J66.1 – Flax-dressers' disease

ICD-10-CM 2027 diagnosis code · Lung diseases due to external agents

Billable code

ICD-10-CM code J66.1
Code
J66.1 (claims format: J661)
Description
Flax-dressers' disease
Billable
Yes – valid for HIPAA-covered transactions
Valid for
Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter
10. Diseases of the respiratory system (J00-J99)
Block
J60-J70 Lung diseases due to external agents
Parent codes
J66

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

J66 – Airway disease due to specific organic dust

Excludes2 (not included here):
  • allergic alveolitis (J67.-)
  • asbestosis (J61)
  • bagassosis (J67.1)
  • farmer's lung (J67.0)
  • hypersensitivity pneumonitis due to organic dust (J67.-)
  • reactive airways dysfunction syndrome (J68.3)

Block J60-J70

Excludes2 (not included here):
  • asthma (J45.-)
  • malignant neoplasm of bronchus and lung (C34.-)

Index terms for J66.1

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in J66

Frequently asked questions

What is ICD-10 code J66.1?

J66.1 is the ICD-10-CM code for flax-dressers' disease, in the block J60-J70 (Lung diseases due to external agents).

Is J66.1 a billable code?

Yes. J66.1 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does J66.1 belong to?

It belongs to category J66 – Airway disease due to specific organic dust.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.