2021 ICD-10-CM Diagnosis Code J66

Airway disease due to specific organic dust

    2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
  • J66 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2021 edition of ICD-10-CM J66 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of J66 - other international versions of ICD-10 J66 may differ.
Type 2 Excludes
Type 2 Excludes Help
A type 2 excludes note represents "not included here". A type 2 excludes note indicates that the condition excluded is not part of the condition it is excluded from but a patient may have both conditions at the same time. When a type 2 excludes note appears under a code it is acceptable to use both the code (J66) and the excluded code together.
  • allergic alveolitis (
    ICD-10-CM Diagnosis Code J67
    • J67 Hypersensitivity pneumonitis due to organic d...
      • J67.0 Farmer's lung
      • J67.1 Bagassosis
      • J67.2 Bird fancier's lung
      • J67.3 Suberosis
      • J67.4 Maltworker's lung
      • J67.5 Mushroom-worker's lung
      • J67.6 Maple-bark-stripper's lung
      • J67.7 Air conditioner and humidifier lung
      • J67.8 Hypersensitivity pneumonitis due to other org...
      • J67.9 Hypersensitivity pneumonitis due to unspecifi...
    J67.-
    )
  • asbestosis (
    ICD-10-CM Diagnosis Code J61

    Pneumoconiosis due to asbestos and other mineral fibers

      2016 2017 2018 2019 2020 2021 Billable/Specific Code Adult Dx (15-124 years)
    Applicable To
    • Asbestosis
    Type 1 Excludes
    • pleural plaque with asbestosis (J92.0)
    • pneumoconiosis with tuberculosis, any type in A15 (J65)
    J61
    )
  • bagassosis (
    ICD-10-CM Diagnosis Code J67.1

    Bagassosis

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    • Bagasse disease
    • Bagasse pneumonitis
    J67.1
    )
  • farmer's lung (
    ICD-10-CM Diagnosis Code J67.0

    Farmer's lung

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    • Harvester's lung
    • Haymaker's lung
    • Moldy hay disease
    J67.0
    )
  • hypersensitivity pneumonitis due to organic dust (
    ICD-10-CM Diagnosis Code J67
    • J67 Hypersensitivity pneumonitis due to organic d...
      • J67.0 Farmer's lung
      • J67.1 Bagassosis
      • J67.2 Bird fancier's lung
      • J67.3 Suberosis
      • J67.4 Maltworker's lung
      • J67.5 Mushroom-worker's lung
      • J67.6 Maple-bark-stripper's lung
      • J67.7 Air conditioner and humidifier lung
      • J67.8 Hypersensitivity pneumonitis due to other org...
      • J67.9 Hypersensitivity pneumonitis due to unspecifi...
    J67.-
    )
  • reactive airways dysfunction syndrome (
    ICD-10-CM Diagnosis Code J68.3

    Other acute and subacute respiratory conditions due to chemicals, gases, fumes and vapors

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    • Reactive airways dysfunction syndrome
    J68.3
    )
The following code(s) above J66 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to J66:
  • J00-J99
    2021 ICD-10-CM Range J00-J99

    Diseases of the respiratory system

    Note
    • When a respiratory condition is described as occurring in more than one site and is not specifically indexed, it should be classified to the lower anatomic site (e.g. tracheobronchitis to bronchitis in J40).
    Type 2 Excludes
    • certain conditions originating in the perinatal period (P04-P96)
    • certain infectious and parasitic diseases (A00-B99)
    • complications of pregnancy, childbirth and the puerperium (O00-O9A)
    • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
    • endocrine, nutritional and metabolic diseases (E00-E88)
    • injury, poisoning and certain other consequences of external causes (S00-T88)
    • neoplasms (C00-D49)
    • smoke inhalation (T59.81-)
    • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
    Use Additional
    • code, where applicable, to identify:
    • exposure to environmental tobacco smoke (Z77.22)
    • exposure to tobacco smoke in the perinatal period (P96.81)
    • history of tobacco dependence (Z87.891)
    • occupational exposure to environmental tobacco smoke (Z57.31)
    • tobacco dependence (F17.-)
    • tobacco use (Z72.0)
    Diseases of the respiratory system
  • J60-J70
    2021 ICD-10-CM Range J60-J70

    Lung diseases due to external agents

    Type 2 Excludes
    • asthma (J45.-)
    • malignant neoplasm of bronchus and lung (C34.-)
    Lung diseases due to external agents
Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change
ICD-10-CM Codes Adjacent To J66
J63 Pneumoconiosis due to other inorganic dusts
J63.0 Aluminosis (of lung)
J63.1 Bauxite fibrosis (of lung)
J63.2 Berylliosis
J63.3 Graphite fibrosis (of lung)
J63.4 Siderosis
J63.5 Stannosis
J63.6 Pneumoconiosis due to other specified inorganic dusts
J64 Unspecified pneumoconiosis
J65 Pneumoconiosis associated with tuberculosis
J66 Airway disease due to specific organic dust
J66.0 Byssinosis
J66.1 Flax-dressers' disease
J66.2 Cannabinosis
J66.8 Airway disease due to other specific organic dusts
J67 Hypersensitivity pneumonitis due to organic dust
J67.0 Farmer's lung
J67.1 Bagassosis
J67.2 Bird fancier's lung
J67.3 Suberosis
J67.4 Maltworker's lung

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.