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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  • L76.21—

    Postprocedural hemorrhage of skin and subcutaneous tissue following a dermatologic procedure

  • L76.22—

    Postprocedural hemorrhage of skin and subcutaneous tissue following other procedure

  • L76.3—

    Postprocedural hematoma and seroma of skin and subcutaneous tissue following a procedure

  • L76.31—

    Postprocedural hematoma of skin and subcutaneous tissue following a dermatologic procedure

  • L76.32—

    Postprocedural hematoma of skin and subcutaneous tissue following other procedure

  • L76.33—

    Postprocedural seroma of skin and subcutaneous tissue following a dermatologic procedure

  • L76.34—

    Postprocedural seroma of skin and subcutaneous tissue following other procedure

  • L76.8—

    Other intraoperative and postprocedural complications of skin and subcutaneous tissue

  • L76.81—

    Other intraoperative complications of skin and subcutaneous tissue

  • L76.82—

    Other postprocedural complications of skin and subcutaneous tissue

  • L80—

    Vitiligo

  • L81—

    Other disorders of pigmentation

  • L81.0—

    Postinflammatory hyperpigmentation

  • L81.1—

    Chloasma

  • L81.2—

    Freckles

  • L81.3—

    Café au lait spots

  • L81.4—

    Other melanin hyperpigmentation

  • L81.5—

    Leukoderma, not elsewhere classified

  • L81.6—

    Other disorders of diminished melanin formation

  • L81.7—

    Pigmented purpuric dermatosis

  • L81.8—

    Other specified disorders of pigmentation

  • L81.9—

    Disorder of pigmentation, unspecified

  • L82—

    Seborrheic keratosis

  • L82.0—

    Inflamed seborrheic keratosis

  • L82.1—

    Other seborrheic keratosis

  • L83—

    Acanthosis nigricans

  • L84—

    Corns and callosities

  • L85—

    Other epidermal thickening

  • L85.0—

    Acquired ichthyosis

  • L85.1—

    Acquired keratosis [keratoderma] palmaris et plantaris

  • L85.2—

    Keratosis punctata (palmaris et plantaris)

  • L85.3—

    Xerosis cutis

  • L85.8—

    Other specified epidermal thickening

  • L85.9—

    Epidermal thickening, unspecified

  • L86—

    Keratoderma in diseases classified elsewhere

  • L87—

    Transepidermal elimination disorders

  • L87.0—

    Keratosis follicularis et parafollicularis in cutem penetrans

  • L87.1—

    Reactive perforating collagenosis

  • L87.2—

    Elastosis perforans serpiginosa

  • L87.8—

    Other transepidermal elimination disorders

  • L87.9—

    Transepidermal elimination disorder, unspecified

  • L88—

    Pyoderma gangrenosum

  • L89—

    Pressure ulcer

  • L89.0—

    Pressure ulcer of elbow

  • L89.00—

    Pressure ulcer of unspecified elbow

  • L89.000—

    Pressure ulcer of unspecified elbow, unstageable

  • L89.001—

    Pressure ulcer of unspecified elbow, stage 1

  • L89.002—

    Pressure ulcer of unspecified elbow, stage 2

  • L89.003—

    Pressure ulcer of unspecified elbow, stage 3

  • L89.004—

    Pressure ulcer of unspecified elbow, stage 4

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