ICD-10-CM · Chapter 12 · L00-L99
Diseases of the skin and subcutaneous tissue
1,001 billable diagnosis codes across 9 code blocks. FY2027 release.
Excludes 2 (not included here)
- 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
- L20 Atopic dermatitis
- L21 Seborrheic dermatitis
- L22 Diaper dermatitis Billable
- L23 Allergic contact dermatitis
- L24 Irritant contact dermatitis
- L25 Unspecified contact dermatitis
- L26 Exfoliative dermatitis Billable
- L27 Dermatitis due to substances taken internally
- L28 Lichen simplex chronicus and prurigo
- L29 Pruritus
- L30 Other 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
- L60 Nail disorders
- L62 Nail disorders in diseases classified elsewhere Billable
- 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-L99 Other disorders of the skin and subcutaneous tissue
- L80 Vitiligo Billable
- L81 Other disorders of pigmentation
- L82 Seborrheic keratosis
- L83 Acanthosis nigricans Billable
- L84 Corns and callosities Billable
- L85 Other epidermal thickening
- L86 Keratoderma in diseases classified elsewhere Billable
- L87 Transepidermal elimination disorders
- L88 Pyoderma gangrenosum Billable
- 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 Billable
Last reviewed: September 2026