Is A18.2 a billable ICD-10-CM code?

Yes. A18.2 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does A18.2 sit in the tabular list?

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

A18.2

A18.2 — Tuberculous peripheral lymphadenopathy

Billable / specific codeICD-10-CM

A18.2 is a billable, specific ICD-10-CM code for tuberculous peripheral lymphadenopathy. It is valid for submission on a claim.

Excludes2 — not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

tuberculosis of bronchial and mediastinal lymph nodes (A15.4)
tuberculosis of mesenteric and retroperitoneal lymph nodes (A18.39)
tuberculous tracheobronchial adenopathy (A15.4)

Inclusion terms

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

Tuberculous adenitis

Risk adjustment

A18.2 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

A18.2 is named in 12 Medicare coverage policies — 12 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
A56421Billing and Coding: CT of the Abdomen and Pelvis
A56841Billing and Coding: Vitamin D; 25 hydroxy, includes fraction(s), if performed
A57484Billing and Coding: Vitamin D Assay Testing

How A18.2 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 A18.2.

Caseation lymphatic gland(tuberculous)
Scrofula, scrofulosis(tuberculosis of cervical lymph glands)
Abscess›scrofulous(tuberculous)
Adenitis›scrofulous(tuberculous)
Adenitis›strumous, tuberculous
Bubo›scrofulous(tuberculous)
Disease, diseased›scrofulous(tuberculous)
Lymphangitis›strumous, tuberculous
Tuberculosis, tubercular, tuberculous›axilla, axillary(gland)
Tuberculosis, tubercular, tuberculous›cervical(lymph gland or node)
Tuberculosis, tubercular, tuberculous›glandular, general
Tuberculosis, tubercular, tuberculous›infraclavicular gland

Related codes at this level

Codes that share A18. If A18.2 is not quite right, the correct code is usually one of these.

Questions about A18.2

Is A18.2 a billable ICD-10-CM code?: Yes. A18.2 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does A18.2 sit in the tabular list?: Certain infectious and parasitic diseases (A00-B99), in the block Tuberculosis (A15-A19).