ICD-10-CM Codes
A00-B99 Certain infectious and parasitic diseases
A30-A49 Other bacterial diseases
A49- Bacterial infection of unspecified site
2022 ICD-10-CM Diagnosis Code A49.02

2022 ICD-10-CM Diagnosis Code A49.02

Methicillin resistant Staphylococcus aureus infection, unspecified site

2016

2017

2018

2019

2020

2021

2022

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 2022 edition of ICD-10-CM A49.02 became effective on October 1, 2021.
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
2022 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
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 v39.0):

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
2021 (effective 10/1/2020): No change
2022 (effective 10/1/2021): No change

Code annotations containing back-references to A49.02:

Type 1 Excludes: Z16

ICD-10-CM Diagnosis Code Z16
Resistance to antimicrobial drugs
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
- 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 2021 2022 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)
- infection A49.02

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.

2022 ICD-10-CM Diagnosis Code A49.02

Methicillin resistant Staphylococcus aureus infection, unspecified site

Certain infectious and parasitic diseases

Bacterial infection of unspecified site

Resistance to antimicrobial drugs

Unspecified infectious disease

Methicillin susceptible Staphylococcus aureus infection, unspecified site