ICD-10-CM 2027
ICD-10 code for Mason's lung
From the official ICD-10-CM alphabetic index entry “Mason's lung”. Page updated September 29, 2026.
About coding Mason's lung
The ICD-10-CM code for Mason's lung is J62.8 (Pneumoconiosis due to other dust containing silica).
Within J62, choose J62.8 (other dust containing silica) only when documentation doesn't support a more specific option: talc dust (J62.0).
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 Mason's lung ICD-10 codes
What is the ICD-10 code for Mason's lung?
- J62.8 — Pneumoconiosis due to other dust containing silica.
Is J62.8 billable?
- Yes. J62.8 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can J62.8 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict J62.8 as a principal diagnosis.
Is J62.8 a CC or MCC?
- No. J62.8 is neither a CC nor an MCC under MS-DRG v44.0.