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ICD-10-CM 2027

ICD-10 code for Typhoidal tularemia

A21.7

Generalized tularemia

✓ Billable / specificCC — complication/comorbidity

From the official ICD-10-CM alphabetic index entry “Tularemia › typhoidal”. Page updated September 29, 2026.

About coding Typhoidal tularemia

The ICD-10-CM code for Typhoidal tularemia is A21.7 (Generalized tularemia).

Within A21 (tularemia), A21.7 is specifically for generalized tularemia. Related codes cover Ulceroglandular tularemia (A21.0), Oculoglandular tularemia (A21.1), pulmonary tularemia (A21.2), gastrointestinal tularemia (A21.3), other forms of tularemia (A21.8) and unspecified (A21.9).

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.

In MS-DRG v44.0, it is part of the grouping logic for DRG 867 (Other Infectious and Parasitic Diseases Diagnoses with MCC, relative weight 2.1859), DRG 868 (Other Infectious and Parasitic Diseases Diagnoses with CC, relative weight 1.0235) and DRG 869 (Other Infectious and Parasitic Diseases Diagnoses without CC/MCC, relative weight 0.6787), in MDC 18 (Infectious and Parasitic Diseases, Systemic or Unspecified Sites), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

Common questions about Typhoidal tularemia ICD-10 codes

What is the ICD-10 code for Typhoidal tularemia?

A21.7 — Generalized tularemia.

Is A21.7 billable?

Yes. A21.7 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can A21.7 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict A21.7 as a principal diagnosis.

Is A21.7 a CC or MCC?

A21.7 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.