2022 ICD-10-CM Code L05.9

Pilonidal cyst and sinus without abscess

Version 2021

Not Valid for Submission

ICD-10:L05.9
Short Description:Pilonidal cyst and sinus without abscess
Long Description:Pilonidal cyst and sinus without abscess

Code Classification

  • Diseases of the skin and subcutaneous tissue (L00–L99)
    • Infections of the skin and subcutaneous tissue (L00-L08)
      • Pilonidal cyst and sinus (L05)

L05.9 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of pilonidal cyst and sinus without abscess. The code is not specific and is NOT valid for the year 2022 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Specific Coding for Pilonidal cyst and sinus without abscess

Non-specific codes like L05.9 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10 codes with a higher level of specificity when coding for pilonidal cyst and sinus without abscess:

  • BILLABLE CODE - Use L05.91 for Pilonidal cyst without abscess
  • BILLABLE CODE - Use L05.92 for Pilonidal sinus without abscess

Information for Patients


Tailbone Disorders

The tailbone is the small bone at the bottom of your backbone, or spine. Tailbone disorders include tailbone injuries, pain, infections, cysts and tumors. You rarely break your tailbone. Instead, most injuries cause bruises or pulled ligaments. A backward fall onto a hard surface, such as slipping on ice, is the most common cause of such injuries. Symptoms of various tailbone disorders include pain in the tailbone area, pain upon sitting, pain or numbness in the arms or legs due to pressure on nerves in the tailbone area, and a mass or growth you can see or feel.


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Code History

  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016 (First year ICD-10-CM implemented into the HIPAA code set)