A20.2 Pneumonic plague

Billable ICD-10-CM code, FY2026. Acts as a Major Complication or Comorbidity (MCC) as a secondary diagnosis.

Applies from A20 Plague

Includes

• infection due to Yersinia pestis

Risk adjustment (HCC)

• CMS-HCC V22: HCC 115 — Pneumococcal Pneumonia, Empyema, Lung Abscess
• ESRD V24: HCC 115

MS-DRG index

Defines the logic of DRG(s) 177-179 in MDC 04.

Approximate ICD-9-CM (GEMs)

• 020.3 Primary pneumonic plague (approximate)
• 020.4 Secondary pneumonic plague (approximate)
• 020.5 Pneumonic plague, unspecified (approximate)

Code annotations containing back-references to A20.2

Back-references to A20

• Type 1 Excludes: A28.2 Extraintestinal yersiniosis ("plague (A20.-)")

Diagnosis Index entries for A20.2

• Plague › pneumonic (primary) (secondary)
• Plague › pulmonary, pulmonic
• Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved) › in (due to) › Yersinia pestis

Nearby codes

• A20 Plague
• A20.0 Bubonic plague
• A20.1 Cellulocutaneous plague
• A20.2 Pneumonic plague (this code)
• A20.3 Plague meningitis
• A20.7 Septicemic plague
• A20.8 Other forms of plague
• A20.9 Plague, unspecified