A49.01

Methicillin susceptible Staphylococcus aureus infection, unspecified site

Billable / specific

A49.01 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.

Inclusion terms

Applicable to

  • Methicillin susceptible Staphylococcus aureus (MSSA) infection
  • Staphylococcus aureus infection NOS

Includes (from A49)

  • diseases generally recognized as communicable or transmissible

Excludes1

Not coded here — never report together with this code.

  • bacterial agents as the cause of diseases classified elsewhere (B95-B96) (from A49)
  • meningococcal infection NOS (A39.9) (from A49)
  • rickettsial infection NOS (A79.9) (from A49)
  • spirochetal infection NOS (A69.9) (from A49)

Excludes2

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

  • carrier or suspected carrier of infectious disease (Z22.-) (from A49)
  • certain localized infections - see body system-related chapters (from A49)
  • infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-) (from A49)
  • infectious and parasitic diseases specific to the perinatal period (P35-P39) (from A49)
  • influenza and other acute respiratory infections (J00-J22) (from A49)
  • chlamydial infection NOS (A74.9) (from A49)

Use additional code

Add a code to identify the following, if applicable.

  • code to identify resistance to antimicrobial drugs (Z16.-) (from A49)

Also known as

  • Methicillin susceptible Staphylococcus aureus (MSSA) infection
  • Staphylococcus aureus infection NOS
  • Infection, infected, infective, methicillin, susceptible Staphylococcus aureus
  • Infection, infected, infective, staphylococcal, unspecified site, aureus
  • MSSA, infection

Parent code

  • A49.0Staphylococcal infection, unspecified siteHeader

Related codes

  • A49.02Methicillin resistant Staphylococcus aureus infection, unspecified siteBillable

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