Non-Billable / Non-Specific Code
ICD-10-CM J11 is the diagnosis code for Influenza due to unidentified influenza virus. This code falls under the section "Influenza and pneumonia" 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 J11 sits in the ICD-10-CM classification helps ensure proper coding:
No, J11 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
J11 is the ICD-10-CM diagnosis code for "Influenza due to unidentified influenza virus". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
J11 is located in Section J09-J18 — "Influenza and pneumonia" within Chapter 10 of the ICD-10-CM Tabular List.
J11 has 4 sub-code(s) that provide more specific detail: J11.0, J11.1, J11.2, J11.8.
Use J11 when the patients documented diagnosis matches "Influenza due to unidentified influenza virus" 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 Influenza due to unidentified influenza virus is J11.
No, J11 is non-billable. Use a more specific sub-code for primary diagnosis billing.
J11 is in Chapter 10 of the ICD-10-CM Tabular List.
Yes, J11 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.