Chapter 12

L00–L99: Diseases of the Skin and Subcutaneous Tissue

Diseases of the Skin and Subcutaneous Tissue diagnostic classification updated for 2026.

Chapter Instructions

Excludes2(Not included here. Code separately if applicable.)
  • 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.-)
Internal Codes
  • L00|

    Staphylococcal scalded skin syndrome

  • L01|

    Impetigo

  • L01.0|

    Impetigo

  • L01.00|

    Impetigo, unspecified

  • L01.01|

    Non-bullous impetigo

  • L01.02|

    Bockhart's impetigo

  • L01.03|

    Bullous impetigo

  • L01.09|

    Other impetigo

  • L01.1|

    Impetiginization of other dermatoses

  • L02|

    Cutaneous abscess, furuncle and carbuncle

  • L02.0|

    Cutaneous abscess, furuncle and carbuncle of face

  • L02.01|

    Cutaneous abscess of face

  • L02.02|

    Furuncle of face

  • L02.03|

    Carbuncle of face

  • L02.1|

    Cutaneous abscess, furuncle and carbuncle of neck

  • L02.11|

    Cutaneous abscess of neck

  • L02.12|

    Furuncle of neck

  • L02.13|

    Carbuncle of neck

  • L02.2|

    Cutaneous abscess, furuncle and carbuncle of trunk

  • L02.21|

    Cutaneous abscess of trunk

  • L02.211|

    Cutaneous abscess of abdominal wall

  • L02.212|

    Cutaneous abscess of back [any part, except buttock and flank]

  • L02.213|

    Cutaneous abscess of chest wall

  • L02.214|

    Cutaneous abscess of groin

  • L02.215|

    Cutaneous abscess of perineum

  • L02.216|

    Cutaneous abscess of umbilicus

  • L02.217|

    Cutaneous abscess of flank

  • L02.219|

    Cutaneous abscess of trunk, unspecified

  • L02.22|

    Furuncle of trunk

  • L02.221|

    Furuncle of abdominal wall

  • L02.222|

    Furuncle of back [any part, except buttock and flank]

  • L02.223|

    Furuncle of chest wall

  • L02.224|

    Furuncle of groin

  • L02.225|

    Furuncle of perineum

  • L02.226|

    Furuncle of umbilicus

  • L02.227|

    Furuncle of flank

  • L02.229|

    Furuncle of trunk, unspecified

  • L02.23|

    Carbuncle of trunk

  • L02.231|

    Carbuncle of abdominal wall

  • L02.232|

    Carbuncle of back [any part, except buttock]

  • L02.233|

    Carbuncle of chest wall

  • L02.234|

    Carbuncle of groin

  • L02.235|

    Carbuncle of perineum

  • L02.236|

    Carbuncle of umbilicus

  • L02.239|

    Carbuncle of trunk, unspecified

  • L02.3|

    Cutaneous abscess, furuncle and carbuncle of buttock

  • L02.31|

    Cutaneous abscess of buttock

  • L02.32|

    Furuncle of buttock

  • L02.33|

    Carbuncle of buttock

  • L02.4|

    Cutaneous abscess, furuncle and carbuncle of limb

Page 1 of 25Next