Chapter 12: Diseases of the skin and subcutaneous tissue (L00-L99)

74 code categories · 9 sections · ICD-10-CM 2026

Sections

L00-L08 Infections of the skin and subcutaneous tissue (L00-L08)
L10-L14 Bullous disorders (L10-L14)
L20-L30 Dermatitis and eczema (L20-L30)
L40-L45 Papulosquamous disorders (L40-L45)
L49-L54 Urticaria and erythema (L49-L54)
L55-L59 Radiation-related disorders of the skin and subcutaneous tissue (L55-L59)
L60-L75 Disorders of skin appendages (L60-L75)
L76 Intraoperative and postprocedural complications of skin and subcutaneous tissue (L76)
L80-L99 Other disorders of the skin and subcutaneous tissue (L80-L99)

Code Categories

L00 Staphylococcal scalded skin syndrome L01 Impetigo L02 Cutaneous abscess, furuncle and carbuncle L03 Cellulitis and acute lymphangitis L04 Acute lymphadenitis L05 Pilonidal cyst and sinus L08 Other local infections of skin and subcutaneous tissue L10 Pemphigus L11 Other acantholytic disorders L12 Pemphigoid L13 Other bullous disorders L14 Bullous disorders in diseases classified elsewhere L20 Atopic dermatitis L21 Seborrheic dermatitis L22 Diaper dermatitis L23 Allergic contact dermatitis L24 Irritant contact dermatitis L25 Unspecified contact dermatitis L26 Exfoliative dermatitis L27 Dermatitis due to substances taken internally L28 Lichen simplex chronicus and prurigo L29 Pruritus L30 Other and unspecified dermatitis L40 Psoriasis L41 Parapsoriasis L42 Pityriasis rosea L43 Lichen planus L44 Other papulosquamous disorders L45 Papulosquamous disorders in diseases classified elsewhere L49 Exfoliation due to erythematous conditions according to extent of body surface involved L50 Urticaria L51 Erythema multiforme L52 Erythema nodosum L53 Other erythematous conditions L54 Erythema in diseases classified elsewhere L55 Sunburn L56 Other acute skin changes due to ultraviolet radiation L57 Skin changes due to chronic exposure to nonionizing radiation L58 Radiodermatitis L59 Other disorders of skin and subcutaneous tissue related to radiation L60 Nail disorders L62 Nail disorders in diseases classified elsewhere L63 Alopecia areata L64 Androgenic alopecia L65 Other nonscarring hair loss L66 Cicatricial alopecia [scarring hair loss] L67 Hair color and hair shaft abnormalities L68 Hypertrichosis L70 Acne L71 Rosacea L72 Follicular cysts of skin and subcutaneous tissue L73 Other follicular disorders L74 Eccrine sweat disorders L75 Apocrine sweat disorders L76 Intraoperative and postprocedural complications of skin and subcutaneous tissue L80 Vitiligo L81 Other disorders of pigmentation L82 Seborrheic keratosis L83 Acanthosis nigricans L84 Corns and callosities L85 Other epidermal thickening L86 Keratoderma in diseases classified elsewhere L87 Transepidermal elimination disorders L88 Pyoderma gangrenosum L89 Pressure ulcer L90 Atrophic disorders of skin L91 Hypertrophic disorders of skin L92 Granulomatous disorders of skin and subcutaneous tissue L93 Lupus erythematosus L94 Other localized connective tissue disorders L95 Vasculitis limited to skin, not elsewhere classified L97 Non-pressure chronic ulcer of lower limb, not elsewhere classified L98 Other disorders of skin and subcutaneous tissue, not elsewhere classified L99 Other disorders of skin and subcutaneous tissue in diseases classified elsewhere
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Reviewed by Prajwal Shrestha, CPC, CRC
Certified Professional Coder (CPC) and Certified Risk Adjustment Coder (CRC) · AAPC Member ID 01997614 · About · Editorial policy · Content last reviewed: 2025-10-01

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