do not use this code for pilonidal abscess, infected cyst, or other perianal disease unless the documentation supports pilonidal sinus without abscess. Check documentation if the record suggests acute infection.
Coding tip
Confirm that the provider distinguishes sinus from abscess, because that detail determines whether L05.92 is appropriate.