L00-L99
Diseases of the skin and subcutaneous tissue
Chapter coding notes
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.-)
Blocks in this chapter
L00-L08
Infections of the skin and subcutaneous tissue
L10-L14
Bullous disorders
L20-L30
Dermatitis and eczema
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
L76
Intraoperative and postprocedural complications of skin and subcutaneous tissue
L80-L99
Other disorders of the skin and subcutaneous tissue
Official Guidelines for Chapter 12
FY 2026 ›Sections that reference codes in Chapter 12