2021

  1. ICD-10-CM Codes
    2. ›
  2. L00-L99 Diseases of the skin and subcutaneous tissue
    3. ›
  3. L00-L08 Infections of the skin and subcutaneous tissue
    4. ›
  4. L02- Cutaneous abscess, furuncle and carbuncle
    5. ›
  5. 2021 ICD-10-CM Diagnosis Code L02.821

2021 ICD-10-CM Diagnosis Code L02.821

Furuncle of head [any part, except face]

    2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • L02.821 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2021 edition of ICD-10-CM L02.821 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of L02.821 - other international versions of ICD-10 L02.821 may differ.
The following code(s) above L02.821 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 L02.821:
  • L00-L99
    2021 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
    2021 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
  • L02
    ICD-10-CM Diagnosis Code L02

    Cutaneous abscess, furuncle and carbuncle

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Type 2 Excludes
    • abscess of anus and rectal regions (K61.-)
    • abscess of female genital organs (external) (N76.4)
    • abscess of male genital organs (external) (N48.2, N49.-)
    Use Additional
    • code to identify organism (B95-B96)
    Cutaneous abscess, furuncle and carbuncle
  • L02.82
    ICD-10-CM Diagnosis Code L02.82

    Furuncle of other sites

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Applicable To
    • Boil of other sites
    • Folliculitis of other sites
    Furuncle of other sites
Approximate Synonyms
  • Furuncle of scalp
  • Scalp furuncle
ICD-10-CM L02.821 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
  • 602 Cellulitis with mcc
  • 603 Cellulitis without mcc

Convert L02.821 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
  • 2021 (effective 10/1/2020): No change

Diagnosis Index entries containing back-references to L02.821:
  • Furuncle L02.92
    ICD-10-CM Diagnosis Code L02.92

    Furuncle, unspecified

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    • Boil NOS
    • Furunculosis NOS
    • head L02.821
    • scalp L02.821

ICD-10-CM Codes Adjacent To L02.821
L02.629 Furuncle of unspecified foot
L02.63 Carbuncle of foot
L02.631 Carbuncle of right foot
L02.632 Carbuncle of left foot
L02.639 Carbuncle of unspecified foot
L02.8 Cutaneous abscess, furuncle and carbuncle of other sites
L02.81 Cutaneous abscess of other sites
L02.811 Cutaneous abscess of head [any part, except face]
L02.818 Cutaneous abscess of other sites
L02.82 Furuncle of other sites
L02.821 Furuncle of head [any part, except face]
L02.828 Furuncle of other sites
L02.83 Carbuncle of other sites
L02.831 Carbuncle of head [any part, except face]
L02.838 Carbuncle of other sites
L02.9 Cutaneous abscess, furuncle and carbuncle, unspecified
L02.91 Cutaneous abscess, unspecified
L02.92 Furuncle, unspecified
L02.93 Carbuncle, unspecified
L03 Cellulitis and acute lymphangitis
L03.0 Cellulitis and acute lymphangitis of finger and toe

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

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