What is the ICD-10 code for Chronic lung allograft dysfunction?

The ICD-10-CM code for Chronic lung allograft dysfunction is J4A (fiscal year 2026). J4A is a non-billable category code — a more specific code such as J4A.0 is required for claims.

What does ICD-10 code J4A mean?

J4A is the ICD-10-CM diagnosis code for Chronic lung allograft dysfunction. Chronic lung allograft dysfunction

Is J4A a billable ICD-10 code?

No, J4A is not a billable code. You may need to select a more specific code from this category.

What chapter is J4A in?

J4A is classified under Chapter 10: Diseases of the respiratory system (J00-J99), Section J40-J4A: Chronic lower respiratory diseases (J40-J4A).

What more specific codes exist under J4A?

More specific codes under J4A include: J4A.0, J4A.8, J4A.9. Select the most specific code that matches the clinical documentation.

J4A Chronic lung allograft dysfunction

⚠ Non-Billable ICD-10-CM 2026

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The ICD-10-CM code for Chronic lung allograft dysfunction is J4A (FY2026). It is a non-billable category code — select a more specific code below for claims.

Classification

Chapter: 10: Diseases of the respiratory system (J00-J99)
Section: J40-J4A: Chronic lower respiratory diseases (J40-J4A)
Category J4A: 4 codes (3 billable)
FY2026 Status: Stable since FY2024

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)

Code Also

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

References

CMS — ICD-10-CM Official Code Set and Guidelines, FY2026
CDC/NCHS — ICD-10-CM Files and Browser Tool

J4A Chronic lung allograft dysfunction

Classification

References

Related Codes

More Specific Codes

Related Codes in J4A

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