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  3. J00–J99
  4. J60-J70
  5. Hypersensitivity pneumonitis due to organic dust (J67)

Hypersensitivity pneumonitis due to organic dust (J67)

The ICD-10 code J67 and its subcodes identify various forms of hypersensitivity pneumonitis caused by inhaling organic dust. These codes specify lung conditions triggered by different occupational or environmental organic dust exposures.

Hypersensitivity pneumonitis due to organic dust encompasses a range of diagnoses, from J67.0 (Farmer's lung), also known as Farmers' lung or Grain-handlers' disease, to rare forms like J67.1 (Bagassosis) and J67.2 (Bird fancier's lung), which includes synonyms such as Budgerigar-fanciers' disease. Other specialized conditions include J67.4 (Maltworker's lung) and J67.5 (Mushroom-worker's lung). The code J67.8 captures hypersensitivity pneumonitis caused by various other organic dust sources, with numerous synonyms like Animal handlers' lung and Feather-pickers' disease. When the organic dust source is unknown, J67.9 applies, covering terms such as Tropical pulmonary alveolitis and Sick building syndrome. Medical coders use these codes to accurately document lung diseases triggered by environmental allergens linked to specific exposures, assisting in precise diagnosis and treatment planning.

Instructional Notations

Includes

This note appears immediately under a three character code title to further define, or give examples of, the content of the category.

  • allergic alveolitis and pneumonitis due to inhaled organic dust and particles of fungal, actinomycetic or other origin

Type 1 Excludes

A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

  • pneumonitis due to inhalation of chemicals, gases, fumes or vapors J68.0

Clinical Terms

The following clinical terms provide additional context, helping users better understand the clinical background and common associations for each diagnosis listed in this section. Including related terms alongside ICD-10-CM codes supports coders, billers, and healthcare professionals in improving accuracy, enhancing documentation, and facilitating research or patient education.

Bird Fancier's Lung

A form of alveolitis or pneumonitis due to an acquired hypersensitivity to inhaled avian antigens, usually proteins in the dust of bird feathers and droppings.

Farmer's Lung

A form of alveolitis or pneumonitis due to an acquired hypersensitivity to inhaled antigens associated with farm environment. Antigens in the farm dust are commonly from bacteria actinomycetes (SACCHAROPOLYSPORA and THERMOACTINOMYCES), fungi, and animal proteins in the soil, straw, crops, pelts, serum, and excreta.

Sick Building Syndrome

A group of symptoms that are two- to three-fold more common in those who work in large, energy-efficient buildings, associated with an increased frequency of headaches, lethargy, and dry skin. Clinical manifestations include hypersensitivity pneumonitis (ALVEOLITIS, EXTRINSIC ALLERGIC); allergic rhinitis (RHINITIS, ALLERGIC, PERENNIAL); ASTHMA; infections, skin eruptions, and mucous membrane irritation syndromes. Current usage tends to be less restrictive with regard to the type of building and delineation of complaints. (From Segen, Dictionary of Modern Medicine, 1992)