Adult Dandruff (Pityriasis Capitis Simplex)

The current Index entry for “dandruff” directs to code L21.0 , Seborrhea capitis. However, code L21.0 has a pediatric age limit of 0-17 years. The medical term for dandruff “pityriasis capitis simplex” is also listed in the Index, which directs to code L30.5 , Pityriasis alba. Code L30.5 does not describe dandruff. How should dandruff in an adult patient be coded? ...

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Note:  The following article synopsis was NOT provided by the AHA. It was created by Find-A-Code/innoviHealth.

Article Overview

This premium coding article explains a question about how adult dandruff is addressed in ICD-10-CM indexing. It is intended for coding professionals, auditors, and clinical documentation staff who need to understand the article’s discussion of terminology, index references, and age-related applicability within the ICD-10-CM system.

Why This Topic Matters

Accurate diagnosis coding depends on matching documented terms to the correct ICD-10-CM index entry and understanding when age-specific guidance affects code selection. This article is relevant when reviewing documentation for scalp and dandruff-related conditions in adult patients.

What You Will Learn

  • How the article frames the relationship between dandruff terminology and ICD-10-CM indexing
  • Why age applicability is part of the discussion
  • What general coding topic the article resolves for adult patients with dandruff
  • How related terminology is treated in the article’s coding discussion

Who Should Read This

  • Medical coders
  • Coding auditors
  • Clinical documentation improvement staff
  • Revenue cycle staff
  • Healthcare compliance staff

Codes Discussed


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