ICD-10-CM 2027
ICD-10 code for Fibrothorax
From the official ICD-10-CM alphabetic index entry “Fibrothorax”. Page updated September 29, 2026.
About coding Fibrothorax
The ICD-10-CM code for Fibrothorax is J94.1 (Fibrothorax).
Within J94 (other pleural conditions), J94.1 is specifically for Fibrothorax. Related codes cover Chylous effusion (J94.0), hemothorax (J94.2), other specified pleural conditions (J94.8) and pleural condition, unspecified (J94.9).
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 193 (Simple Pneumonia and Pleurisy with MCC, relative weight 1.2825), DRG 194 (Simple Pneumonia and Pleurisy with CC, relative weight 0.7888) and DRG 195 (Simple Pneumonia and Pleurisy without CC/MCC, relative weight 0.6063), 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 Fibrothorax ICD-10 codes
What is the ICD-10 code for Fibrothorax?
- J94.1 — Fibrothorax.
Is J94.1 billable?
- Yes. J94.1 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can J94.1 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict J94.1 as a principal diagnosis.
Is J94.1 a CC or MCC?
- No. J94.1 is neither a CC nor an MCC under MS-DRG v44.0.