K13.0: Diseases of lips

Diseases of the lips, as classified under code K13.0 of the ICD-10 WHO 2016 classification, refer to a variety of health conditions that affect the lips. These conditions may be benign or malignant and can manifest as pathologies such as chelitis (inflammation of the lips), lip discoloration, lip sores, or lip lesions. Factors contributing to these diseases may include environmental elements like exposure to extreme weather, habitual actions such as lip licking or biting, and predisposed medical conditions or allergies. Typical symptoms include lip redness, swelling, pain, ulcers, dryness or cracking, and possible changes in color or texture. These illnesses primarily impact the integumentary system (skin and related structures), though severe or untreated cases can affect oral health or function. Disease progression varies largely depending on the specific ailment and individual health factors.