2020 ICD-10-CM Diagnosis Code A49.02

Methicillin resistant Staphylococcus aureus infection, unspecified site

    2016 2017 2018 2019 2020 Billable/Specific Code
  • A49.02 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • Short description: Methicillin resis staph infection, unsp site
  • The 2020 edition of ICD-10-CM A49.02 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of A49.02 - other international versions of ICD-10 A49.02 may differ.
Applicable To
  • Methicillin resistant Staphylococcus aureus (MRSA) infection
The following code(s) above A49.02 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to A49.02:
  • A00-B99
    2020 ICD-10-CM Range A00-B99

    Certain infectious and parasitic diseases

    Includes
    • diseases generally recognized as communicable or transmissible
    Type 1 Excludes
    • certain localized infections - see body system-related chapters
    Type 2 Excludes
    • carrier or suspected carrier of infectious disease (Z22.-)
    • infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
    • infectious and parasitic diseases specific to the perinatal period (P35-P39)
    • influenza and other acute respiratory infections (J00-J22)
    Use Additional
    • code to identify resistance to antimicrobial drugs (Z16.-)
    Certain infectious and parasitic diseases
  • A49
    ICD-10-CM Diagnosis Code A49

    Bacterial infection of unspecified site

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • bacterial agents as the cause of diseases classified elsewhere (B95-B96)
    • chlamydial infection NOS (A74.9)
    • meningococcal infection NOS (A39.9)
    • rickettsial infection NOS (A79.9)
    • spirochetal infection NOS (A69.9)
    Bacterial infection of unspecified site
Approximate Synonyms
  • Methicillin resistant staph aureus (mrsa) infection
  • Methicillin resistant staphylococcus aureus infection
ICD-10-CM A49.02 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 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 A49.02 to ICD-9-CM

Code History
  • 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
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
Code annotations containing back-references to A49.02:
  • Type 1 Excludes: Z16
    ICD-10-CM Diagnosis Code Z16

    Resistance to antimicrobial drugs

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Code First
    • the infection
    Note
    • The codes in this category are provided for use as additional codes to identify the resistance and non-responsiveness of a condition to antimicrobial drugs.
    Type 1 Excludes
    • Methicillin resistant Staphylococcus aureus infection (A49.02)
    • Methicillin resistant Staphylococcus aureus pneumonia (J15.212)
    • Sepsis due to Methicillin resistant Staphylococcus aureus (A41.02)

Diagnosis Index entries containing back-references to A49.02:
  • Infection, infected, infective (opportunistic) B99.9
    ICD-10-CM Diagnosis Code B99.9

    Unspecified infectious disease

      2016 2017 2018 2019 2020 Billable/Specific Code
    • methicillin
      • resistant Staphylococcus aureus A49.02 (MRSA)
    • staphylococcal, unspecified site
      • aureus (methicillin susceptible) (MSSA) A49.01
        ICD-10-CM Diagnosis Code A49.01

        Methicillin susceptible Staphylococcus aureus infection, unspecified site

          2016 2017 2018 2019 2020 Billable/Specific Code
        Applicable To
        • Methicillin susceptible Staphylococcus aureus (MSSA) infection
        • Staphylococcus aureus infection NOS
        • methicillin resistant A49.02 (MRSA)
  • MRSA (Methicillin resistant Staphylococcus aureus)

ICD-10-CM Codes Adjacent To A49.02
A48.2 Nonpneumonic Legionnaires' disease [Pontiac fever]
A48.3 Toxic shock syndrome
A48.4 Brazilian purpuric fever
A48.5 Other specified botulism
A48.51 Infant botulism
A48.52 Wound botulism
A48.8 Other specified bacterial diseases
A49 Bacterial infection of unspecified site
A49.0 Staphylococcal infection, unspecified site
A49.01 Methicillin susceptible Staphylococcus aureus infection, unspecified site
A49.02 Methicillin resistant Staphylococcus aureus infection, unspecified site
A49.1 Streptococcal infection, unspecified site
A49.2 Hemophilus influenzae infection, unspecified site
A49.3 Mycoplasma infection, unspecified site
A49.8 Other bacterial infections of unspecified site
A49.9 Bacterial infection, unspecified
A50 Congenital syphilis
A50.0 Early congenital syphilis, symptomatic
A50.01 Early congenital syphilitic oculopathy
A50.02 Early congenital syphilitic osteochondropathy
A50.03 Early congenital syphilitic pharyngitis

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