Is A15.4 a billable ICD-10-CM code?

Yes. A15.4 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does A15.4 sit in the tabular list?

Certain infectious and parasitic diseases (A00-B99), in the block Tuberculosis (A15-A19).

What cannot be coded together with A15.4?

A15.4 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

A15.4

A15.4 — Tuberculosis of intrathoracic lymph nodes

Billable / specific codeICD-10-CM

A15.4 is a billable, specific ICD-10-CM code for tuberculosis of intrathoracic lymph nodes. It is valid for submission on a claim.

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

tuberculosis specified as primary (A15.7)

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

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

Risk adjustment

A15.4 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Medicare coverage

A15.4 is named in 10 Medicare coverage policies — 10 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A56416Billing and Coding: Assays for Vitamins and Metabolic Function
A56580Billing and Coding: Computerized Axial Tomography (CT), Thorax
A56841Billing and Coding: Vitamin D; 25 hydroxy, includes fraction(s), if performed
A57224Billing and Coding: Respiratory Care

How A15.4 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to A15.4.

Tuberculosis, tubercular, tuberculous›hilar lymph nodes
Tuberculosis, tubercular, tuberculous›mediastinal lymph gland or node
Adenopathy›tracheobronchial›tuberculous
Adenopathy›tuberculous›tracheobronchial
Tuberculosis, tubercular, tuberculous›bronchi, bronchial, bronchus›gland or node
Tuberculosis, tubercular, tuberculous›bronchi, bronchial, bronchus›lymph gland or node
Tuberculosis, tubercular, tuberculous›lymph gland or node›bronchial
Tuberculosis, tubercular, tuberculous›lymph gland or node›hilar
Tuberculosis, tubercular, tuberculous›lymph gland or node›intrathoracic
Tuberculosis, tubercular, tuberculous›lymph gland or node›mediastinal
Tuberculosis, tubercular, tuberculous›lymph gland or node›tracheobronchial
Tuberculosis, tubercular, tuberculous›trachea, tracheal›lymph gland or node

Related codes at this level

Codes that share A15. If A15.4 is not quite right, the correct code is usually one of these.

Questions about A15.4

Is A15.4 a billable ICD-10-CM code?: Yes. A15.4 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does A15.4 sit in the tabular list?: Certain infectious and parasitic diseases (A00-B99), in the block Tuberculosis (A15-A19).
What cannot be coded together with A15.4?: A15.4 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.