ICD-10-CM 2027
ICD-10 code for Tularemic pneumonia
From the official ICD-10-CM alphabetic index entry “Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved) › tularemic”. Page updated September 29, 2026.
About coding Tularemic pneumonia
The ICD-10-CM code for Tularemic pneumonia is A21.2 (Pulmonary tularemia).
Within A21 (tularemia), A21.2 is specifically for pulmonary tularemia. Related codes cover Ulceroglandular tularemia (A21.0), Oculoglandular tularemia (A21.1), gastrointestinal tularemia (A21.3), generalized tularemia (A21.7), 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 177 (Respiratory Infections and Inflammations with MCC, relative weight 1.6092), DRG 178 (Respiratory Infections and Inflammations with CC, relative weight 0.9744) and DRG 179 (Respiratory Infections and Inflammations without CC/MCC, relative weight 0.7345), in MDC 04 (Diseases and Disorders of the Respiratory System), 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 Tularemic pneumonia ICD-10 codes
What is the ICD-10 code for Tularemic pneumonia?
- A21.2 — Pulmonary tularemia.
Is A21.2 billable?
- Yes. A21.2 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can A21.2 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict A21.2 as a principal diagnosis.
Is A21.2 a CC or MCC?
- A21.2 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.