A15.4 Tuberculosis of intrathoracic lymph nodes

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Applicable to

• Tuberculosis of hilar lymph nodes
• Tuberculosis of mediastinal lymph nodes
• Tuberculosis of tracheobronchial lymph nodes

Excludes1 (never code together)

• tuberculosis specified as primary (A15.7)

MS-DRG index

Defines the logic of DRG(s) 177-179 in MDC 04.

Approximate ICD-9-CM (GEMs)

• 012.10 Tuberculosis of intrathoracic lymph nodes, unspecified (approximate)

Code annotations containing back-references to A15.4

Back-references to A15.4

• Type 2 Excludes: A18.2 Tuberculous peripheral lymphadenopathy ("tuberculosis of bronchial and mediastinal lymph nodes (A15.4)")
• Type 2 Excludes: A18.2 Tuberculous peripheral lymphadenopathy ("tuberculous tracheobronchial adenopathy (A15.4)")

Back-references to A15

• Type 2 Excludes: A31 Infection due to other mycobacteria ("tuberculosis (A15-A19)")
• Code Also: D61.82 Myelophthisis ("tuberculosis (A15.-)")
• Type 1 Excludes: J60 Coalworker's pneumoconiosis ("coalworker pneumoconiosis with tuberculosis, any type in A15 (J65)")
• Type 1 Excludes: J61 Pneumoconiosis due to asbestos and other mineral fibers ("pneumoconiosis with tuberculosis, any type in A15 (J65)")
• Type 1 Excludes: J62 Pneumoconiosis due to dust containing silica ("pneumoconiosis with tuberculosis, any type in A15 (J65)")
• Type 1 Excludes: J63 Pneumoconiosis due to other inorganic dusts ("pneumoconiosis with tuberculosis, any type in A15 (J65)")
• Type 1 Excludes: J64 Unspecified pneumoconiosis ("pneumonoconiosis with tuberculosis, any type in A15 (J65)")
• Type 1 Excludes: J93 Pneumothorax and air leak ("tuberculous (current disease) pneumothorax (A15.-)")
• Type 1 Excludes: J94 Other pleural conditions ("tuberculous pleural conditions (current disease) (A15.-)")
• Type 1 Excludes: J98.11 Atelectasis ("tuberculous atelectasis (current disease) (A15)")

Diagnosis Index entries for A15.4

• Adenopathy (lymph gland) › tracheobronchial › tuberculous
• Adenopathy (lymph gland) › tuberculous › tracheobronchial
• Tuberculosis, tubercular, tuberculous (calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative) › bronchi, bronchial, bronchus › gland or node
• Tuberculosis, tubercular, tuberculous (calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative) › bronchi, bronchial, bronchus › lymph gland or node
• Tuberculosis, tubercular, tuberculous (calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative) › hilar lymph nodes
• Tuberculosis, tubercular, tuberculous (calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative) › lymph gland or node (peripheral) › bronchial
• Tuberculosis, tubercular, tuberculous (calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative) › lymph gland or node (peripheral) › hilar
• Tuberculosis, tubercular, tuberculous (calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative) › lymph gland or node (peripheral) › intrathoracic
• Tuberculosis, tubercular, tuberculous (calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative) › lymph gland or node (peripheral) › mediastinal
• Tuberculosis, tubercular, tuberculous (calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative) › lymph gland or node (peripheral) › tracheobronchial
• Tuberculosis, tubercular, tuberculous (calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative) › mediastinal lymph gland or node
• Tuberculosis, tubercular, tuberculous (calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative) › trachea, tracheal › lymph gland or node
• Tuberculosis, tubercular, tuberculous (calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative) › tracheobronchial › lymph gland or node

Nearby codes

• A15 Respiratory tuberculosis
• A15.0 Tuberculosis of lung
• A15.4 Tuberculosis of intrathoracic lymph nodes (this code)
• A15.5 Tuberculosis of larynx, trachea and bronchus
• A15.6 Tuberculous pleurisy
• A15.7 Primary respiratory tuberculosis
• A15.8 Other respiratory tuberculosis
• A15.9 Respiratory tuberculosis unspecified