A48.1

Legionnaires' disease

Billable / specificHCC V28 282

A48.1 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.

Inclusion terms

Includes (from A48)

  • diseases generally recognized as communicable or transmissible

Excludes1

Not coded here — never report together with this code.

Excludes2

Not included here — may be reported together when both conditions exist.

  • carrier or suspected carrier of infectious disease (Z22.-) (from A48)
  • certain localized infections - see body system-related chapters (from A48)
  • infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-) (from A48)
  • infectious and parasitic diseases specific to the perinatal period (P35-P39) (from A48)
  • influenza and other acute respiratory infections (J00-J22) (from A48)

Use additional code

Add a code to identify the following, if applicable.

  • code to identify resistance to antimicrobial drugs (Z16.-) (from A48)

Also known as

  • Disease, diseased, legionnaires'
  • Infection, infected, infective, Legionella pneumophila
  • Legionellosis
  • Legionnaires', disease
  • Legionnaires', pneumonia

Parent code

  • A48Other bacterial diseases, not elsewhere classifiedHeader

Related codes

  • A48.0Gas gangreneBillable
  • A48.2Nonpneumonic Legionnaires' disease [Pontiac fever]Billable
  • A48.3Toxic shock syndromeBillable
  • A48.4Brazilian purpuric feverBillable
  • A48.5Other specified botulismHeader
  • A48.8Other specified bacterial diseasesBillable

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