ICD-10 Code A49.0 – Staphylococcal infection, unspecified site (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A49.0 – Staphylococcal infection, unspecified site
What it is
A49.0 identifies a staphylococcal infection when the site is not specified in the record. Use it for documented staph infection without a named body location.
Clinical signs
Clinical features vary; refer to documentation. Common staphylococcal infections may include localized redness, swelling, pain, drainage, or systemic signs of infection, depending on the site involved.
When to use this code
Use A49.0 when the provider documents staphylococcal infection but does not identify a specific anatomic site. It is appropriate when the record confirms staph infection and no more precise code is available. Check documentation if the site, organism type, or condition is described more specifically.
Do not use for
Do not use this code for carrier or colonization states, or when the infection site is documented and a more specific code applies. Do not use it if the record only says “possible” or “rule out” staph infection.
Coding tip
Query for the infection site whenever possible, because a more specific diagnosis code may be required.