Pulmonary Langerhans Cell Histiocytosis
Pulmonary Langerhans Cell Histiocytosis is indexed under Respiratory, Interstitial Lung Disease. Also known as PLCH, eosinophilic granuloma of lung.
- US prevalence
- ~3-5% of diffuse lung disease on biopsy Source: ATS; NORD. This figure comes from a professional society, registry, or study rather than a federal source. Label: REPORTED.
- ICD-10-CM codes
- J84.82
- Typical onset
- 20-40 years; almost exclusively smokers
- Course
- managed
- Body systems
- pulmonary
- Sex differences
- Historically M > F; now equal due to smoking trends
- Racial and ethnic differences
- Limited data
What this page does not establish
These figures describe populations, not individuals, and none of them is a diagnosis or a treatment recommendation. Prevalence estimates are approximate and reflect published ranges. Disparity figures are reported patterns, not causes.
Taxonomy last reviewed 2026-05-19. Each figure on the interactive page carries its own source and retrieval date, which can be later than this review.
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