2019 ICD-10-CM Diagnosis Code L66.3

Perifolliculitis capitis abscedens

    2016 2017 2018 2019 Billable/Specific Code
  • L66.3 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2019 edition of ICD-10-CM L66.3 became effective on October 1, 2018.
  • This is the American ICD-10-CM version of L66.3 - other international versions of ICD-10 L66.3 may differ.
The following code(s) above L66.3 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 L66.3:
  • L00-L99
    2019 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
  • L60-L75
    2019 ICD-10-CM Range L60-L75

    Disorders of skin appendages

    Type 1 Excludes
    • congenital malformations of integument (Q84.-)
    Disorders of skin appendages
Approximate Synonyms
  • Perifolliculitis capitis
  • Perifolliculitis capitis abscedens et suffodiens
ICD-10-CM L66.3 is grouped within Diagnostic Related Group(s) (MS-DRG v36.0):
  • 606 Minor skin disorders with mcc
  • 607 Minor skin disorders without mcc

Convert L66.3 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

Diagnosis Index entries containing back-references to L66.3:
  • Folliculitis (superficial) L73.9
    ICD-10-CM Diagnosis Code L73.9

    Follicular disorder, unspecified

      2016 2017 2018 2019 Billable/Specific Code
    • abscedens et suffodiens L66.3
  • Perifolliculitis L01.02
    ICD-10-CM Diagnosis Code L01.02

    Bockhart's impetigo

      2016 2017 2018 2019 Billable/Specific Code
    Applicable To
    • Impetigo follicularis
    • Perifolliculitis NOS
    • Superficial pustular perifolliculitis
    • abscedens, caput, scalp L66.3
    • capitis, abscedens L66.3 (et suffodiens)

ICD-10-CM Codes Adjacent To L66.3
L65 Other nonscarring hair loss
L65.0 Telogen effluvium
L65.1 Anagen effluvium
L65.2 Alopecia mucinosa
L65.8 Other specified nonscarring hair loss
L65.9 Nonscarring hair loss, unspecified
L66 Cicatricial alopecia [scarring hair loss]
L66.0 Pseudopelade
L66.1 Lichen planopilaris
L66.2 Folliculitis decalvans
L66.3 Perifolliculitis capitis abscedens
L66.4 Folliculitis ulerythematosa reticulata
L66.8 Other cicatricial alopecia
L66.9 Cicatricial alopecia, unspecified
L67 Hair color and hair shaft abnormalities
L67.0 Trichorrhexis nodosa
L67.1 Variations in hair color
L67.8 Other hair color and hair shaft abnormalities
L67.9 Hair color and hair shaft abnormality, unspecified
L68 Hypertrichosis
L68.0 Hirsutism

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