Chapter XII of ICD-10 is titled “Diseases of the skin and subcutaneous tissue”. It spans codes L00–L99, in 8 blocks.
What Chapter XII excludes
Conditions that look similar but belong under another code.
- certain conditions originating in the perinatal period P00-P96
- certain infectious and parasitic diseases A00-B99
- complications of pregnancy, childbirth and the puerperium O00-O99
- congenital malformations, deformations and chromosomal abnormalities Q00-Q99
- endocrine, nutritional and metabolic diseases E00-E90
- injury, poisoning and certain other consequences of external causes S00-T98
- lipomelanotic reticulosis I89.8
- neoplasms C00-D48
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified R00-R99
- systemic connective tissue disorders M30-M36
Blocks in Chapter XII
- L00–L08Infections of the skin and subcutaneous tissue7 categories
- L10–L14Bullous disorders5 categories
- L20–L30Dermatitis and eczema11 categories
- L40–L45Papulosquamous disorders6 categories
- L50–L54Urticaria and erythema5 categories
- L55–L59Radiation-related disorders of the skin and subcutaneous tissue5 categories
- L60–L75Disorders of skin appendages14 categories
- L80–L99Other disorders of the skin and subcutaneous tissue19 categories
Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.
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