A15.4 – Tuberculosis of intrathoracic lymph nodes
ICD-10-CM 2027 diagnosis code · Tuberculosis
ICD-10-CM code
A15.4
- Code
A15.4(claims format:A154)- Description
- Tuberculosis of intrathoracic lymph nodes
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 1. Certain infectious and parasitic diseases (A00-B99)
- Block
- A15-A19 Tuberculosis
- Parent codes
- A15
Notes for A15.4
Applicable to:
- Tuberculosis of hilar lymph nodes
- Tuberculosis of mediastinal lymph nodes
- Tuberculosis of tracheobronchial lymph nodes
Excludes1 (not coded here):
- tuberculosis specified as primary (A15.7)
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
Block A15-A19
Includes:
- infections due to Mycobacterium tuberculosis and Mycobacterium bovis
Excludes1 (not coded here):
- congenital tuberculosis (P37.0)
- nonspecific reaction to test for tuberculosis without active tuberculosis (R76.1-)
- pneumoconiosis associated with tuberculosis, any type in A15 (J65)
- positive PPD (R76.11)
- positive tuberculin skin test without active tuberculosis (R76.11)
- sequelae of tuberculosis (B90.-)
- silicotuberculosis (J65)
Use additional code:
- code, if applicable, for associated cachexia (E88.A)
Index terms for A15.4
Entries in the ICD-10-CM alphabetic index that lead to this code:
- Adenopathy, tracheobronchial, tuberculous
- Adenopathy, tuberculous, tracheobronchial
- Tuberculosis, tubercular, tuberculous, hilar lymph nodes
- Tuberculosis, tubercular, tuberculous, lymph gland or node, hilar
- Tuberculosis, tubercular, tuberculous, lymph gland or node, bronchial
- Tuberculosis, tubercular, tuberculous, lymph gland or node, mediastinal
- Tuberculosis, tubercular, tuberculous, mediastinal lymph gland or node
- Tuberculosis, tubercular, tuberculous, lymph gland or node, intrathoracic
- Tuberculosis, tubercular, tuberculous, lymph gland or node, tracheobronchial
- Tuberculosis, tubercular, tuberculous, tracheobronchial, lymph gland or node
- Tuberculosis, tubercular, tuberculous, trachea, tracheal, lymph gland or node
- Tuberculosis, tubercular, tuberculous, bronchi, bronchial, bronchus, gland or node
- Tuberculosis, tubercular, tuberculous, bronchi, bronchial, bronchus, lymph gland or node
Related codes in A15
Frequently asked questions
What is ICD-10 code A15.4?
A15.4 is the ICD-10-CM code for tuberculosis of intrathoracic lymph nodes, in the block A15-A19 (Tuberculosis).
Is A15.4 a billable code?
Yes. A15.4 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does A15.4 belong to?
It belongs to category A15 – Respiratory tuberculosis.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.