Medical Coding Exam Prep

Category - ICD-10

Mr. Willian visits the dentist with the complaint of white-colored fuzzy patches on the tongue. On clinical assessment, the dentist excluded oral thrush diagnosis and made the diagnosis of oral hairy leukoplakia. What is the appropriate ICD-10 code here?
  1. K13.21
  2. K13.1
  3. K13.3
  4. K 13.79
Explanation
Answer: C 

K13.3 is the correct answer here as it codes for hairy leukoplakia. Oral hairy leukoplakia is seen on the tongue as a white hairy or corrugated passage. Most commonly, it is associated with HIV infection. 

Option A is not correct. K13.21 codes for leukoplakia for oral mucosa that includes tongue but for hairy leukoplakia, code K13.3 is used. It is excluded in K 13.21. 

Option B is not correct because K 13.1 codes for cheek and lip biting, which are not the diagnosis here. 

Option D is incorrect because K 13.79, including focal oral mucinosis. 
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