Billable / Specific Code
ICD-10-CM A15.4 is the diagnosis code for Tuberculosis of intrathoracic lymph nodes. This code falls under the section "Tuberculosis" within Chapter 1 — Certain infectious and parasitic diseases (A00-B99). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions should never be coded at the same time as A15.4. They are mutually exclusive:
Understanding where A15.4 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, A15.4 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
A15.4 is the ICD-10-CM diagnosis code for "Tuberculosis of intrathoracic lymph nodes". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of A15.4 is A15 ("Respiratory tuberculosis"). A15.4 provides a more specific classification within this category.
A15.4 is located in Section A15-A19 — "Tuberculosis" within Chapter 1 of the ICD-10-CM Tabular List.
Use A15.4 when the patients documented diagnosis matches "Tuberculosis of intrathoracic lymph nodes" 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 Tuberculosis of intrathoracic lymph nodes is A15.4.
Yes, A15.4 can be used as a primary diagnosis code since it is billable and specific.
A15.4 is in Chapter 1 of the ICD-10-CM Tabular List.
Type 1 Excludes for A15.4 include: tuberculosis specified as primary (A15.7).
Yes, A15.4 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.