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ICD-10-CM 2027

ICD-10 code for Harvester's lung

J67.0

Farmer's lung

✓ Billable / specific

From the official ICD-10-CM alphabetic index entry “Harvester's lung”. Page updated September 29, 2026.

About coding Harvester's lung

The ICD-10-CM code for Harvester's lung is J67.0 (Farmer's lung).

Within J67 (hypersensitivity pneumonitis due to organic dust), J67.0 is specifically for Farmer's lung. Related codes cover Bagassosis (J67.1), Bird fancier's lung (J67.2), Suberosis (J67.3), Maltworker's lung (J67.4), Mushroom-worker's lung (J67.5), Maple-bark-stripper's lung (J67.6), air conditioner and humidifier lung (J67.7), hypersensitivity pneumonitis due to other organic dusts (J67.8) and 1 more.

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 196 (Interstitial Lung Disease with MCC, relative weight 1.8336), DRG 197 (Interstitial Lung Disease with CC, relative weight 0.9492) and DRG 198 (Interstitial Lung Disease without CC/MCC, relative weight 0.7259), in MDC 04 (Diseases and Disorders of the Respiratory System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

Common questions about Harvester's lung ICD-10 codes

What is the ICD-10 code for Harvester's lung?

J67.0 — Farmer's lung.

Is J67.0 billable?

Yes. J67.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can J67.0 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict J67.0 as a principal diagnosis.

Is J67.0 a CC or MCC?

No. J67.0 is neither a CC nor an MCC under MS-DRG v44.0.