Final answer:
Chapter 13: INTEGUMENTARY SYSTEM, particularly section 13.4: Hair and Nails, discusses nail diseases and disorders.
Step-by-step explanation:
The chapter that contains codes for diseases and disorders of the nails is Chapter 13: INTEGUMENTARY SYSTEM, specifically section 13.4: Hair and Nails. This chapter discusses the structure and functions of the epidermis and dermis, hair, and nails, and provides information on skin and nail disorders. While diseases and disorders of the nails are covered in this section, codes related to medical diagnosis, such as those in the International Classification of Diseases (ICD), would actually be found in medical coding manuals rather than in educational textbooks.