MCMedicalCodingSoftware
L05.01

L05.01: Pilonidal cyst with abscess

Billable / specific codeICD-10-CM

L05.01 is a billable, specific ICD-10-CM code for pilonidal cyst with abscess. It is valid for submission on a claim.

Check L05.01 with the rest of the claim: free scrubber

Excludes2: not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

  • congenital sacral dimple (Q82.6)
  • parasacral dimple (Q82.6)

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Pilonidal abscess
  • Pilonidal dimple with abscess
  • Postanal dimple with abscess

Other codes that can never be billed with L05.01

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • L02.3Cutaneous abscess, furuncle and carbuncle of buttock
  • Q43.6Congenital fistula of rectum and anus
  • Q82Other congenital malformations of skin

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

L05.01 is named in 2 Medicare coverage policies: 2 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A56766Billing and Coding: Incision and Drainage (I&D) of Abscess of Skin, Subcutaneous and Accessory Structures
  • A58565Billing and Coding: Wound and Ulcer Care

Alphabetic index entries that lead here

  • Abscess›pilonidal
  • Cyst›pilonidal›with abscess

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under L05.0

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.