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ICD-10-CM 2027

ICD-10 code for bacterium infection

Choose a code from the options below based on the documentation.

From the official ICD-10-CM alphabetic index entry “Infection, infected, infective (opportunistic) › Bacterium”. Page updated September 29, 2026.

About coding bacterium infection

The official ICD-10-CM index doesn't give a single default code for bacterium infection; the code depends on the details below.

More specific bacterium infection codes (official index)

  • paratyphosum A01.4 — Paratyphoid fever, unspecified
  • A A01.1 — Paratyphoid fever A
  • B A01.2 — Paratyphoid fever B
  • C A01.3 — Paratyphoid fever C
  • typhosum A01.00 — Typhoid fever, unspecified

Common questions about bacterium infection ICD-10 codes

What is the ICD-10 code for paratyphosum bacterium infection?

A01.4 — Paratyphoid fever, unspecified.

What is the ICD-10 code for typhosum bacterium infection?

A01.00 — Typhoid fever, unspecified.