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
  • L02.425

    Furuncle of right lower limb

  • L02.426

    Furuncle of left lower limb

  • L02.429

    Furuncle of limb, unspecified

  • L02.431

    Carbuncle of right axilla

  • L02.432

    Carbuncle of left axilla

  • L02.433

    Carbuncle of right upper limb

  • L02.434

    Carbuncle of left upper limb

  • L02.435

    Carbuncle of right lower limb

  • L02.436

    Carbuncle of left lower limb

  • L02.439

    Carbuncle of limb, unspecified

  • L02.511

    Cutaneous abscess of right hand

  • L02.512

    Cutaneous abscess of left hand

  • L02.519

    Cutaneous abscess of unspecified hand

  • L02.521

    Furuncle right hand

  • L02.522

    Furuncle left hand

  • L02.529

    Furuncle unspecified hand

  • L02.531

    Carbuncle of right hand

  • L02.532

    Carbuncle of left hand

  • L02.539

    Carbuncle of unspecified hand

  • L02.611

    Cutaneous abscess of right foot

  • L02.612

    Cutaneous abscess of left foot

  • L02.619

    Cutaneous abscess of unspecified foot

  • L02.621

    Furuncle of right foot

  • L02.622

    Furuncle of left foot

  • L02.629

    Furuncle of unspecified foot

  • L02.631

    Carbuncle of right foot

  • L02.632

    Carbuncle of left foot

  • L02.639

    Carbuncle of unspecified foot

  • L02.811

    Cutaneous abscess of head [any part, except face]

  • L02.818

    Cutaneous abscess of other sites

  • L02.821

    Furuncle of head [any part, except face]

  • L02.828

    Furuncle of other sites

  • L02.831

    Carbuncle of head [any part, except face]

  • L02.838

    Carbuncle of other sites

  • L02.91

    Cutaneous abscess, unspecified

  • L02.92

    Furuncle, unspecified

  • L02.93

    Carbuncle, unspecified

  • L03.011

    Cellulitis of right finger

  • L03.012

    Cellulitis of left finger

  • L03.019

    Cellulitis of unspecified finger

  • L03.021

    Acute lymphangitis of right finger

  • L03.022

    Acute lymphangitis of left finger

  • L03.029

    Acute lymphangitis of unspecified finger

  • L03.031

    Cellulitis of right toe

  • L03.032

    Cellulitis of left toe

  • L03.039

    Cellulitis of unspecified toe

  • L03.041

    Acute lymphangitis of right toe

  • L03.042

    Acute lymphangitis of left toe

  • L03.049

    Acute lymphangitis of unspecified toe

  • L03.111

    Cellulitis of right axilla

PreviousPage 2 of 20Next