2020 ICD-10-CM Diagnosis Code L05.01

Pilonidal cyst with abscess

    2016 2017 2018 2019 2020 Billable/Specific Code
  • L05.01 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2020 edition of ICD-10-CM L05.01 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of L05.01 - other international versions of ICD-10 L05.01 may differ.
Applicable To
  • Pilonidal abscess
  • Pilonidal dimple with abscess
  • Postanal dimple with abscess
Type 2 Excludes
Type 2 Excludes Help
A type 2 excludes note represents "not included here". A type 2 excludes note indicates that the condition excluded is not part of the condition it is excluded from but a patient may have both conditions at the same time. When a type 2 excludes note appears under a code it is acceptable to use both the code (L05.01) and the excluded code together.
  • congenital sacral dimple (
    ICD-10-CM Diagnosis Code Q82.6

    Congenital sacral dimple

      2017 - New Code 2018 2019 2020 Billable/Specific Code POA Exempt
    Applicable To
    • Parasacral dimple
    Type 2 Excludes
    • pilonidal cyst with abscess (L05.01)
    • pilonidal cyst without abscess (L05.91)
    Q82.6
    )
  • parasacral dimple (
    ICD-10-CM Diagnosis Code Q82.6

    Congenital sacral dimple

      2017 - New Code 2018 2019 2020 Billable/Specific Code POA Exempt
    Applicable To
    • Parasacral dimple
    Type 2 Excludes
    • pilonidal cyst with abscess (L05.01)
    • pilonidal cyst without abscess (L05.91)
    Q82.6
    )
The following code(s) above L05.01 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to L05.01:
  • L00-L99
    2020 ICD-10-CM Range L00-L99

    Diseases of the skin and subcutaneous tissue

    Type 2 Excludes
    • certain conditions originating in the perinatal period (P04-P96)
    • certain infectious and parasitic diseases (A00-B99)
    • complications of pregnancy, childbirth and the puerperium (O00-O9A)
    • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
    • endocrine, nutritional and metabolic diseases (E00-E88)
    • lipomelanotic reticulosis (I89.8)
    • neoplasms (C00-D49)
    • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
    • systemic connective tissue disorders (M30-M36)
    • viral warts (B07.-)
    Diseases of the skin and subcutaneous tissue
  • L00-L08
    2020 ICD-10-CM Range L00-L08

    Infections of the skin and subcutaneous tissue

    Type 2 Excludes
    • hordeolum (H00.0)
    • infective dermatitis (L30.3)
    • local infections of skin classified in Chapter 1
    • lupus panniculitis (L93.2)
    • panniculitis NOS (M79.3)
    • panniculitis of neck and back (M54.0-)
    • Perlèche NOS (K13.0)
    • Perlèche due to candidiasis (B37.0)
    • Perlèche due to riboflavin deficiency (E53.0)
    • pyogenic granuloma (L98.0)
    • relapsing panniculitis [Weber-Christian] (M35.6)
    • viral warts (B07.-)
    • zoster (B02.-)
    Use Additional
    • code (B95-B97) to identify infectious agent.
    Infections of the skin and subcutaneous tissue
ICD-10-CM L05.01 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 602 Cellulitis with mcc
  • 603 Cellulitis without mcc

Convert L05.01 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
Code annotations containing back-references to L05.01:
  • Type 1 Excludes: L02.3
    ICD-10-CM Diagnosis Code L02.3

    Cutaneous abscess, furuncle and carbuncle of buttock

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • pilonidal cyst with abscess (L05.01)
  • Type 2 Excludes: Q82.6
    ICD-10-CM Diagnosis Code Q82.6

    Congenital sacral dimple

      2017 - New Code 2018 2019 2020 Billable/Specific Code POA Exempt
    Applicable To
    • Parasacral dimple
    Type 2 Excludes
    • pilonidal cyst with abscess (L05.01)
    • pilonidal cyst without abscess (L05.91)

Diagnosis Index entries containing back-references to L05.01:
  • Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic) L02.91
    ICD-10-CM Diagnosis Code L02.91

    Cutaneous abscess, unspecified

      2016 2017 2018 2019 2020 Billable/Specific Code
    • pilonidal L05.01
  • Cyst (colloid) (mucous) (simple) (retention)
    • pilonidal (infected) (rectum) L05.91
      ICD-10-CM Diagnosis Code L05.91

      Pilonidal cyst without abscess

        2016 2017 2018 2019 2020 Billable/Specific Code
      Applicable To
      • Pilonidal dimple
      • Postanal dimple
      • Pilonidal cyst NOS
      Type 2 Excludes
      • congenital sacral dimple (Q82.6)
      • parasacral dimple (Q82.6)
      • with abscess L05.01

ICD-10-CM Codes Adjacent To L05.01
L03.91 Acute lymphangitis, unspecified
L04 Acute lymphadenitis
L04.0 Acute lymphadenitis of face, head and neck
L04.1 Acute lymphadenitis of trunk
L04.2 Acute lymphadenitis of upper limb
L04.3 Acute lymphadenitis of lower limb
L04.8 Acute lymphadenitis of other sites
L04.9 Acute lymphadenitis, unspecified
L05 Pilonidal cyst and sinus
L05.0 Pilonidal cyst and sinus with abscess
L05.01 Pilonidal cyst with abscess
L05.02 Pilonidal sinus with abscess
L05.9 Pilonidal cyst and sinus without abscess
L05.91 Pilonidal cyst without abscess
L05.92 Pilonidal sinus without abscess
L08 Other local infections of skin and subcutaneous tissue
L08.0 Pyoderma
L08.1 Erythrasma
L08.8 Other specified local infections of the skin and subcutaneous tissue
L08.81 Pyoderma vegetans
L08.82 Omphalitis not of newborn

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.