ICD-10-CM 2027
ICD-10 code for Hilar lymph nodes tuberculosis
From the official ICD-10-CM alphabetic index entry “Tuberculosis, tubercular, tuberculous (calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative) › hilar lymph nodes”. Page updated September 29, 2026.
About coding Hilar lymph nodes tuberculosis
The ICD-10-CM code for Hilar lymph nodes tuberculosis is A15.4 (Tuberculosis of intrathoracic lymph nodes). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on A15.4.
Within A15 (respiratory tuberculosis), A15.4 is specifically for tuberculosis of intrathoracic lymph nodes. Related codes cover tuberculosis of lung (A15.0), tuberculosis of larynx, trachea and bronchus (A15.5), tuberculous pleurisy (A15.6), primary respiratory tuberculosis (A15.7), other respiratory tuberculosis (A15.8) and unspecified (A15.9).
Don't report A15.4 together with the conditions in its Excludes1 note: tuberculosis specified as primary (A15.7).
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
More specific Hilar lymph nodes tuberculosis codes (official index)
- primary (progressive) A15.7 — Primary respiratory tuberculosis
Don't confuse with (Excludes1 for A15.4)
- tuberculosis specified as primary (A15.7)
Common questions about Hilar lymph nodes tuberculosis ICD-10 codes
What is the ICD-10 code for Hilar lymph nodes tuberculosis?
- A15.4 — Tuberculosis of intrathoracic lymph nodes. More specific codes apply when the documentation supports them: A15.7.
What is the ICD-10 code for primary hilar lymph nodes tuberculosis?
- A15.7 — Primary respiratory tuberculosis.
Is A15.4 billable?
- Yes. A15.4 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can A15.4 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict A15.4 as a principal diagnosis.
Is A15.4 a CC or MCC?
- A15.4 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.