10ICD Code Hub

J44.81

Billable code

Bronchiolitis obliterans and bronchiolitis obliterans syndrome

The ICD-10 code for bronchiolitis obliterans and bronchiolitis obliterans syndrome is J44.81.

Clinical notes

Code also

Two codes may be needed to fully describe a condition, but unlike Code First/Use Additional Code, the sequencing order is not mandated by convention.

  • , if applicable, associated conditions, such as:
  • chronic graft-versus-host disease (D89.811)
  • chronic lung allograft dysfunction (J4A.-)
  • chronic respiratory conditions due to chemicals, gases, fumes and vapors (J68.4)

Code first

This code represents a manifestation of an underlying disease. Coding convention requires the underlying (etiology) code to be sequenced first, with this code listed second.

  • , 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)
  • other complications of heart-lung transplant (T86.39)
  • other complications of lung transplant (T86.818)

Also known as

Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.

  • Obliterative bronchiolitis

Documentation support

General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.

Related codes in this category

Associated MS-DRGs

J44.81 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.

Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.