ICD-10-CM 2027
ICD-10 code for Graphite fibrosis
From the official ICD-10-CM alphabetic index entry “Graphite fibrosis (of lung)”. Page updated September 29, 2026.
About coding Graphite fibrosis
The ICD-10-CM code for Graphite fibrosis is J63.3 (Graphite fibrosis (of lung)).
Within J63 (pneumoconiosis due to other inorganic dusts), J63.3 is specifically for Graphite fibrosis (of lung). Related codes cover Aluminosis (of lung) (J63.0), Bauxite fibrosis (of lung) (J63.1), Berylliosis (J63.2), Siderosis (J63.4), Stannosis (J63.5) and pneumoconiosis due to other specified inorganic dusts (J63.6).
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 Graphite fibrosis ICD-10 codes
What is the ICD-10 code for Graphite fibrosis?
- J63.3 — Graphite fibrosis (of lung).
Is J63.3 billable?
- Yes. J63.3 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can J63.3 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict J63.3 as a principal diagnosis.
Is J63.3 a CC or MCC?
- No. J63.3 is neither a CC nor an MCC under MS-DRG v44.0.