MSSA Bacteremia ICD-10-CM Codes

MSSA Bacteremia ICD-10-CM Codes

Read this short guide and learn about MSSA Bacteremia ICD codes you can use.

By Matt Olivares on Aug 8, 2025.

Fact Checked by Gale Alagos.

Use Code

What MSSA bacteremia ICD codes can I use?

If you're looking for methicillin-sensitive Staphylococcus aureus (MSSA) bacteremia ICD codes, we'd like you to know that you can use five MSSA bacteremia-related codes. Here they are:

  • R78.81 - Bacteremia: This ICD code is intended for use on patients confirmed to have bacteremia. This is for bacteremia in general. No specific ICD codes mention MSSA Bacteremia in their names, so it's best to use this one since it's for bacteremia in general.
  • A49.01 - Methicillin-susceptible Staphylococcus aureus infection, unspecified site: This ICD code is used for a patient confirmed to have an MSSA infection, but the location isn't specified or identified. This is best used to designate a person having a condition of this type.
  • J15.211 - Pneumonia due to methicillin-susceptible Staphylococcus aureus: This ICD code is intended for use in patients confirmed to have pneumonia that developed due to MSSA in the body.
  • A41.01 - Sepsis due to methicillin-susceptible Staphylococcus aureus: This ICD code is intended for use in patients confirmed to have sepsis caused by MSSA in the body. This is a life-threatening problem.
  • B95.61 - methicillin-susceptible Staphylococcus aureus infection as the cause of diseases classified elsewhere: This ICD code is intended for use in patients confirmed to have a disease caused by an MSSA infection. It's best to use this if the MSSA-related problem your patient has doesn't have a specified ICD code, such as Items 3 and 4.
  • Z22.321 - Carrier or suspected carrier of methicillin-susceptible Staphylococcus aureus: This ICD code is meant to be used on a patient confirmed or suspected of being a carrier of MSSA. If the patient exhibits symptoms of MSSA bacteremia or has been confirmed to have it in their bloodstream, then you may use this code.

Please note that these are for methicillin-sensitive Staphylococcus aureus infections, not methicillin-resistant Staphylococcus aureus (MRSA) infections.

Are these MSSA bacteremia ICD codes billable?

Yes. All of the aforementioned MSSA Bacteremia-related ICD codes are valid and billable.

Clinical information about MSSA bacteremia

Methicillin-susceptible Staphylococcus aureus, or MSSA, is a type of bacterial infection caused by the presence of MSSA bacteria in the body. If there is MSSA in the blood, the person has MSSA Bacteremia. This is not good because having MSSA bacteremia can lead to unwanted complications, as the bacteria can reach organs such as the lungs and heart. These unwanted complications can be life-threatening, like pneumonia and sepsis.

If a person has MSSA, they will likely experience skin issues initially, such as abscesses appearing without warning, folliculitis (sores beneath hair follicles), and impetigo (blisters that can burst, leaving crusts in their wake).

Once they enter the bloodstream, they may experience a fever, or their body temperature may drop. They might become dazed and confused, too, as well as tired and sleepy. Having shortness of breath and pain in certain body areas are also symptoms of MSSA Bacteremia.

Synonyms include

  • Bacteremia due to methicillin-resistant Staphylococcus aureus
  • Bacteremia due to Staphylococcus aureus
  • Staphylococcal infectious disease
  • Methicillin-susceptible Staphylococcus aureus (MSSA) infection
  • Bronchopneumonia due to methicillin-susceptible Staphylococcus aureus
  • Pneumonia due to methicillin-susceptible Staphylococcus aureus
  • Septic shock co-occurring with acute organ dysfunction due to methicillin-susceptible Staphylococcus aureus
  • Toxic shock syndrome due to methicillin-susceptible Staphylococcus aureus
  • Methicillin-susceptible Staphylococcus aureus carrier
  • Suspected carrier of methicillin-susceptible Staphylococcus aureus
  • Staphylococcus carrier
  • Streptococcus pneumonia due to MSSA
  • Unspecified staphylococcus, but suspected to be MSSA
  • Methicillin suscep staph infct
  • Unspecified streptococcus accompanied by MSSA
  • MSSA infectious organism
  • MSSA skin infections
  • MSSA accompanied by escherichia coli
  • MSSA and parasitic diseases diagnoses

Popular search terms for MSSA bacteremia ICD-10 codes

  • MSSA bacteremia ICD-10 code
  • ICD-10 MSSA bacteremia
  • MSSA bacteremia diagnosis codes
  • ICD-10 codes for MSSA bacteremia

Commonly asked questions

Healthcare professionals will conduct physical examinations to check if the patient has low blood pressure, a heightened heart rate, trouble breathing, and a fever. They will also conduct blood tests and cultures to determine whether MSSA or other types of bacteria are causing the bacteremia and any other problems that may arise due to it.

Administering and prescribing antibiotics is the primary way of treating MSSA Bacteremia. Typically, two to four weeks of antibiotic therapy are implemented.

MSSA stands for Methicillin-susceptible Staphylococcus aureus. MSRA stands for Methicillin-resistant Staphylococcus aureus. The former can be treated with antibiotics, while the latter is resistant to many antibiotics. Antibiotics are still used to treat MSRA despite its resistance to many, but to determine which antibiotics can be used, healthcare professionals must first conduct blood cultures.

Related ICDs

EHR and practice management software

Get started for free

*No credit card required

Start for free

Free

$0/usd

Unlimited clients

Telehealth

1GB of storage

Client portal text

Automated billing and online payments