Diseases of the skin and subcutaneous tissue
Chapter 12 of the ICD-10-CM Tabular List covers L00-L99 and contains 1,207 codes across 74 categories, of which 1,001 are billable for FY2027.
Excludes2 — not included here
The conditions below are not part of this code, but a patient may have both at the same time. When documentation supports it, this code and the excluded code may both be reported.
- 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.-)
L00-L08 — Infections of the skin and subcutaneous tissue
L10-L14 — Bullous disorders
L20-L30 — Dermatitis and eczema
- L20Atopic dermatitis
- L21Seborrheic dermatitis
- L22Diaper dermatitis
- L23Allergic contact dermatitis
- L24Irritant contact dermatitis
- L25Unspecified contact dermatitis
- L26Exfoliative dermatitis
- L27Dermatitis due to substances taken internally
- L28Lichen simplex chronicus and prurigo
- L29Pruritus
- L30Other and unspecified dermatitis
L40-L45 — Papulosquamous disorders
L49-L54 — Urticaria and erythema
L55-L59 — Radiation-related disorders of the skin and subcutaneous tissue
L60-L75 — Disorders of skin appendages
- L60Nail disorders
- L62Nail disorders in diseases classified elsewhere
- L63Alopecia areata
- L64Androgenic alopecia
- L65Other nonscarring hair loss
- L66Cicatricial alopecia [scarring hair loss]
- L67Hair color and hair shaft abnormalities
- L68Hypertrichosis
- L70Acne
- L71Rosacea
- L72Follicular cysts of skin and subcutaneous tissue
- L73Other follicular disorders
- L74Eccrine sweat disorders
- L75Apocrine sweat disorders
L76 — Intraoperative and postprocedural complications of skin and subcutaneous tissue (L76)
L80-L99 — Other disorders of the skin and subcutaneous tissue
- L80Vitiligo
- L81Other disorders of pigmentation
- L82Seborrheic keratosis
- L83Acanthosis nigricans
- L84Corns and callosities
- L85Other epidermal thickening
- L86Keratoderma in diseases classified elsewhere
- L87Transepidermal elimination disorders
- L88Pyoderma gangrenosum
- L89Pressure ulcer
- L90Atrophic disorders of skin
- L91Hypertrophic disorders of skin
- L92Granulomatous disorders of skin and subcutaneous tissue
- L93Lupus erythematosus
- L94Other localized connective tissue disorders
- L95Vasculitis limited to skin, not elsewhere classified
- L97Non-pressure chronic ulcer of lower limb, not elsewhere classified
- L98Other disorders of skin and subcutaneous tissue, not elsewhere classified
- L99Other disorders of skin and subcutaneous tissue in diseases classified elsewhere