All ICD10 Codes
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.-)
All CodesBillable Only
Internal Codes
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  • L25.8—

    Unspecified contact dermatitis due to other agents

  • L25.9—

    Unspecified contact dermatitis, unspecified cause

  • L26—

    Exfoliative dermatitis

  • L27—

    Dermatitis due to substances taken internally

  • L27.0—

    Generalized skin eruption due to drugs and medicaments taken internally

  • L27.1—

    Localized skin eruption due to drugs and medicaments taken internally

  • L27.2—

    Dermatitis due to ingested food

  • L27.8—

    Dermatitis due to other substances taken internally

  • L27.9—

    Dermatitis due to unspecified substance taken internally

  • L28—

    Lichen simplex chronicus and prurigo

  • L28.0—

    Lichen simplex chronicus

  • L28.1—

    Prurigo nodularis

  • L28.2—

    Other prurigo

  • L29—

    Pruritus

  • L29.0—

    Pruritus ani

  • L29.1—

    Pruritus scroti

  • L29.2—

    Pruritus vulvae

  • L29.3—

    Anogenital pruritus, unspecified

  • L29.8—

    Other pruritus

  • L29.81—

    Cholestatic pruritus

  • L29.89—

    Other pruritus

  • L29.9—

    Pruritus, unspecified

  • L30—

    Other and unspecified dermatitis

  • L30.0—

    Nummular dermatitis

  • L30.1—

    Dyshidrosis [pompholyx]

  • L30.2—

    Cutaneous autosensitization

  • L30.3—

    Infective dermatitis

  • L30.4—

    Erythema intertrigo

  • L30.5—

    Pityriasis alba

  • L30.8—

    Other specified dermatitis

  • L30.9—

    Dermatitis, unspecified

  • L40—

    Psoriasis

  • L40.0—

    Psoriasis vulgaris

  • L40.1—

    Generalized pustular psoriasis

  • L40.2—

    Acrodermatitis continua

  • L40.3—

    Pustulosis palmaris et plantaris

  • L40.4—

    Guttate psoriasis

  • L40.5—

    Arthropathic psoriasis

  • L40.50—

    Arthropathic psoriasis, unspecified

  • L40.51—

    Distal interphalangeal psoriatic arthropathy

  • L40.52—

    Psoriatic arthritis mutilans

  • L40.53—

    Psoriatic spondylitis

  • L40.54—

    Psoriatic juvenile arthropathy

  • L40.59—

    Other psoriatic arthropathy

  • L40.8—

    Other psoriasis

  • L40.9—

    Psoriasis, unspecified

  • L41—

    Parapsoriasis

  • L41.0—

    Pityriasis lichenoides et varioliformis acuta

  • L41.1—

    Pityriasis lichenoides chronica

  • L41.3—

    Small plaque parapsoriasis

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