1. Home
  2. ICD-10-CM Codes
  3. J00–J99
  4. J40-J4A
  5. J4A
  6. 2024 ICD-10-CM Code J4A

2024 ICD-10-CM Diagnosis Code J4A

Chronic lung allograft dysfunction

ICD-10-CM Code:
J4A
ICD-10 Code for:
Chronic lung allograft dysfunction
Is Billable?
Not Valid for Submission
Code Navigator:

Code Classification

  • Diseases of the respiratory system
    (J00–J99)
    • Chronic lower respiratory diseases
      (J40-J4A)
      • Chronic lung allograft dysfunction
        (J4A)

J4A is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of chronic lung allograft dysfunction. The code is not specific and is NOT valid for the year 2024 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Specific Coding Applicable to Chronic lung allograft dysfunction

Non-specific codes like J4A require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10-CM codes with a higher level of specificity when coding for chronic lung allograft dysfunction:

  • Use J4A.0 for Restrictive allograft syndrome - BILLABLE CODE

  • Use J4A.8 for Other chronic lung allograft dysfunction - BILLABLE CODE

  • Use J4A.9 for Chronic lung allograft dysfunction, unspecified - BILLABLE CODE

New 2024 ICD-10-CM Code

J4A is new to ICD-10-CM code set for the FY 2024, effective October 1, 2023. The National Center for Health Statistics (NCHS) has published an update to the ICD-10-CM diagnosis codes which became effective October 1, 2023. This is a new and revised code for the FY 2024 (October 1, 2023 - September 30, 2024).

Tabular List of Diseases and Injuries

The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.


Code First

Code First
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation.
  • , 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

Code Also

Code Also
A "code also" note instructs that two codes may be required to fully describe a condition, but this note does not provide sequencing direction.
  • , if applicable, bronchiolitis obliterans syndrome J44.81

Code History

  • FY 2024 - Code Added, effective from 10/1/2023 through 9/30/2024