ICD-10-CM 2027 diagnosis code

L05.0Pilonidal cyst and sinus with abscess

Not billable — use a more specific code

L05.0 is a header code, so it can't be reported by itself. Choose one of the 2 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About L05.0

L05.0 is the ICD-10-CM diagnosis code for pilonidal cyst and sinus with abscess. It belongs to category L05 (pilonidal cyst and sinus), block L00-L08 (infections of the skin and subcutaneous tissue) and chapter 12 (diseases of the skin and subcutaneous tissue). It is a header code, so it can't be reported by itself; one of its 2 subcodes must be used instead.

Within L05 (pilonidal cyst and sinus), L05.0 is specifically for pilonidal cyst and sinus with abscess. Related codes cover without abscess (L05.9).

To report this condition, pick the subcode that matches the documentation: L05.01 (abscess) and L05.02 (abscess).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under L05.0

Notes that apply from higher levels

Instructions written at a parent level also apply to L05.0.

Broader instructions also apply from L00-L08 Infections of the skin and subcutaneous tissue and Chapter 12: Diseases of the skin and subcutaneous tissue.

Code history

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2027

FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
No changes since FY2016.

Common questions about L05.0

Is L05.0 billable?: No. L05.0 is a header code. Report one of its more specific subcodes instead.