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ICD-10 • Chapter XII: Diseases of the skin and subcutaneous tissue (L00–L99)
Quick guide by blocks. The search below highlights terms and codes throughout the chapter.
Last updated: November 2025
L00–L08 Infections of the skin and subcutaneous tissue
| Code |
Description |
| L00 |
Impetigo |
| L01 |
Other staphylococcal skin infections |
| L02 |
Cutaneous abscess, furuncle and carbuncle |
| L03 |
Cellulitis |
| L04 |
Acute lymphadenitis |
| L05 |
Pilonidal disease |
| L08 |
Other local infections of the skin and subcutaneous tissue |
L10–L14 Bullous disorders
| Code |
Description |
| L10 |
Pemphigus |
| L11 |
Other acantholytic disorders |
| L12 |
Pemphigoid (bullous pemphigoid) |
| L13 |
Other bullous disorders |
| L14 |
Bullous disorders in diseases classified elsewhere |
L20–L30 Dermatitis and eczema
| Code |
Description |
| L20 |
Atopic dermatitis |
| L21 |
Seborrhoeic 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 |
| L29 |
Pruritus |
| L30 |
Other dermatitides |
L40–L45 Papulosquamous disorders
| Code |
Description |
| L40 |
Psoriasis |
| L41 |
Parapsoriasis |
| L42 |
Pityriasis rosea |
| L43 |
Lichen planus |
| L44 |
Other papulosquamous disorders |
| L45 |
Papulosquamous disorders in diseases classified elsewhere |
L50–L54 Urticaria and erythema
| Code |
Description |
| L50 |
Urticaria |
| L51 |
Erythema multiforme |
| L52 |
Erythema nodosum |
| L53 |
Other erythematous conditions |
| L54 |
Erythema in diseases classified elsewhere |
L55–L59 Skin and subcutaneous tissue disorders related to radiation and sun
| Code |
Description |
| L55 |
Sunburn |
| L56 |
Other acute skin changes due to ultraviolet radiation |
| L57 |
Skin changes related to chronic radiation |
| L58 |
Radiodermatitis |
| L59 |
Other disorders of skin and subcutaneous tissue related to radiation |
L60–L75 Disorders of skin appendages
| Code |
Description |
| L60 |
Disorders of nails |
| L62 |
Disorders of nails in diseases classified elsewhere |
| L63 |
Alopecia areata |
| L64 |
Androgenetic alopecia |
| L65 |
Other nonscarring alopecias |
| L66 |
Cicatricial alopecia (scarring) |
| L67 |
Other hair colour and hair shaft disorders |
| L68 |
Hypertrichosis |
| L70 |
Acne |
| L71 |
Rosacea |
| L72 |
Follicular cysts of skin and subcutaneous tissue |
| L73 |
Other follicular disorders |
| L74 |
Disorders of eccrine and apocrine sweat glands |
| L75 |
Hyperhidrosis |
L76–L76 Intraoperative and postprocedural complications
| Code |
Description |
| L76 |
Intraoperative and postprocedural complications of skin and subcutaneous tissue |
L80–L99 Other disorders of the skin and subcutaneous tissue
| Code |
Description |
| L80 |
Vitiligo |
| L81 |
Other disorders of pigmentation |
| L82 |
Seborrhoeic keratosis |
| L83 |
Acanthosis nigricans |
| L84 |
Corns and callosities |
| L85 |
Other epidermal thickening |
| L86 |
Generalized pustular psoriasis (when classified here) |
| L87 |
Disorders of transepidermal elimination |
| 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 |
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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