Diseases of the skin and subcutaneous tissue (L00–L99)

Browse all the diagnosis codes used for diseases of the skin and subcutaneous tissue (l00–l99). For easy navigation, the diagnosis codes are sorted in alphabetical order and grouped by sections. Each section is clearly marked with its description, and the corresponding three-digit code range. This format makes it simple to browse diagnosis codes in this chapter or section and find what you're looking for. We've also added green checkmark icons to label billable codes, and red warning icons for non-billable ones. This makes it easy to identify which codes can be billed.
  • Diseases of the skin and subcutaneous tissue (L00–L99)

    Excludes2: 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

    • Infections of the skin and subcutaneous tissue (L00-L08)

      • Staphylococcal scalded skin syndrome (L00)
      • Impetigo (L01)
      • Cutaneous abscess, furuncle and carbuncle (L02)
      • Cellulitis and acute lymphangitis (L03)
      • Acute lymphadenitis (L04)
      • Pilonidal cyst and sinus (L05)
      • Other local infections of skin and subcutaneous tissue (L08)
    • Bullous disorders (L10-L14)

      • Pemphigus (L10)
      • Other acantholytic disorders (L11)
      • Pemphigoid (L12)
      • Other bullous disorders (L13)
      • Bullous disorders in diseases classified elsewhere (L14)
    • Dermatitis and eczema (L20-L30)

      • Atopic dermatitis (L20)
      • Seborrheic dermatitis (L21)
      • Diaper dermatitis (L22)
      • Allergic contact dermatitis (L23)
      • Irritant contact dermatitis (L24)
      • Unspecified contact dermatitis (L25)
      • Exfoliative dermatitis (L26)
      • Dermatitis due to substances taken internally (L27)
      • Lichen simplex chronicus and prurigo (L28)
      • Pruritus (L29)
      • Other and unspecified dermatitis (L30)
    • Papulosquamous disorders (L40-L45)

      • Psoriasis (L40)
      • Parapsoriasis (L41)
      • Pityriasis rosea (L42)
      • Lichen planus (L43)
      • Other papulosquamous disorders (L44)
      • Papulosquamous disorders in diseases classified elsewhere (L45)
    • Urticaria and erythema (L49-L54)

      • Exfoliation due to erythematous conditions according to extent of body surface involved (L49)
      • Urticaria (L50)
      • Erythema multiforme (L51)
      • Erythema nodosum (L52)
      • Other erythematous conditions (L53)
      • Erythema in diseases classified elsewhere (L54)
    • Radiation-related disorders of the skin and subcutaneous tissue (L55-L59)

      • Sunburn (L55)
      • Other acute skin changes due to ultraviolet radiation (L56)
      • Skin changes due to chronic exposure to nonionizing radiation (L57)
      • Radiodermatitis (L58)
      • Other disorders of skin and subcutaneous tissue related to radiation (L59)
    • Disorders of skin appendages (L60-L75)

      • Nail disorders (L60)
      • Nail disorders in diseases classified elsewhere (L62)
      • Alopecia areata (L63)
      • Androgenic alopecia (L64)
      • Other nonscarring hair loss (L65)
      • Cicatricial alopecia [scarring hair loss] (L66)
      • Hair color and hair shaft abnormalities (L67)
      • Hypertrichosis (L68)
      • Acne (L70)
      • Rosacea (L71)
      • Follicular cysts of skin and subcutaneous tissue (L72)
      • Other follicular disorders (L73)
      • Eccrine sweat disorders (L74)
      • Apocrine sweat disorders (L75)
    • Intraoperative and postprocedural complications of skin and subcutaneous tissue (L76)

      • Intraoperative and postprocedural complications of skin and subcutaneous tissue (L76)
    • Other disorders of the skin and subcutaneous tissue (L80-L99)

      • Vitiligo (L80)
      • Other disorders of pigmentation (L81)
      • Seborrheic keratosis (L82)
      • Acanthosis nigricans (L83)
      • Corns and callosities (L84)
      • Other epidermal thickening (L85)
      • Keratoderma in diseases classified elsewhere (L86)
      • Transepidermal elimination disorders (L87)
      • Pyoderma gangrenosum (L88)
      • Pressure ulcer (L89)
      • Atrophic disorders of skin (L90)
      • Hypertrophic disorders of skin (L91)
      • Granulomatous disorders of skin and subcutaneous tissue (L92)
      • Lupus erythematosus (L93)
      • Other localized connective tissue disorders (L94)
      • Vasculitis limited to skin, not elsewhere classified (L95)
      • Non-pressure chronic ulcer of lower limb, not elsewhere classified (L97)
      • Other disorders of skin and subcutaneous tissue, not elsewhere classified (L98)
      • Other disorders of skin and subcutaneous tissue in diseases classified elsewhere (L99)