ICD-10-CM › A00-B99 › A30-A49 › A49.0 Staphylococcal infection, unspecified site › A49.01
Methicillin susceptible Staphylococcus aureus infection, unspecified site
ValidICD-10-CM diagnosis code.
Valid for claims with a date of service in the current code year.
What has happened to this code
Every change the publisher made, from 2012 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.
- FY2012 Added to the draft code set draft Methicillin susceptible Staphylococcus aureus infection, unspecified site
Official coding rules
Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.
Inherited from A49 Bacterial infection of unspecified site
Excludes1 - never coded here
- bacterial agents as the cause of diseases classified elsewhere (B95-B96)
- meningococcal infection NOS (A39.9)
- rickettsial infection NOS (A79.9)
- spirochetal infection NOS (A69.9)
Excludes2 - not included here
- chlamydial infection NOS (A74.9)
How CDC's index refers to this code
Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.
- MSSA > infection
- Infection, infected, infective > staphylococcal, unspecified site > aureus
- Infection, infected, infective > methicillin > susceptible Staphylococcus aureus
Codes in the same group
| Code | Description | Status |
|---|---|---|
| A49.02 | Methicillin resistant Staphylococcus aureus infection, unspecified site | Valid |