ICD-10-CM 2027
ICD-10 code for Fibrosa obliterans bronchiolitis
From the official ICD-10-CM alphabetic index entry “Bronchiolitis (acute) (infective) (subacute) › fibrosa obliterans”. Page updated September 29, 2026.
About coding Fibrosa obliterans bronchiolitis
The ICD-10-CM code for Fibrosa obliterans bronchiolitis is J44.81 (Bronchiolitis obliterans and bronchiolitis obliterans syndrome).
Within J44.8 (other specified chronic obstructive pulmonary disease), J44.81 is specifically for bronchiolitis obliterans and bronchiolitis obliterans syndrome. Related codes cover other specified chronic obstructive pulmonary disease (J44.89).
Code first , if applicable: complication of bone marrow transplant (T86.09), complication of stem cell transplant (T86.5), heart-lung transplant rejection (T86.31), lung transplant rejection (T86.810) and 2 more.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
Common questions about Fibrosa obliterans bronchiolitis ICD-10 codes
What is the ICD-10 code for Fibrosa obliterans bronchiolitis?
- J44.81 — Bronchiolitis obliterans and bronchiolitis obliterans syndrome.
Is J44.81 billable?
- Yes. J44.81 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can J44.81 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict J44.81 as a principal diagnosis.
Is J44.81 a CC or MCC?
- No. J44.81 is neither a CC nor an MCC under MS-DRG v44.0.