Coding and coverage · ICD-10-CM

J44 › J44.8

J44.81 Bronchiolitis obliterans and bronchiolitis obliterans syndrome

BillableCMS-HCC V28: HCC 280age >= 180Chapter 10
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Instructional notes

Chapter 10

Excludes2Not included here: the patient may have both; report both when both are present.
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • smoke inhalation (T59.81-)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Use additional codeAdd a second code for the full picture.
  • code, where applicable, to identify:
  • exposure to environmental tobacco smoke (Z77.22)
  • exposure to tobacco smoke in the perinatal period (P96.81)
  • history of tobacco dependence (Z87.891)
  • occupational exposure to environmental tobacco smoke (Z57.31)
  • tobacco dependence (F17.-)
  • tobacco use (Z72.0)
Notes
  • When a respiratory condition is described as occurring in more than one site and is not specifically indexed, it should be classified to the lower anatomic site (e.g. tracheobronchitis to bronchitis in J40).

Section J40-J4B

Excludes1Not coded here: never report with this code, except when the two conditions are unrelated.
  • bronchitis due to chemicals, gases, fumes and vapors (J68.0)
Excludes2Not included here: the patient may have both; report both when both are present.

J44

Excludes2Not included here: the patient may have both; report both when both are present.
  • bronchiectasis (J47.-)
  • chronic bronchitis NOS (J42)
  • chronic simple and mucopurulent bronchitis (J41.-)
  • chronic tracheitis (J42)
  • chronic tracheobronchitis (J42)
  • emphysema without chronic bronchitis (J43.-)
Code also
  • type of asthma, if applicable (J45.-)
Includes
  • asthma with chronic obstructive pulmonary disease
  • chronic asthmatic (obstructive) bronchitis
  • chronic bronchitis with airway obstruction
  • chronic bronchitis with emphysema
  • chronic emphysematous bronchitis
  • chronic obstructive asthma
  • chronic obstructive bronchitis
  • chronic obstructive tracheobronchitis

This code

Code firstSequence the underlying condition 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)
  • other complications of heart-lung transplant (T86.39)
  • other complications of lung transplant (T86.818)
Code also
  • , 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)
Inclusion terms
  • Obliterative bronchiolitis

Chapter 10: Diseases of the respiratory system · J40-J4B Chronic lower respiratory diseases (J40-J4B)

Source: ICD-10-CM FY 2027 code descriptions and tabular list (CMS and CDC National Center for Health Statistics), effective 2026-10-01 through 2027-09-30 · CMS ICD-10 files. HCC mapping: CMS-HCC V28, payment year 2027. As of 2026-11-04.

Coverage and payment depend on the claim details; confirm with the Medicare Administrative Contractor.