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Compare/A19 vs A31

A19 vs A31

A19 (Miliary tuberculosis) compared with A31 (Infection due to other mycobacteria), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).

Can these codes be reported together?

Yes, when both are documented. A31 carries an Excludes2 note covering A19: “tuberculosis (A15-A19)”

Excludes2 marks distinct conditions — both may be reported when both are documented.

Side by side

A19Miliary tuberculosisA31Infection due to other mycobacteria
Billing statusNon-billable header

Report instead: A19.0, A19.1, A19.2, A19.8, A19.9

Non-billable header

Report instead: A31.0, A31.1, A31.2, A31.8, A31.9

ClassificationA00-B99 — Certain Infectious and Parasitic Diseases (A00-B99)A00-B99 — Certain Infectious and Parasitic Diseases (A00-B99)
DefinitionMiliary tuberculosis is a non-billable ICD-10-CM category code (A19).Infection due to other mycobacteria is a non-billable ICD-10-CM category code (A31).
Includes
disseminated tuberculosis
generalized tuberculosis
tuberculous polyserositis
infections due to Mycobacterium tuberculosis and Mycobacterium bovis
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Use additional code
code, if applicable, for associated cachexia (E88.A)
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Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources