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
PrevNext
  • L53—

    Other erythematous conditions

  • L53.0—

    Toxic erythema

  • L53.1—

    Erythema annulare centrifugum

  • L53.2—

    Erythema marginatum

  • L53.3—

    Other chronic figurate erythema

  • L53.8—

    Other specified erythematous conditions

  • L53.9—

    Erythematous condition, unspecified

  • L54—

    Erythema in diseases classified elsewhere

  • L55—

    Sunburn

  • L55.0—

    Sunburn of first degree

  • L55.1—

    Sunburn of second degree

  • L55.2—

    Sunburn of third degree

  • L55.9—

    Sunburn, unspecified

  • L56—

    Other acute skin changes due to ultraviolet radiation

  • L56.0—

    Drug phototoxic response

  • L56.1—

    Drug photoallergic response

  • L56.2—

    Photocontact dermatitis [berloque dermatitis]

  • L56.3—

    Solar urticaria

  • L56.4—

    Polymorphous light eruption

  • L56.5—

    Disseminated superficial actinic porokeratosis (DSAP)

  • L56.8—

    Other specified acute skin changes due to ultraviolet radiation

  • L56.9—

    Acute skin change due to ultraviolet radiation, unspecified

  • L57—

    Skin changes due to chronic exposure to nonionizing radiation

  • L57.0—

    Actinic keratosis

  • L57.1—

    Actinic reticuloid

  • L57.2—

    Cutis rhomboidalis nuchae

  • L57.3—

    Poikiloderma of Civatte

  • L57.4—

    Cutis laxa senilis

  • L57.5—

    Actinic granuloma

  • L57.8—

    Other skin changes due to chronic exposure to nonionizing radiation

  • L57.9—

    Skin changes due to chronic exposure to nonionizing radiation, unspecified

  • L58—

    Radiodermatitis

  • L58.0—

    Acute radiodermatitis

  • L58.1—

    Chronic radiodermatitis

  • L58.9—

    Radiodermatitis, unspecified

  • L59—

    Other disorders of skin and subcutaneous tissue related to radiation

  • L59.0—

    Erythema ab igne [dermatitis ab igne]

  • L59.8—

    Other specified disorders of the skin and subcutaneous tissue related to radiation

  • L59.9—

    Disorder of the skin and subcutaneous tissue related to radiation, unspecified

  • L60—

    Nail disorders

  • L60.0—

    Ingrowing nail

  • L60.1—

    Onycholysis

  • L60.2—

    Onychogryphosis

  • L60.3—

    Nail dystrophy

  • L60.4—

    Beau's lines

  • L60.5—

    Yellow nail syndrome

  • L60.8—

    Other nail disorders

  • L60.9—

    Nail disorder, unspecified

  • L62—

    Nail disorders in diseases classified elsewhere

  • L63—

    Alopecia areata

PreviousPage 9 of 25Next