Emergency: 119
AMDA-IMIC

J4A Chronic lung allograft dysfunction

Category / Non-billable header 3 subcodes

Block: Chronic lower respiratory diseases (J40-J4B)

Code Also

  • , if applicable, bronchiolitis obliterans syndrome (J44.81)

Code First

  • , if applicable:
  • 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)

Subcodes

Each subcode links to a detail page with full clinical annotations.

Code Description Billable
J4A..0 Restrictive allograft syndrome Yes
J4A..8 Other chronic lung allograft dysfunction Yes
J4A..9 Chronic lung allograft dysfunction, unspecified Yes

Last reviewed: September 2026