1. ICD-10-CM Codes
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2. A00-B99 Certain infectious and parasitic diseases
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3. A30-A49 Other bacterial diseases
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4. A48- Other bacterial diseases, not elsewhere classified
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2018 ICD-10-CM Diagnosis Code A48.2

Nonpneumonic Legionnaires' disease [Pontiac fever]

2016 2017 2018 Billable/Specific Code

• A48.2 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
• The 2018 edition of ICD-10-CM A48.2 became effective on October 1, 2017.
• This is the American ICD-10-CM version of A48.2 - other international versions of ICD-10 A48.2 may differ.

• Extrapulmonary legionella infection
• Nonpneumonic legionnaires disease

• 867 Other infectious and parasitic diseases diagnoses with mcc
• 868 Other infectious and parasitic diseases diagnoses with cc
• 869 Other infectious and parasitic diseases diagnoses without cc/mcc

Convert A48.2 to ICD-9-CM

• 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
• 2017 (effective 10/1/2016): No change
• 2018 (effective 10/1/2017): No change

• Disease, diseased - see also Syndrome
  • legionnaires' A48.1
    ICD-10-CM Diagnosis Code A48.1

    Legionnaires' disease

    2016 2017 2018 Billable/Specific Code
    • nonpneumonic A48.2
• Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) R50.9
  ICD-10-CM Diagnosis Code R50.9

  Fever, unspecified

  2016 2017 2018 Billable/Specific Code

  Applicable To

  • Fever NOS
  • Fever of unknown origin [FUO]
  • Fever with chills
  • Fever with rigors
  • Hyperpyrexia NOS
  • Persistent fever
  • Pyrexia NOS
  • Pontiac A48.2
• Infection, infected, infective (opportunistic) B99.9
  ICD-10-CM Diagnosis Code B99.9

  Unspecified infectious disease

  2016 2017 2018 Billable/Specific Code
  • Legionella pneumophila A48.1
    ICD-10-CM Diagnosis Code A48.1

    Legionnaires' disease

    2016 2017 2018 Billable/Specific Code
    • nonpneumonic A48.2
• Legionellosis A48.1
  ICD-10-CM Diagnosis Code A48.1

  Legionnaires' disease

  2016 2017 2018 Billable/Specific Code
  • nonpneumonic A48.2
• Legionnaires'
  • disease A48.1
    ICD-10-CM Diagnosis Code A48.1

    Legionnaires' disease

    2016 2017 2018 Billable/Specific Code
    • nonpneumonic A48.2

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.