Non-Billable / Non-Specific Code
ICD-10-CM J4A is the diagnosis code for Chronic lung allograft dysfunction. This code falls under the section "Chronic lower respiratory diseases" within Chapter 10 — Diseases of the respiratory system (J00-J99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Always refer to the official ICD-10-CM Tabular List for complete coding guidelines. Ensure documentation supports the specificity of the code selected. When in doubt, consult a certified medical coder or the latest CMS guidelines.
Understanding where J4A sits in the ICD-10-CM classification helps ensure proper coding:
No, J4A is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
J4A is the ICD-10-CM diagnosis code for "Chronic lung allograft dysfunction". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
J4A is located in Section J40-J4A — "Chronic lower respiratory diseases" within Chapter 10 of the ICD-10-CM Tabular List.
J4A has 3 sub-code(s) that provide more specific detail: J4A.0, J4A.8, J4A.9.
Use J4A when the patients documented diagnosis matches "Chronic lung allograft dysfunction" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Chronic lung allograft dysfunction is J4A.
No, J4A is non-billable. Use a more specific sub-code for primary diagnosis billing.
J4A is in Chapter 10 of the ICD-10-CM Tabular List.
Yes, J4A is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.