J4A: Chronic lung allograft dysfunction
Codes under J4A (Chronic lung allograft dysfunction). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| J4A.0 | Restrictive allograft syndrome | ✓ |
| J4A.0 | Restrictive allograft syndrome | ✓ |
| J4A.8 | Other chronic lung allograft dysfunction | ✓ |
| J4A.8 | Other chronic lung allograft dysfunction | ✓ |
| J4A.9 | Chronic lung allograft dysfunction, unspecified | ✓ |
| J4A.9 | Chronic lung allograft dysfunction, unspecified | ✓ |
Frequently asked questions
What is ICD-10-CM code J4A?
J4A is an ICD-10-CM category covering Chronic lung allograft dysfunction. It contains 6 more specific diagnosis codes, 6 of which are billable.
Is J4A a billable code?
No — J4A is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example J4A.0 — Restrictive allograft syndrome). 6 of the 6 codes under J4A are billable.
What codes fall under J4A?
J4A includes J4A.0, J4A.0, J4A.8, J4A.8, J4A.9, plus 1 more. See the full list with descriptions and billable status above.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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